This is a 1988-vintage NAD Monitor Series Power Amplifier 2100 POWER Envelope that is completely tested and is fully functional. It is very clean, inside and out. The original 1988 MSRP was $398, which is the equivalent of $1,055 in 2025. This was a middle-of-the-line NAD amplifier in the 1988 line. It was very conservatively rated at 50 WPC into 8 ohms at .03% THD, but it can put out 150 WPC into 8 ohms in bridged mono mode. NAD stands for New Acoustic Dimension, and the company was founded in 1972. This is how NAD described this model in the original sales brochure: “We are a leading producer of affordable amplifiers that produce the full measure of dynamic headroom required by digital recordings. The best buy 2100 Power Amp is remarkable even by NADs standards. While its rated power for continuous test tones is 50 watts channel, its effective power output for music is an impressive 200 to 330 watts per channel (depending on speaker impedance). Thanks to NADs unique Power Envelope circuitry, this high level of tone-burst power is available not just for brief transients but for the full duration of complex chords and musical climaxes. Yet the 2100 has the same modest size and low price as other 50 watt amplifiers with 40,000 µ F of power-supply capacitance, the 2100 delivers peak currents as high as 30 amperes to cope with the most complex and reactive loudspeaker impedances. In addition to power and control, the 2100 has delicacy; with a signal-to-noise ratio of 117 dB, it faithfully reproduces every subtle strand of low-level musical detail and back-ground ambience. With its high-speed output stage and ultra-low distortion, the clarity of its sound must be heard to be appreciated. You can use either wide-hand inputs or filtered inputs (112Hz to 80kHz) that strip off interference, prevent intermodulation distortion, and protect your speakers from unwanted subsonic signals. The filtered inputs also have input- level controls that match your preamps output, balance levels in bi-amped or surround systems and allow you to bypass your preamp and connect a line level source directly to the power amp. Heavy-duty binding-post terminals provide secure low-resistance connections for all types of speaker wire. If you need more power, a rear-panel switch combines the amplifiers two channels to form a mono amp rated at 100 watts continuous and 500 watts tone-burst output. The efficiency and compact size of the 2100 also make it a perfect choice for hi-amplifying speakers. (Suggestion for a high-definition audiophile system: instead of buying exotic and expensive speaker cables to stretch across the room, install a bridged or bi-amped 2100 directly behind each speaker, connected with ultra-short wires.” Dimensions: 17.1” W, 4.25” H, 15” D, 21lbs. This NAD 2100 is serial #T21013305X. The inspection date on this unit is July 12, 1991, so it was a late production unit. I am passionate about vintage amplifiers. I take the time to test every single function of the amp by connecting it to a good preamplifier and connecting speakers. Doing this lets me listen to how the amplifier actually sounds. I check every single switch, control and button to confirm that they work as intended. After the initial assessment, I thoroughly clean the outside and inside of the tuner and clean every potentiometer and switch with CRC QD Electronic cleaner. I also check and adjust the amplifier idle current to the proper value from the Service Manual. This particular NAD 2100 is in very good shape cosmetically, as you can see from the photos. Functionally, all of the LEDs, displays and buttons work as designed. Most importantly, it sounds great. It is missing the purely cosmetic green outer portion of the power button. It is hard to believe that it is roughly 34 years old! The amplifier will be wrapped with plastic cling wrap and bubble wrap, before being placed into a sturdy box with appropriate packing material. I dont overcharge for shipping. This is sold as is due to being a vintage electronic item. Please look at the photos and ask any questions before buying. Thanks for looking!

All the functions have been tested and are in working order. Purchase includes the amplifier as shown only. The amplifiers green power button cap is missing but it still works fine. The amplifier has some scuffs, scratches, a minor dent on top and other signs of use. No other accessories are included unless shown in the photos.Power output: 50 watts per channel into 8? (stereo), 150 watts into 8? (mono)Frequency response: 3Hz to 100kHzTotal harmonic distortion: 0.03%Damping factor: 100Gain: 27 dBInput sensitivity: 0.85VSignal to noise ratio: 117dBSpeaker load impedance: 2? (minimum)DIMENSIONS17 x 14.5 x 4.15 (Length x Width x Height)Weight: 21 lbsINPUTSStereo Normal In L/R x1 (back)Stereo Lab L/R x1 (back)OUTPUTSSpeaker Output A L/R x1 (back)Speaker Output B L/R x1 (back)AC Outlet x 2 (back) Although this amplifier has 50 watts per channel, it is very loud and powerful. The sound is very musical and clean.

Very good working condition---no refunds returns or international shipping

This system is in very good physical and working condition. As seen in pictures, there are some minor signs of wear on the units. This system has been tested and all functions work as intended. All channels and input/output have been checked and are operational. Please see video. The video does not do justice to the sound quality of the system. I can assure you that I had that system turned up loud when doing the video. Tested on a pair of Bose 401, rated up to 200watts. This is a very good sounding system, and I have no doubt that whom ever gets this system will enjoy it thoroughly . Plenty of power! As seen in pictures, I included a picture of the shipping dimensions and weight of this item. Please reach out directly for an exact shipping quote. Things to note: Missing power button ( I have a replacement one and will send with the system). Missing 2 audio jack caps (see pictures). NO REMOTE Please reach out with any questions before making a purchase. Thanks!

Just missing its green power button but other than that it works great. Enjoy.

Amplify your audio experience with this NAD 2100 Monitor Series Power Amplifier. With its gray color and sleek design, this two-channel amplifier features stereo L/R RCA and two-channel RCA audio inputs, allowing you to connect to your favorite audio devices. The banana speaker jacks provide a seamless connection to your speaker system, while the four outputs ensure high-quality sound. This NAD 2100 Power Envelope is perfect for any home audio setup, enhancing your music and movie experience.

Hallo, ich verkaufe hier aus Nachlass (gepflegter Nichtraucherhaushalt) einen Klassiker der HiFi Geschichte! NAD Endstufe Monitor Serie 2100 inkl. Netzkabel Hochwertige/kraftvolle HiFi Stereo/Mono Endstufe mit 2x 70 Watt (Stereo) 2x 150 Watt (Mono) Sinusleistung. Fantastischer Klang, mit schöner räumlicher Stereo- bzw. Stimmenwiedergabe und tollem Tiefbass. Musikalischer Endstufenklassiker mit hochwertigen Bauteilen! Optischer/technischer Zustand:Ich habe das Gerät von außen gereinigt, Tasten und Regler zusätzlich mit Sterillium desinfiziert. Innen ebenfalls gereinigt, bzw. kurz entstaubt und die Schalter und Potisvorsichtshalber mit Kontaktspray eingesrüht. Die Front und das Gehäuse sind im sauberen Topzustand, nur paar minimale sichtbare Gebrauchspuren, siehe Bilder! Abschließend nochmal alles getestet, die tolle HiFi Endstufe funktioniert und klingt einwandfrei,alle Potis und Schalter funktionieren ohne Probleme! Insgesamt sehr sauberes Gerät, Technisch zu 100% einwandfrei, mit nur minimal erkennbaren Gebrauchspuren! Technische Daten: 2 Engänge - 1 Ausgang2x 70 Watt Dauer-Sinusleistung an 8 Ohm1x 150 Watt (Mono) Dauer-Sinusleistung an 8 Ohm2x 250 Watt an 4 Ohm DynamikleistungSoftclipping Schaltung Abmessungen: 435 x 106 x 385 mm Gewicht: 9,5Kg! Bitte schaut meine anderen Angebote und Bewertungen an, ich verkaufe einwandfreie/geprüfte und gereinigte Geräte! Des Weiteren werden die Geräte/Artikel aufwendig und sicher verpackt, siehe Bilder und Kommentare meiner zufriedenen Käufer! Ich gebe 12 Monate Gewährleistung auf Gebrauchtgeräte! For international bidders: No shipping to Great Britain and other countries! Only to the European Union!

Unit in good condition No scratches or cosmetic issues No dents Face in perfect condition Brand Nad 2100 Outputs work Nice sound No operation issues Unit only No other accessories included Fast 1 day handling time

NAD 2100 Monitor Series Power Amplifier Power Envelope. Tested and works. See photos for details.

Power button is missing. The A right speaker output is broken and I couldnt get any sound of it although rest of speaker outputs are working fine. The iPad and speaker on the video are NOT included. Sold as is

First one under turntable This amplifier is in pristine beautiful condition. It has been cleaned and treated to get the best sound quality with no crackles when knobs are adjusted. The sound quality is clean, clear, smooth and robust. It fills a 2000 Square foot room fully at 1/8 volume, and when demanded can clear the room at full volume. You will need a powerful set of stereo speakers to handle this amplifiers full output. If any issues I will work with you to resolve them. I fully stand behind the equipment I service. It will give you many years of reliable quality service with the modern parts replaced. I also downloaded a manual to be sent with the amplifier.

NAD Monitor Series 2100Power Envelope Stereo / Mono Power Amplifier Endstufe Technischer Zustand einwandfrei, voll funktionstüchtig Das Gerät wurde überholt Optischer Zustand mit Gebrauchsspuren innen und außen sehr sauber Technische Daten Power output: 50 watts per channel into 8? (stereo), 150 watts into 8? (mono) Frequency response: 3Hz to 100kHz Total harmonic distortion: 0.03% Damping factor: 100 Gain: 27 dB Input sensitivity: 0.85V Signal to noise ratio: 117dB Speaker load impedance: 2? (minimum) Dimensions: 435 x 108 x 381mm Weight: 9.52kg hifiengine.com

NAD Monitor Series Power Amplifier 2100 Power Envelope. Zustand: Gebraucht. Versand mit DHL Paket bis 10 kg.

Amplify your sound with this NAD 2100 Monitor Series Power Amplifier. With its sleek black design, this 2-channel amplifier features stereo L/R RCA audio inputs and banana speaker jacks for audio outputs. It also has 4 outputs and 2 inputs, making it perfect for any home audio setup. The NAD 2100 is a reliable and powerful choice for anyone who wants to enhance their music listening experience.

NAD 2100 Monitor Series Power Amplifier Power Envelope. Condition is Used. Shipped with UPS Ground.

NAD 2100 Power amplifier Tested Tested and works Shipping rates apply to continental United States onlyBuyers outside are subject to different shipping rates

This NAD 2100 Monitor Series Power Amplifier has been thoroughly tested and is ready for use in your home audio setup. With 2 channels and 2 inputs, this black amplifier is versatile and can handle stereo L/R RCA audio inputs. The amplifier has 4 banana speaker jacks for audio outputs, making it perfect for anyone who wants to enhance their home audio experience. The NAD brand is known for quality and this model lives up to their reputation. The amplifier is in excellent working order and is sure to provide years of outstanding sound quality.

Item: NAD 2100 Black Stereo L/R RCA Monitor Series Power Amplifier With Cord Condition: Good - shows some signs Functionality: Functionality not tested Accessories included: Cord All net proceeds will support The Salvation Army - Adult Rehabilitation Centers. Thank you for your support! Customer Service Hours: Monday - Friday 8:00am - 4:00pm EST Updated Shipping Policy Starting April 1, 2023 Flat-rate Shipping Service To be eligible for combined shipping, all invoiced items must fall under our flat-rate shipping policy.When orders are combined under the flat-rate shipping policy, larger items will be charged $14.99 for the first item and an additional $6 shipping fee per additional item. Smaller items will be charged $9.99 for the first item a $1 shipping fee will be charged per additional item.Requests for combined shipments must contain less than 20 items per shipment and cannot include items that are sold with calculated shipping. These items include large or bulky items, instruments, artwork, or framed items.Calculated Shipping Service Please note that items that are sold with calculated shipping cannot be combined with other items in the same shipment. This is because these items may include large or bulky items, instruments, artwork, or framed items, which require separate shipping arrangements.Thank you for your understanding.

Tested, it works.. One speaker post has been sheared off of the B speaker array. A wire with a heavy duty alligator clip has been installed, that works fine in its place. See my other listings for matching preamp/tuner. Ships to lower 48 only for rate quoted

This NAD 2100 Monitor Series power amplifier is a top choice for audiophiles seeking exceptional sound quality. With two channels, it delivers high-fidelity audio for your home audio setup. The amplifier is designed with NAD's renowned attention to detail, ensuring that it performs at its best at all times. This amplifier is perfect for powering your home audio setup, delivering rich, clear sound that will fill your room with your favorite music. Its sleek design ensures that it looks great in any room, and it's easy to set up and use. Whether you're a seasoned audiophile or just starting out, this NAD 2100 power amplifier is an excellent choice for anyone who wants to enjoy high-quality audio at home.

NAD 2100 + Monitor Series, schicke, große Endstufe mit großen LED-Metern Voll funktionsfähig Optisch guter, gebrauchter Zustand, Gebrauchsspuren, Kratzerchen vorhanden, leider ist die linke obere Ecke beschädigt! Vom Einschalter fehlt die Knopfabdeckung, lässt sich aber einwandfrei bedienen, siehe Bilder. Zustand wie abgebildet siehe Bilder. Bitte beachten Sie die Bilder, diese sind Teil der Artikelbeschreibung. Lieferumfang wie abgebildet Ohne weiteres Zubehör! Keine Fernbedienung! Keine Anleitung! Versandkosten beziehen sich auf den Versand innerhalb Deutschlands Internationale Versandkosten bitte vor dem Kauf erfragen! Worlwide Shipping!!! Please ask for the shipping costs to your Country : ) !

NAD Model 2100 Monitor Series Power Amplifier Audio Classics, Ltd. This amplifier is tested and working. Tested and Fully Functional Face looks good. Top cover has some rust/tarnish please see photos. Thanks for looking. Model / Serial 2100 / T21012867X Contiguous US Lower-48-State shipping, insurance and handling charges for this item will be $45.00. Please submit all inquiries regarding this item through the Ebay messaging system and ask All questions before committing to purchase. We will only ship to your Ebay/Paypal/Credit-Card Verified or Confirmed shipping address. We will not under-value this item or otherwise falsify our invoices or shipping documents for any reason.This item is available for sale only through Ebay.________________________________________________________________________________________________________

WITH OVER 24,000 POSITIVE FEEDBACK BID WITH CONFIDENCE!NAD Monitor Series Power Amp Amplifier 2100 For sale is a NAD Monitor Series Power Amp Amplifier 2100 - WORKS GREAT !! This Power Amp is in very nice condition. This amp is very clean inside, and looks like it was well maintained. There is minor marks due to handling, but overall in great condition. Dont pass up on this great deal nicest one Ive seen online !!Please see photos to make your own evaluation. Thank you for viewing!The item is also in overall good cosmetic condition as shown. Please see pictures to make your own cosmetic appraisal. All pictures are of actual piece(s). All piece(s) as shown in the pictures above are included as shown.Be sure to add us to your favorites list!SHIPPING INFORMATION:Standard USPS Shipping, FedEx Home and Ground Delivery Method CalculatedINTERNATIONAL SHIPPING:We ship worldwide. Buyers are responsible for customs fees or related fees. Delivery times may very for International shipping 6-10 business days for Priority Mail and 4-5 business days for Express International Mail.PAYMENT:Shipped Items: Tax: IL residents must pay 7.5% sales tax. All items shipped USPS Priority includes Insurance. USPS First Class Mail items sold for over $20.00 automatically have insurance calculated into the shipping cost as a handling fee. First Class Mail Items sold for under $20.00 will not be insured during shipping unless the buyer contacts us. Items without insurance are not eligible for our return policy. We encourage all auctions to be paid within 3 days after action ends. When free shipping is offered, free shipping only applies to the lower 48 states.Local Pickup: Local pickup is available, we accept cash on pickup or payment by Ebay. Local Pickup requires an additional $3 fee, and invoice will be sent through First Class Mail for each purchase. Tax: IL residents must pay 7.5% sales tax. Please know local pickup items must be paid within 3 days. Transactions will be cancelled after 7 days of non-payment. Local pickup items that have been paid for must be picked up within 7 days of auction ending. Any item picked up after 7 days of the auction ending will be subject to a storage fee based on size. Any item not picked up within 14 days of the auction ending will be forfeited without a refund.RETURN POLICY:Trader Jons does not accept returns for non-defective items. You must return an item in the same condition as it was received, not used or altered in any way. If your item is defective or not as described please contact us so we can resolve your issue. If item is returned opened or in not new condition more then 20% restocking fee may apply.Trader Jons in Round Lake Beach Local Pickup Hours:Please e-mail us through eBay to make an appointment.Be sure to add us to your favorites list!Note: Trader Jons is closed Mondays, therefore next day shipping paid for on Sundays will not go out until the following Tuesday.