Follow us| Sign up for our newsletter DIY 2A3/45 Monoblock Power Amplifier Pair - Audiophile Hifi Stereo Tube Amps - Point to Point For over 20 years High End Audio Auctions has been selling the finest HiFi online, but did you know that we BUY your HiFi equipment as well? Contact our sister company STEREOBUYERS for a fair quote today! All items included are pictured. Items are tested fully to ensure all functions work as expected - any defects and additional service done to the item are noted below. Items are not restored or reconditioned, unless specified. All items we sell come with a 30-day warranty - your satisfaction is guaranteed. Original shipping on returns will be refunded at the sellers discretion. Local Pickup in NYC Available MakeModel Details & Testing Notes Cosmetic Condition:8/10: Very Good - Flawless front face, other minor imperfections.One power switch is upside down (down is ON). Units do not have bottom plates. Very good overall physical condition. Please see all high resolution photographs, including detailed inside shots, below.Functional Notes:Functions as intended and sounds great. These monoblock amplifiers can use 2A3 or 45 tubes. - Sylvania 2A3 tubes installed and test very strong. - Magnequest output transformers and BCM8 choke in power supply. - Jupiter and Vitamin Q coupling caps between 5687 and 12B4A tubes. - High quality caps Nichicon Muse, AEON and more. - One power switch is flipped upside down (down is ON).Voltage:120V 50/60HzSerial #:N/AOriginal Box:NoManual:NoRemote:N/APower Cord:YesShipping Method:FedEx Ground (Domestic) / FedEx Economy, USPS Priority, Ebay Standard Delivery (International)Shipping Weight:54lbs (24x20x20) High-End Audio Auctions has been THE trusted source for high-end, classic and vintage audio components on eBay since 2000! Our unique products, unparalleled service and bombproof packaging keeps our customers coming back again and again. We are experts at selling and shipping worldwide, with items ranging from $5 to $50,000. We look forward to earning your repeat business! By placing a bid on any of our listings, you agree to our terms & conditions Click here to learn more Home| About Us| Store Policies| FAQs| Feedback| Contact Us| Custom Tuned Cables _gsrx_vers_1680 (GS 9.8.3 (1680))

For sale is a Pair of Bottlehead Paramour 2A3 Monoblock Amplifiers. These amplifiers are from a fellow audio collector’s estate that I am liquidating. I have recently had them on my bench and have been listening to them for some time now. I noticed a slight hum from each amp and adjusted the hum pots for minimum hum. Measuring at the speaker outputs with the inputs shorted and the speakers connected, I achieved 2 to 3.5mv each. The amps are now pretty quiet. These DIY kit amps are very popular and sound good with efficient speakers. Specifications gleaned from the web: Power Output: 3.5 watts, with 5% THD, at 1kHzTube Compliment: 12AT7 for driver and 2A3 for output per monoblockInput Impedance: 270 kOhmsOutput Transformer Taps: 4 Ohms, 8 OhmsFrequency Response: 25Hz to 37kHz (±3dB) A HiFi enthusiast myself, I am liquidating most of a fellow HiFi collector’s estate. Please see the detailed photos for more on condition. I pack well and ship promptly. Guaranteed to be as described.A picture is worth a thousand words, and I always picture the actual item(s) for sale, so please look carefully at the accompanying photo(s). Please note: When I offer ‘Free Shipping’, it only applies to the lower 48 states.A picture is worth a thousand words, and I always picture the actual item(s) for sale, so please look carefully at the accompanying photo(s). As with all my auctions, the winner will receive their item(s) well packed and in a timely manner. I do not mark up shipping or add handling charges. I will combine shipping whenever possible, please wait for my invoice if you win multiple items. I reserve the right to choose a carrier other than the one(s) listed. I use FedEx Ground for most heavier items.

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The new design, new approach, 2A3 PSE tube amplifier with driver tube 300B (O.U.D.D.C) Walnut wooden case ZERO NFB. This is mono block x 2 amplifier, using O.U.D.D.C in driver stage. Input voltage can be changed to 117V or 230V, no addition fee. Amplifier is working in para Single end mode, adopted O.U.D.D.C ( http://soundgate.net/product/MTQ1MA...highend ) for direct heat tube driving. 2 tube 2A3 parallel connection in single end mode in each channel. Output is up to 8W pure class A, no noise , no hum, sound is beautiful, rich and full of energy. With advantage of O.U.D.D.C, the bass sound is richer and richer. Specification: (Zero NFB) Ouput power: 8W Response frequency : 16Hz ~ 40K Hz Noise : 0.2mV THD 8W 5% Tubes using in amplifier: Prestage: 717A Driver stage: 300B Output stage: 2A3 Tubes are not included. Tested video here > https://www.youtube.com/watch?v=lhQBI0VMHGc /////////////////////////////// NOTE: 1. If you want to buy item, press buy it now or make offer button if you want to offer your best price.2. I only ship item via EMS or Fedex, I dont accept ship item via sea way. If you buy many items from my listing, make payment via Buy it now, I will combine shipping if possible and refund the overcharge shipping fee. 3. Please make your payment within 3 days. 4. If you have any question about item, feel free to ask me before bidding. Generally, I dont response to question ask about what is your best price, you can press best offer button and input your best price. If there is no best offer button then item is fixed price. 5. If you want to find any item related to audio turntable, audio vintage or amplifier, and you can not see in my listing, please ask me via message, I can help you find it. 6. If you want to know about me, you can search on google with key word Otomon Laboratory //////////////////////////////

Normal 0 21 false false false FR X-NONE X-NONE MONOBLOCKS SE TRIODE 300B/2A3 AMPLIFIERS MOONDOG-WELBORNE LABS USA LES PLUS A L’INTERIEUR: Les condensateurs dans la partie alimentation sont BLACK GATE HEART OF MUSE 2x100µ A 500V (c’est le prix de départ) Les couplages en « signal path » sont des SILVER/OIL MUNDORF (VOIR PHOTOS) Vendu avec tubes 300B FULL MUSIC 2,5V, 6J5 SYLVANIA et 5U4GB RCA (Je n’ai pas la possibilité de mesure) CONDITION: Je les vends comme non fonctionnels simplement pour éviter les plaisantins qui achètent et créent des problèmes. Je préfère bien sûr une remise en main propre, mais je peux expédier à vos risques et périls. Je vais faire un emballage blindé et le plus sûr possible. Les amplis fonctionnent très bien et le son est exactement ce que lon attend des amplis TRIODE SE (consultez mes évaluations). ON PARLE SUR INTERNET : «FORCE : Purement musical, clair, naturel, je ne peux pas penser à une meilleure performance - ce sont des amplis exceptionnels (avec les haut-parleurs à haute efficacité appropriés). FAIBLESSE : Aucune (sauf dépendance à lefficacité des haut-parleurs)» AUDIOREVIEW.COM «Que puis-je dire. Ils doivent être quelque chose de très spécial (et croyez-moi, ils le sont). À mon avis, ce sont lun des amplis SE Triode les plus sous-estimés. Je dois admettre que jadore le son des tubes 2A3 et, pour moi, ils sont plus musicaux et justes que les tubes de sortie 300B très appréciés (cest peut-être une question de goût personnel, bien que le manque de haut-parleurs à haute efficacité sur le marché rende plus facile à comprendre pourquoi lindustrie se concentre sur les 300B plus puissants).» Si le prix de vente dépasse 1500 euro, je rajoute les deux câbles d’alimentation 3x6mm2, C-004 et P-004E (Beryllium Copper) présentés dans les dernières photos (ils ne font pas partie de la vente). Pour INTERNATIONAL contactez-moi pour le prix de livraison avant de procéder a l’achat. VEUILLEZ VERIFIER TOUTES LES PHOTOS DANS CETTE ANNONCE. ELLES DECRIVENT CE QUE VOUS ACHETEZ. TOUTES LES PHOTOS FONT PARTIE DE MA DESCRIPTION. CE QUE VOUS VOYEZ EST CE QUE VOUS OBTENEZ. VENDU DANS LETAT TEL QUEL. C’est vous qui fixez les prix ! Payez ce que ça vaut !