Take your home audio system to the next level with this modified Nobsound E6 Tube Preamp. This preamp boasts custom upgrades and features direct heated triode vacuum tubes for superior sound. With class A amplifier topology, this preamp offers exceptional audio quality that usually costs much, much more. Modifications include replacing the stock Chinese tubes with new old stock (NOS) Russian originals and replacing the original electrolytic capacitors with Dayton Audio audio grade film capacitors. Here is what this setup would cost you if you did it yourself (plus an hour to change the caps): - Nobsound E6: ~$50 on AliExpress - NOS Russian tubes: ~$12 on eBay - Film capacitors: ~20 on PartsExpress

One set of LUX SQ7760s Tube Integrated Amplifier6BQ5 push-pullWith Phono input8 and 16 ohm outputThe amplifier has been service withcontact cleanings;worned components replacements;tubes replacements;Modified with another model of output transformer, OH18-10;rewired to ultralinear topology;cancelled overall feedback;disabled the REV function;Tested output clean power on 8 ohm load is around 6W.Sound test good;Tone adjustment functionality good;Balanced adjustment functionality good;See pictures for cosmetic conditions.Very nice vintage Japan tube amplifier,It is too old and modified, so it is sold as is or for parts.Tubes: NEC 6BQ5 x4, PSVANE 12AX7 x4, Matsushita 12AX7 x1

Linear Tube Audio MicroZOTL MZ2 headphone amp designed by legendary engineer David Berning. Comes with upgraded LPS power supply for added depth of soundstage and silent background. Unit features upgraded Tung-Sol 6sn7GTB and Tung-Sol 12AT7 6201 tube compliment; a nice step up in Sonic’s from stock Chinese tubes. Amp works perfectly… a few superficial marks on the face. The plexiglass top is near flawless showcasing the intricacies of the design. Cosmetics: 8.5/10, Functionality: 10/10. My favorite thing about this unit is its versatility in that it has two speaker jacks, allowing it to serve as a low wattage power amp (1 wpc). I have used this to drive my vintage Klipsch Forte 2s with stunning results. Filled my entire home with lush, tubey goodness…tremendous instrument separation. Ultimately what sets this amp apart is the DEAD-SILENT background. It’s just non-existent; that’s the transformer-less technology for ya…a stunning achievement and why this design received the reviews it did. I was using this MZ2 in my office as a headphone amp while also driving a pair of ADS L300C (88 db?, hardly high-efficiency) and it still could drive you out of the room. This unit is now discontinued and will become a collectors item; the only reason I’m passing this along is my wife and daughter surprised me with an MZ3. Continental US only.

MicroZOTL 2 Headphone Amp & Linear Power Supply & Cables - 6SN7 GTB & 12AT7WA / 6201 Tubes - SN #220 Great Working Condition. Some scuffs, scratches and a few spots front face plate. Tested Thoroughly and Sounds Fantastic! Will ship priority mail with signature required.

Rare, looking to move it for best offer that we can live with. If nothing comes through we will probably just hold it as an investment. Here is a chance to own what is said to be one of only a very small number of Counterpoints magnificent SA-11 preamplifiers. Were hoping it finds its way to someone that appreciates it here in the U.S. but we are willing to ship out of the country as well. Wow! So this is what musical heaven is like! The Counterpoint SA11 is not only the most beautiful sounding line section extant, but is also the most accurate and the most musically truthful - Peter Moncrieff, International Audio Review Cosmetic condition:The face plate and all lettering is in near perfect condition. As shown in the photos, only very light scuffs on the top surface that can probably lightly cleaned to near new condition. All knobs are straight and rotate smoothly. All toggle switches click evenly and solidly into place. Under 4X magnification the RCA connections on the back show no scratching or wear. Side panels are clean and near new condition. Rear is pristine with none of the inputs or outputs showing any signs of being bumped or bent. We cannot find any significant wear, grime or marks to the outside. Overall we can honestly rate it a solid 9+ out of 10. Functionality:If you are considering this control amplifier you know of its famed capabilities. Our testing has been limited to powering it up. We are not qualified to go through the many tests it deserves and like any very fine piece of art or equipment we are not going to take a chance of damaging something that doesnt have any issues to begin (which is our guess here), all appears to be working without issues. When powered on it took about 15 seconds for it to become ready and ALL of the lights came on. With that said if you have ANY concerns we are willing to take this SA-11 to your choice of a Dallas area professional and (at your expense) have them review this SA-11 before you buy it. We are confident it will test fine but need some basic adjustments. In our professional opinion this SA-11 has seen very low use. We are also open to meeting you and allowing a basic plug-in test if you think it necessary. Local pickup is preferred however we will ship securely double boxed, insured and with signature. This sale is not offering returns. As mentioned above we will be happy to have it reviewed at your expense in the Dallas area before you buy and/or perform a local area plug-in test. ShippingWe ship to Hawaii, Alaska and Puerto Rico however there may be additional shipping costs. Please ask. FeedbackIf there is a problem with your purchase please PLEASE allow us the chance to resolve the issue before leaving negative feedback and to earn your highest feedback ratings. DescriptionsAll attempts are made to describe and photograph items as accurately as possible to earn your highest feedback ratings. Please look closely at the photos as they are part of the description.

This eBay listing is for ONE Cary Audio CAD-808 Rocket 88 Tube Amplifier. Used and in excellent working and cosmetic condition. I bought this brand new from Cary in 2003 and it until now has been in storage for the past 10 years. The only blemish I can find is a super small spot of discoloration on the Cary label which is on the power transformer. This amp puts out 20 watts per channel in Triode mode / 40 watts per channel in Ultralinear. I sent it to Cary in 2005 and had it upgraded to utilize the 12BZ7 tubes instead of the 6922 tubes. You can use both 12BZ7s or 12AX7s if youd like... The BZs sound best though. Comes with 2x Electro-Harmonix EL84 tubes, 2x RCA 12BZ7 tubes and 4x Ruby KT88 tubes. As for the output tubes....You can use the EL-34, 6L6, 6550, KT-66, KT-77, KT-88 or KT-90 flavors. The two 1629 Green Eye tubes on the front plate are mesmerizing to watch, They display the power output. The 12BZ7s come with silicone dampers installed. I am going to drop this amp off at Mojotronix for a once-over where it will get a thorough check-up (Pots, Jacks, Contacts, Tube sockets cleaned, Caps checked, Tubes checked, Confirm all components working at spec, Bias the output tubes). I am having this service performed because the amp has sat idle for the past decade AND I want to assure the next owner years of trouble free operation. Comes as shown with the tubes mentioned above and the cable for setting the tube bias. This amp is heavy... 50lbs! I will double box it and use Insta-Pak foam to assure a safe delivery to you. I will pack the tubes in a smaller box and ship them separately. I will give it my 30 day No DOA warranty. Buyer pays $100 S/H via FedEx Ground. Buy with confidence from Esoteric Specialties !

This is a linear amplifier for amateur radio from YAESU. We have opened the package and checked the internal condition, and there seems to be no defective parts. The vacuum tube is also sitting nicely. Operation test We connected a radio and a dummy load, and checked the input and output with a commercial wattmeter. Frequency band 7MHz input 100W output 500W Frequency band 21MHz input 100W output 500W (In both cases, the wattmeter is in the 1Kw range). The operating power supply is connected to AC100V, so if the wiring is changed to AC200V, the output will be a little more stable. This is the main unit only. Shipping+++ ? DHL,Fedex,JP Post International Buyers - Please Note+++ Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.

TH393 Nos Tube Triodo New Nuova con il suo involucro originale come da foto.

This is built specifically for the Tubebox S2. I don’t have the expertise to know if it can be used with anything else. Works great, comes with power cord, and cord to connect with the Tubebox S2.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies LTA ZOTL Ultralinear+ Stereo Tube Power Amplifier Product SKU: 52071 Voltage: 120V # of Owners: 2 Service History: None Serial Number: 81 Age: 1 year Tobacco Exposure: No MSRP: $6800 Cosmetic Description: Very good condition with minimal visible cosmetic wear including some very faint scuffs on the top surface. Outstanding condition overall - the condition will please even the most discerning audiophile. What is Included: Amplifier, Four GE 17JN6 tubes, Two GE 12AX7 tubes, Two US 12AU7 tubes, Manual, Power cable, Factory packaging. Other Notes: “It’s fair to say that the ZOTL Ultralinear amplifier is a smashing sonic success.” — 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 $80- 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.

TH393 Nos Tube Triodo New Nuova con il suo involucro originale come da foto.