Parasound is a respected name when it comes to highly musical power amplifiers for prices that the are actually affordable. Yet, when it comes to value... they are hard to beat. There is a great Absolute Sound review where the reviewer compared them to his $20,000 Audio Research REF250s and was surprized how difficult it was to discern the differences. This is a beautiful, one owner amplifier and its built for years of enjoyment. FEATURES -Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect Coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel88,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks; ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger out AMPLIFIER SPECIFICATIONS -CLASS - A/B AmplificationPOWER/CH - (8 Ohm) 200WPOWER/CH - (4 Ohm) 400WBRIDGED POWER - 750 WattsDIMENSIONS - (LxWxH) 20 x 17.58 x 7.75WEIGHT: 60 Lbs IN THE BOX -ManualPower cordOriginal Box and packing CONDITION - Unit is in excellent conditon, clean and tested. No scratches but a couple light scuffs. Ready for years of great music. Includes everything that comes with a brand new unit. SHIPPING - We ship worldwide with UPS, Fed-Ex and various truck freight lines. All items are packed and padded with care if the original packaging is deemed insufficient. We know how exciting it is to anticipate the arrival of new gear and we want your item to arrive in the same condition it left our facility.

This is for pick up, if you need it shipped please contact me. I have a FedEx account and can ship cheaper than eBay quotes via the posting. I am listing my Parasound A21 amplifier. It’s in very nice shape and works perfectly. The sound is very derailed and controlled with a damping factor or 1,100. More specifications below. I have it in my system now and you are welcome to audition before purchasing. I am in Temecula wine country. I also have a silver one as well. Thanks, Jon Specifications Continuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ? Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: balanced 16 V rms < 0.04 % Slew rate: > 130 V/µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k ? unbalanced; 66 k ? balanced S/N ratio: 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Voltage: 110V - 120V Dimensions: 17-1/2 w x 7-5/8 h x 20 d, 7 h without feet Net weight: 60 lb.up

Original owner, non-smoking household. Comes with original box, power cord, and manual. Very powerful amp! Circuitry designed by legendary John Curl THX Ultra2 certified High bias Class A/AB operation Balanced inputs with discrete circuits and XLR connectors Direct Coupled - no capacitors or inductors in signal path Complementary MOSFET driver stage and JFET input stage 16 beta-matched 15 amp, 60 MHz bipolar output transistors 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel 88,000 F power supply filter capacitance DC Servo and relay protection circuits AC present, channel status, high temperature indicators Heavy-duty 24k gold-plated 5-way speaker terminals Gold-plated RCA input jacks; ground lift switch Auto turn-on by 12v trigger or audio signal, 12v trigger out 4u Chassis, carry handles, rack mounting adapter includedThe Parasound A 21 2 Channel Power Amplifier is a high-quality device designed to enhance your home audio experience. With its two channels and powerful sound, you can enjoy your favorite music or movies with exceptional clarity. Made by Parasound, a trusted brand in the industry, this power amplifier is sure to impress. Whether youre a music enthusiast or a home entertainment expert, the Parasound A 21 2 Channel Power Amplifier is a great addition to your system. Its sleek design and sturdy build ensure that it will last for years to come. So, if youre looking for a reliable and powerful amplifier, look no further than the Parasound A 21.

PERFECT CONDITION A21+ AMP. NO SCRATECHES DENTS OR DINGS ON IT AT ALL. COMES WITH ALL DOCUMENTS AND POWER CABLE. INCLUDED DOUBLE BOXED SHIPPING THAT CAME FROM THE MANUFACTURER. The Halo A 21+ power amplifier is a pinnacle of power and fidelityThe 21+ has two channels providing 250 watts per channel into 8 ?, it delivers breathtaking audio performance. The high bias Class A/AB operation ensures accurate and detailed sound reproduction, while the stable operation into 2 ? loads allows for versatility in speaker configurations. The direct-coupled design, free from capacitors in the signal path, preserves signal integrity and enhances transparency. With balanced XLR and unbalanced RCA inputs and A/B speaker terminals, it offers flexibility and compatibility. Experience pure power and fidelity with the Halo A 21+ power amplifier.Changes from the original A 21?A 21+250 ? 300 Watts (8?)400 ? 500 Watts (4?)750 ? 1000 Watts (bridged)Filter cap: 88,000 uF ? 108,000 uFS/N: 112dB ? 115 dBTHD (at full power): 0.2% ? 0.1%Crosstalk (20kHz): 63dB ? 70dBTransformer size: 1.2 kVA ? 1.3 kVAWeight: 60 LB ? 71 LBRefined Halo cosmetic with aluminum end caps & gold highlightsUpdated rear panel with heavy duty speaker terminals from JC 5Upgraded internal gold on gold audio connectionsUpdated auto turn on circuit

PARASOUND HALO A21+ POWER AMPLIFIERUSEDUSED AS A DEMO UNIT STORED IN A CABINET - LOW PLAY TIME NO RETURNS PER PARASOUND The Halo A 21+ power amplifier is a pinnacle of power and fidelity FEATURES300 watts x 2 @ 8 ? RMS, both channels driven500 watts x 2 @ 4 ? RMS, both channels driven1000 watts x 1 @ 8 ?, in bridged modeCircuitry designed by legendary John CurlHigh bias Class A/AB operation60 amperes peak current per channelStable with speaker impedance dips to 1.5 ?Balanced inputs with discrete circuitsCHK Infinium, custom 5-way speaker binding postsGold-plated RCA input & loop output jacksDirect-coupled signal path, no capacitors or inductorsDC Servo and relay protection circuitsAC turn-on inrush surge protection with relay bypassJFET input stage, MOSFET driver stage16 beta-matched 15 ampere, 60 MHz bipolar output transistors1.3 kVA shielded toroid transformer w/ independent windings for each channelIndependent power supplies for input stage, driver stage and output stage108,000 µF filter capacitors for output stagesFull power is rated all the way down to 5Hz for unrestricted low-end bassHarris hyper-fast soft-recovery bridge diode rectifiersAutomatic turn-on by 12 V trigger or audio sensing4 rack space chassis with rear carry handlesRack mount hardware is included

After 4 years, and certainly less than 200 hours of operation, it is time for me to downsize. Parasound Halo A21+ Stereo Power Amplifier 2x300 watts 8? in Black finish – used. Manufacturer: Parasound Halo Model: Halo A21+ Amplifier Description: Parasound Halo A21+ Stereo Amplifier – Black, 2x300 watts 8? both channels. Changes from the original A 21?A 21+ 250 ? 300 Watts (8?) 400 ? 500 Watts (4?) 750 ? 1000 Watts (bridged) Filter cap: 88,000 uF ? 108,000 uF S/N: 112dB ? 115 dB THD (at full power): 0.2% ? 0.1% Crosstalk (20kHz): 63dB ? 70dB Transformer size: 1.2 kVA ? 1.3 kVA Weight: 60 LB ? 71 LB Refined Halo cosmetic with aluminum end caps & gold highlights Updated rear panel with heavy duty speaker terminals from JC 5 Upgraded internal gold on gold audio connections Updated auto turn on circuit All Features 300 watts x 2 @ 8 ? RMS, both channels driven 500 watts x 2 @ 4 ? RMS, both channels driven 1000 watts x 1 @ 8 ?, in bridged mode Circuitry designed by legendary John Curl High bias Class A/AB operation 60 amperes peak current per channel Stable with speaker impedance dips to 1.5 ? Balanced inputs with discrete circuits CHK Infinium, custom 5-way speaker binding posts Gold-plated RCA input & loop output jacks Direct-coupled signal path, no capacitors or inductors DC Servo and relay protection circuits AC turn-on inrush surge protection with relay bypass JFET input stage, MOSFET driver stage 16 beta-matched 15 ampere, 60 MHz bipolar output transistors 1.3 kVA shielded toroid transformer w/ independent windings for each channel Independent power supplies for input stage, driver stage and output stage 108,000 µF filter capacitors for output stages Full power is rated all the way down to 5Hz for unrestricted low-end bass Harris hyper-fast soft-recovery bridge diode rectifiers Automatic turn-on by 12 V trigger or audio sensing 4 rack space chassis with rear carry handles Rack mount hardware is included Item is used in great condition, some very minor marks can be seen on a very close inspection, please see posted images. It is a 9 out 10 at least. The pictures are showing the actual product the buyer is getting. International buyers are responsible to pay for the applicable importing fees and duty if it applies. Thank you for looking. Return Policy: due to the extreme size and weight of the unit I do not accept returns on this item. I guaranty that the unit is in good working condition, no humming or any other noises coming from this amp.

Up for sale is this Parasound Halo A21 2-Channel Silver Power Amplifier. Dimensions: 20 Deep X 18 Wide X 8 High. Includes owners manual & power cable. Will be professionally packed & shipped with insurance and signature required. This amplifier was purchased from an authorized Parasound dealer. It was purchased new and there has only been one owner.It was installed in a small home theater designed by Anthony Grimani from PMI (Performance Media Industries).It was used infrequently and driven very lightly due to being installed in a small theater.The theater was temperature controlled to 72 degrees Fahrenheit, 24/7/365, with no windows or damaging sunlight.The theater, and the entire home, were smoke-free, pet-free, and child-free.The amplifier is in excellent physical, electrical, and acoustic condition.Please review the included photos.Specifications:Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect Coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel100,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks; ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger out4u Chassis, carry handles, rack mounting adapter includedImportant Note: The excellent condition of this amplifier has been carefully documented and photographed.You should only purchase this amplifier if you are a serious buyer who knows exactly what is being sold.Please do not view this as an opportunity to “kick the tires” to see if you like Parasound amplifiers.Do yourself a favor and skip this item if you are not sure, or if you possibly have other motivations.Other Gear from this Theater:All of the components from this theater are being sold by QuikDrop on Ebay:1 - Parasound Halo A51 5-Channel Power Amplifier2 - Triad Gold Series In-Room LCR Speakers - Black1 - Triad In-Wall Gold/6 LCR Speaker - Black4 - Triad In-Room On-Wall Silver Subwoofer - Custom Designed by PMI4 - Triad Gold Series On-Wall Surround Speakers Bipole – BlackThe availability of these items is subject to change over time and this list will not be updated *****NO P.O. BOXES***** Local Buyers Must Choose Local Pickup At Checkout And Pay In Person At Our Store. **Please understand we are a 3rd party seller who operates an actual business providing this service for our consignors. These are not our personal items where we can afford to offer free shipping. Our flat shipping rates include shipping charges to your location, all packing materials and handling and packing, insurance, delivery confirmation. We take pride in our shipping. We strive to pack them sometimes beyond shipping guidelines so we know and you can feel secure they will arrive to you safely. I pack your items like I would want my stuff to be packed, safe and sound** NOTE: We get a lot of emails and we will answer them as the order they are received. Please see photos for details! Please visit our store! FEEDBACK IS GIVEN when your transaction is complete and is left for us we will automatically give feedback once positive feedback is received. US BIDDERS: We ship through UPS or USPS depending on the weight and size of the item. Be confident your package will arrive safely! Item Number: 4894-33 SKU: 2500 Condition Description:

For bid is an open box Parasound A21+ Power Amplifier with 300W (8 ohm) and 500W (4 ohm). Condition is essentially new. Only taken out to be tested. This is a high-end great quality sound quality pure A/AB power amplifier. Features: 300 watts x 2 @ 8 ? RMS, both channels driven500 watts x 2 @ 4 ? RMS, both channels driven1000 watts x 1 @ 8 ?, in bridged modeCircuitry designed by legendary John CurlHigh bias Class A/AB operation60 amperes peak current per channelStable with speaker impedance dips to 1.5 ?Balanced inputs with discrete circuitsCHK Infinium, custom 5-way speaker binding postsGold-plated RCA input & loop output jacksDirect-coupled signal path, no capacitors or inductorsDC Servo and relay protection circuitsAC turn-on inrush surge protection with relay bypassJFET input stage, MOSFET driver stage16 beta-matched 15 ampere, 60 MHz bipolar output transistors1.3 kVA shielded toroid transformer w/ independent windings for each channelIndependent power supplies for input stage, driver stage and output stage108,000 µF filter capacitors for output stagesFull power is rated all the way down to 5Hz for unrestricted low-end bassHarris hyper-fast soft-recovery bridge diode rectifiersAutomatic turn-on by 12 V trigger or audio sensing4 rack space chassis with rear carry handlesRack mount hardware is included Official Parasound Website: https://parasound.com/products/a21?srsltid=AfmBOop5BbqHcKFrtEOqXTRSPmN4fgl4SSmjxtfMODDZDqf5ybLQOq30

PARASOUND A21+ PURCHASED FROM SAFE AND SOUND JUNE 2023 LIGHT USE EXCELLENT SHAPETHIS AMPLIFIER IS A BRUTE AND CAN POWER ANY SPEAKER. 300 X 2 @ 8 OHMS500 X 2 @ 4 OHMS 2 OHM STABLE A / AB BIAS SHIPS IN PARASOUND DOUBLE BOX WITH CORDAND MANUAL

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 I know John Curl personally, and this amp if one of his best achievements in the science and art of amplifier design. Unfortunately, the A21+ was not photographed in the book, although there is a specific thank you to Richard Schram and Parasound in the book for their help with the project. Current price for the Parasound Halo A21+ power amplifier is $4195. This amplifier is in mint condition. And yes, this really is a incredible sounding power amplifier (on the Stereophile Recommended Component List, Class A 2023), which is why I choose it for this project. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Buyer to pay exact UPS or FEDEX ground insured shipping cost (signature required) with insurance and delivery confirmation to any continental US address (all others exact charges). ONLY US and Canada buyers on this listing please- NO EXCEPTION. Sold as is...All sales final (no return). Thanks for looking!!!

Parasound A21+ top cover for sale. Item in good overall condition with minor scuff marks. This auction is not for the amplifier but just the top cover.

Parasound 2 Kanal Endstufe Halo A21.Wenig gebrauchte Endstufe mit viel Leistung, sehr guter Zustand aus Nichtraucherhaushalt. Genaue Daten im Netz auf der Parasound Homepage. Nur wenige Gebrauchsspuren. Privatverkauf ohne Garantie,Gewähr,keine Rücknahme und keine Sachmängelhaftung. Mit Kauf erkennen Sie dies an. Versand möglich auf Risiko des Käufers. Kosten Versand ca. 30 Euro. Versand ins Ausland möglich, bitte vor Kauf anfragen, danke.

PARASOUND A21+ PURCHASED FROM SAFE AND SOUND JUNE 2023 LIGHT USE EXCELLENT SHAPETHIS AMPLIFIER IS A BRUTE AND CAN POWER ANY SPEAKER. 300 X 2 @ 8 OHMS500 X 2 @ 4 OHMS 2 OHM STABLE A / AB BIAS

PARASOUND A21+ PURCHASED FROM SAFE AND SOUND JUNE 2023 LIGHT USE EXCELLENT SHAPETHIS AMPLIFIER IS A BRUTE AND CAN POWER ANY SPEAKER. 300 X 2 @ 8 OHMS500 X 2 @ 4 OHMS 2 OHM STABLE A / AB BIAS

Parasound Halo A21 Stereo Power Amplifier THX Certified 2X250 watts, black – used Manufacturer: Parasound Halo Model: Halo A21 Amplifier Description: Stereo Power Amplifier, 2x250 watts, black Unit is in beautiful condition, works as it should, no issues at all. I just upgraded to a newer Halo 21+. Power cord and original packaging included. Unfortunately, I cannot locate the manual, but it can be download. Features: Circuitry designed by legendary John Curl THX Ultra2 certified High bias Class A/AB operation Balanced inputs with discrete circuits and XLR connectors Direct Coupled - no capacitors or inductors in signal path Complementary MOSFET driver stage and JFET input stage 16 beta-matched 15 amp, 60 MHz bipolar output transistors 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel 88,000 µF power supply filter capacitance DC Servo and relay protection circuits AC present, channel status, high temperature indicators Heavy-duty 24k gold-plated 5-way speaker terminals Gold-plated RCA input jacks; ground lift switch Auto turn-on by 12v trigger or audio signal, 12v trigger out Specification: Continuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ? Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: balanced 16 V rms< 0.04 % Slew rate: > 130 V/µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k ? unbalanced; 66 k ? balanced S/N ratio: 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Voltage: 110V - 120V Dimensions: 17-1/2 w x 7-5/8 h x 20 d, 7 h without feet Net weight: 60 lb. Specification: See posted pictures of factory data sheets for details. Item is used in good working and physical condition, unit will be shipped in original packaging, factory double boxed as shown on the images. Accessories included: power cord as shown on the pictures. The pictures are showing the actual product the buyer is getting. International buyers are responsible to pay for the applicable importing fees and duty if it applies. Thank you for looking. Return Policy: due to high cost of shipping of this unit I do not except return on this item.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Parasound Halo A21 Stereo Power Amplifier Product SKU: 54554 Voltage: 120V # of Owners: 2 Service History: None Serial Number: 07014 Age: Unknown Tobacco Exposure: No MSRP: $2495 Cosmetic Description: Excellent condition with no notable blemishes.  What is Included: Amplifier, Manual, Rack mounting hardware, Two trigger cables, Power cable, Factory packaging Other Notes: Bottom line: I could not only recommend the A 21 enthusiastically to audiophiles on a budget (what a combo it would make with the Maggie 1.6QRs!), but could live with it myself—in a system that costs fifty times what it does. -Jonathan Valin, The Absolute Sound Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $85- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Parasound Halo A21 stereo power amplifier. Amp is in excellent cosmetic and operational condition. This amp sounds amazing. Includes original power cord and rack mounting brackets. Please check out pictures for overall condition. The amp has no major marks or scratches I can find. Will be shipped in the original factory double box.

Parasound 2 Kanal Endstufe Halo A21.Wenig gebrauchte Endstufe mit viel Leistung, sehr guter Zustand aus Nichtraucherhaushalt. Genaue Daten im Netz auf der Parasound Homepage. Nur wenige Gebrauchsspuren. Privatverkauf ohne Garantie,Gewähr,keine Rücknahme und keine Sachmängelhaftung. Mit Kauf erkennen Sie dies an. Versand möglich auf Risiko des Käufers, kein Versand ausserhalb BRD. Kosten Versand ca. 30 Euro. Versand ins Ausland möglich, bitte vor Kauf anfragen, danke.

Parasound Halo A21+ Stereo Power Amplifier (Black) 2x300W 8 Ohm in absolutely new condition with full package and accessories. 2 pcs are available. One unit is still sealed. The second was opened for a short demo but it is also absolutely brand new. Retail price: 5999 euro for each. Shipping via courier on the pallet. Transit time 5-7 working days. Offers are welcome. Changes from the original A 21?A 21+250 ? 300 Watts (8?)400 ? 500 Watts (4?)750 ? 1000 Watts (bridged)Filter cap: 88,000 uF ? 108,000 uFS/N: 112dB ? 115 dBTHD (at full power): 0.2% ? 0.1%Crosstalk (20kHz): 63dB ? 70dBTransformer size: 1.2 kVA ? 1.3 kVAWeight: 60 LB ? 71 LBRefined Halo cosmetic with aluminum end caps & gold highlightsUpdated rear panel with heavy duty speaker terminals from JC 5Upgraded internal gold on gold audio connectionsUpdated auto turn on circuitAll Features300 watts x 2 @ 8 ? RMS, both channels driven500 watts x 2 @ 4 ? RMS, both channels driven1000 watts x 1 @ 8 ?, in bridged modeCircuitry designed by legendary John CurlHigh bias Class A/AB operation60 amperes peak current per channelStable with speaker impedance dips to 1.5 ?Balanced inputs with discrete circuitsCHK Infinium, custom 5-way speaker binding postsGold-plated RCA input & loop output jacksDirect-coupled signal path, no capacitors or inductorsDC Servo and relay protection circuitsAC turn-on inrush surge protection with relay bypassJFET input stage, MOSFET driver stage16 beta-matched 15 ampere, 60 MHz bipolar output transistors1.3 kVA shielded toroid transformer w/ independent windings for each channelIndependent power supplies for input stage, driver stage and output stage108,000 µF filter capacitors for output stagesFull power is rated all the way down to 5Hz for unrestricted low-end bassHarris hyper-fast soft-recovery bridge diode rectifiersAutomatic turn-on by 12 V trigger or audio sensing4 rack space chassis with rear carry handlesRack mount hardware is includedAvailable in silver or black

Parasound Halo A21 2ch power amplifier. Circuitry designed by legendary John Curl THX Ultra2 certified High bias Class A/AB operation Balanced inputs with discrete circuits and XLR connectors Direct Coupled - no capacitors or inductors in signal path Complementary MOSFET driver stage and JFET input stage 16 beta-matched 15 amp, 60 MHz bipolar output transistors 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel 88,000 µF power supply filter capacitance DC Servo and relay protection circuits AC present, channel status, high temperature indicators Heavy-duty 24k gold-plated 5-way speaker terminals Gold-plated RCA input jacks; ground lift switch Auto turn-on by 12v trigger or audio signal, 12v trigger out Continuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ? Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: balanced 16 V rms < 0.04 % Slew rate: > 130 V/µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k ? unbalanced; 66 k ? balanced S/N ratio: 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Voltage: 110V - 120V Dimensions: 17-1/2 w x 7-5/8 h x 20 d, 7 h without feet Net weight: 60 lb.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Parasound Halo A21 Stereo Power Amplifier; Silver Product SKU: 49003 Voltage: 120V # of Owners: Unknown Service History: None Serial Number: 05390 Age: Unknown Tobacco Exposure: No MSRP: $2000 Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a nick on the top edge of the faceplate. The front-right corner of the top surface has a scuff as well. This item does show a few blemishes but is attractive overall and has been well cared for. What is Included: Amplifier, Manual, Rack mounting hardware, Two trigger cables, Power cable, Factory packaging Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $105- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Parasound Halo A21 Power Amplifier - Black I have had this amp for a few years and has been used at most once every couple months to power my front channels. The amplifier has remained in my rack since purchased. There are very light scratches on a few of the fins from the initial placement of the amp in the rack, but is sonically perfect. Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect Coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel88,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks; ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger out4u Chassis, carry handles, rack mounting adapter includedContinuous power output:250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven750 watts RMS x 1, 20 Hz - 20 kHz, 8 ?Current capacity:60 amperes peak per channelPower bandwidth:5 Hz - 100 kHz, +0/-3 dB at 1 wattTotal harmonic distortion:< 0.2 % at full powerIM distortion: balanced 16 V rms< 0.04 %Slew rate:> 130 V/µsecondDynamic headroom:> 1.5 dB Interchannel crosstalk:> 80 dB at 1 kHz;> 63 dB at 20 kHzInput sensitivity:1 V for 28.28 V, THX Reference LevelInput impedance:33 k ? unbalanced; 66 k ? balancedS/N ratio:112 dB, input shorted, IHF A-weightedDamping factor:> 1100 at 20 HzVoltage:110V - 120VDimensions:17-1/2 w x 7-5/8 h x 20 d, 7 h without feetNet weight: 60 lb.

Parasound Halo A21, 2/1 Halo Power Amplifier-Class A/AB250Wx2 or 750Wx1 @ 8?, Excellent Condition We recently emptied out yet another Consumer Electronics Collectors Home! Once again what we found was of treasure trove of new, vintage, used electronics products, and installation parts they had collected over the years. Our find is your treasure. This product is one of those treasures.The legendary John Curls creation has stood the test of time...and she sounds and looks as nice as the day it came out of the box!With class A/AB design, Mr Curls A21 impresses even the most finicky audiophiles: 250w x 2 or 750W x 1, 20-20K Hz, .2% THD, at 8?.-all channel driven!We have sold many these over the years...they never stay posted long...and they are always a buyers favorite. This one one nicest condition we have seen! The former owner upgraded this amp to a multi channel Parasound JCS5 for his new homes home theater room.Note: We will use a new double walled shipping box wrapping the amp in 1 bubble wrap with multiple layers, entombing on all surface areas the amp in 2 Styrofoam, We make sure this amp gets to you intact! We are known for our packing....check out our feedbacks! Dimensions: Width: 17 1/2 Panel height: 7 or with feet: 7 5/8 Depth: 19 1/8Fine Print that is not that fine:Condition: Pre-Owned in Excellent condition. Face is clean and LEDS are bright and shiny. This amp was loved!Sorry no original box, packing, or manual (easily found on line for free on the Parasound site). Comes with heavy duty power cord. Tested: 100% audio and function tested. We track serial numbers and hide ID marks on all products to keep our costs down and your prices, too!WHY BUY NEW ELECTRONICS- SHIPPING POLICY: If your total purchase is above $300 we will send insured and signature required. Please make sure to have someone able to sign for the package at time of delivery. WBNE will ship your purchase using the shipping service of our choice that will best get your package to you the fastest and safest. Please contact us BEFORE you buy if you need specialized shipping needs. NOTE: eBay is contractually bound with FedEx that once a package leaves the Seller no alterations can be made for a change of delivery address or change of pickup instructions. Please make sure the address you choose is where you want the product to go! Let the pictures tell the story and our feedback give you the confidence to buy and bid freely. Visit and follow us at our eBay store whybuynewelectronics...where you will always find gently used, rep samples, refurbished, and new discontinued electronics at a fraction of what they originally sold for! WHY BUY NEW ELECTRONICS- CUSTOMER SERVICE POLICY: Our goal is to be more than another product post on eBay. Once you receive your product if you have technical questions, product issues, or need assistance in any way please message us 1st through eBay…we are happy to help. Check the feedback! Our customer service is highly rated. We love help our customers and want you to visit our store first when you are looking for electronics and related items again and again! WHY BUY NEW ELECTRONICS- REFUND POLICY: Products come with a 30 day refund/satisfaction policy from the date in which you receive the goods unless otherwise denoted in the post. We want you happy! For products to qualify the seller will pay for the shipping to return the product. Final acceptance of the return is at the sole discretion of the seller and must arrive in the same condition as when it was sent to the buyer and without damage, alteration, or modification. If you buy a factory fresh sealed box and return it open and used, you will be charged a percentage of such. It will be deducted from the selling price, as it is not being returned in the same condition as it was received unless product is defective. WHY BUY NEW ELECTRONICS tracks serial numbers and hide ID marks on products to assure each return is the product we sent to the buyer. This keeps our costs down and saves you money when you buy from us. Some products are sold “As Is - for parts and not working” and will be listed as such in the post. WHY BUY NEW ELECTRONICS- SALES TAXES POLICY: EBAY now automatically collects and pays directly to each state the appropriate applicable taxes (if mandated by the state) that are now required to be collected. WHY BUY NEW ELECTRONICS- PRODUCT TESTING GUARANTEE: All “Used” product is tested and or verified functioning prior to posting unless noted otherwise in the “Fine print that is not so fine” section of each product post. California Prop 65 Warning: This product may contain one or more chemicals known to the State of California to cause cancer, or birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov. New products are not tested prior to shipping as our 30 days refund/satisfaction policy is in effect. Follow and “Like” us on our new facebook page with CE industry news, new products information, and the featured hot pics of the week on our ebay store! Click the link below and “Like” us:www.facebook.com/whybuynewelectronics