Legendärer ClassA Single Stage Single Ended Poweramp Pass (Aleph) Zen. Erst 50 Betriebsstunden. Doppelmono, 2x Ringkerntrafo (etwas versch. Optik, aber identische Werte). Minimum 2x10/30Watt sinus/Impuls. Kaltgerätebuchse. 220/240Volt. Absolut rausch- & brummfrei. Sehr gute Machart im Top Alu-Gehäuse/DIY. Made in Sweden. (Passende Pass Vorstufen auch da!) User Bewertungen: B.D. Audiophile ***** Strength: I suppose it is the best in all areas except power Weakness: You need excellent parts in all of your listening chain ;-) Air is the first thats comes in mind, when you listen to this amp. Feel the air dancing on strings and hear all nuances in Barbara Bonneys wonderful voice. You want bass you will get it. The rhythm rolls through all octaves from the bottom to the top. There is nothing hidden listening to the Zen. B.L. Audiophile This Amp sounds really good!!! The hours and the hardwork put into it paid off. The High-midrange of this amp sound is unbelievable. The Bass is Sloppy, and I mean SLLOPPPY. If your a mosfet lover, you should really try this one. If your a Glasso-phile, well, just throw away those tubes for a week and try some mosfets! Zx Audio Enthusiast ***** WANTED !!! I listen Pass ZEN. I really impressed with that sound. Bill Audio Enthusiast ***** ... the sound! You will be rewarded for your hard work with unbelievable performance

PAWN AMERICA KEY TECHNICAL SPECIFICATIONS :Brand: Nelson PassType: Power AmplifierModel: ACAColor: BlackAmplifier Class: A Features : Experience the rich, pure sound of the Nelson Pass ACA Class A Power Amplifier. This sleek and elegant amplifier, with its signature black and silver design, promises unparalleled audio quality for audiophiles and music enthusiasts alike. With a robust construction featuring various connectors and a compact design, its the perfect addition to elevate your sound system. Whats Included : Nelson Pass ACA Amp Camp 1.8 Class A Amplifiers Solid State Power Cord Condition : This amplifier is previously owned. This is in good condition. There is minimal wear. Please see photos for details. Reference: 24122033958 Note: Overnight Shipping order cut off time is 1PM CST. HOME | LOCATIONS | SERVICES | PRODUCTS | CAREERS | CONTACT US

Nelson Pass designed amplifier. The PA-5 (and PA-7) use Passs Stasis technology. Nakamichi overstepped the license and used ALL of the topography. They got sued, hence, the PA-5II & PA-7II. The original series sound much better, they are amazing sounding amps. They are 100% Pass design! This amp, while not perfect, is quite clean, and functions perfectly. A lot of music for the money. They run warm. These are know for clarity and a sweet sound. Power output: 100 watts per channel into 8? (stereo) They are known to push out as much as 140W before clipping. Frequency response: 7Hz to 150kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 1.4V Signal to noise ratio: 120dB Speaker load impedance: 4? to 16? Semiconductors: 20 x transistors 700 Watt toroidal transformer Dimensions: 435 x 135 x 368mm Weight: 16kg

Hobbyauflösung wegen Umzug Der Verstärker ist mein DIY Projekt basierend auf Nelson Pass F5 Turbo Verstärker Die Platinen und die matched Teile waren direkt in USA bei DIY Audio Shop bestellt . Das Gehäuse ist von ModuShop(Italien). Restlichen Komponenten habe ich hauptsächlich bei Mouser gekauft (somit originale hochqaulitative Komponente). Beshcaffungskosten waren hiermit bei ca. 900EUR ohne Kleinteile. Der Vertärker ist vollfunktionsfähig. Ich bin mit dem Klang sehr zufrieden, muss ihn LEIDER verkaufen, da ich wegen Umzug mein Hobby komplett auflösen muss. Ich habe den Verstärker sehr sorgfältig nach der Bauanleitung gebaut, allerdings handelt es hier um ein DIY Verstärker, der ausschließlich als Bastelgerät verkauft wird (wegen Stromnetztanschluß nicht geeignet für unerfahrene oder unqulifizierte Person) Bei Fragen einfach mailen. S. Bilde für weitere Details Privatverkauf, keine Rücknahme oder Umtausch, keine Garantie. Ich schließe jegliche Sachmangelhaftung aus. Die Haftung aus Schadenersatz wegen Verletzung von Gesundheit, Körper oder Leben und grob fahrlässiger und/oder vorsätzlicher Verletzungen meiner Pflichten als Verkäufer bleibt uneingeschränkt. Am 23.01.25 hat der Verkäufer die folgenden Angaben hinzugefügt: Wegen Nachfragen -Der Netztrafo ist ein 800VA Ringtrafo von TOROIDY.PL mit 2x24VAm 25.01.25 hat der Verkäufer die folgenden Angaben hinzugefügt: Selbstverständlich kann man bei einer Abholung probehören.

Nelson Pass designed amplifier. The PA-5 (and PA-7) use Passs Stasis technology. Nakamichi overstepped the license and used ALL of the topography. They got sued, hence, the PA-5II & PA-7II. The original series sound much better, they are amazing sounding amps. They are 100% Pass design! This amp, while not perfect, is quite clean, and functions perfectly. A lot of music for the money. They run warm. These are know for clarity and a sweet sound. Power output: 100 watts per channel into 8? (stereo) They are known to push out as much as 140W before clipping. Frequency response: 7Hz to 150kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 1.4V Signal to noise ratio: 120dB Speaker load impedance: 4? to 16? Semiconductors: 20 x transistors 700 Watt toroidal transformer Dimensions: 435 x 135 x 368mm Weight: 16kg

Nelson Pass designed amplifier. The PA-5 (and PA-7) use Passs Stasis technology. Nakamichi overstepped the license and used ALL of the topography. They got sued, hence, the PA-5II & PA-7II. The original series sound much better, they are amazing sounding amps. They are 100% Pass design! This amp, while not perfect, is quite clean, and functions perfectly. A lot of music for the money. They run warm. These are know for clarity and a sweet sound. Power output: 100 watts per channel into 8? (stereo) They are known to push out as much as 140W before clipping. Frequency response: 7Hz to 150kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 1.4V Signal to noise ratio: 120dB Speaker load impedance: 4? to 16? Semiconductors: 20 x transistors 700 Watt toroidal transformer Dimensions: 435 x 135 x 368mm Weight: 16kg

Nelson Pass Phono Clone MM Nachbau Funktioniert einwandfrei .XLR Ist der Eingang von Plattenspieler ( XLR Cinch Adapterkabel Kabel liegt bei )Cinch ist der Ausgang zu Verstärker.Hervorragender Klang ohne Störgeräusche Das Gerät ist ein Eigenbau ohne Garantie oder Haftung Versand mit DHL

Nelson Pass designed amplifier. The PA-5 (and PA-7) use Passs Stasis technology. Nakamichi overstepped the license and used ALL of the topography. They got sued, hence, the PA-5II & PA-7II. The original series sound much better, they are amazing sounding amps. They are 100% Pass design! This amp, while not perfect, is quite clean, and functions perfectly. A lot of music for the money. They run warm. These are know for clarity and a sweet sound. Power output: 100 watts per channel into 8? (stereo) They are known to push out as much as 140W before clipping. Frequency response: 7Hz to 150kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 1.4V Signal to noise ratio: 120dB Speaker load impedance: 4? to 16? Semiconductors: 20 x transistors 700 Watt toroidal transformer Dimensions: 435 x 135 x 368mm Weight: 16kg

Welcome to ELC Audio Engineering and my eBay store. Please read the description carefully before bidding or asking questions. Shipping: eBay does NOT automatically adjust for the shipping cost of combined items. If you purchase multiple items that can be combined into a single shipment, please request an invoice so I can combine items and save you money. I charge for actual shipping only (i.e. no added fees) using eBays shipping calculator. International bidders must use eBays International shipping service. Please read [1] for additional shipping info. I do not use stock photos or canned descriptions. What you see in my photos is exactly what youre bidding on. I do not borrow photos from other sellers, nor do I use eBays database. Other sellers have used my photos (noting I have zero affiliation with those sellers), and why I have added the tungsten (atomic symbol W) coffee mug for personal identification. If sellers arent using their own photos, then you really dont know what youre buying or bidding on. Photos are an integral part of my descriptions: Please view all photos carefully. If something isnt clear, please ask before you bid. Please read the description carefully so you know exactly what you are bidding on. With very few exceptions, I do not accept returns. Read [2] for further details regarding this policy. Nothing in this listing is misleading--check my feedback as a seller [3]. Many thanks for keeping eBay a positive buying and selling experience! This auction is for a kit (loosely) of parts for an AUTHENTIC Nelson Pass (of Threshold fame) A40 class-A stereo power amplifier. The printed wiring boards are the real deal, not rip-offs coming from ?? The boards were purchased through Old Colony Sound Labs, the official supplier for many Audio Amateur Publications components. For DIY audio enthusiasts, this collection of parts (AKA kit) has to be a very unique find. The builder will need to find a suitable power transformer or transformers (44 VCT at 6A needed for EACH channel). This kit includes all the semiconductors, to include the power transistors and high-current bridge rectifiers. Capacitors (easy to find) are NOT included. The 0.68 ohm 1W wirewound resistors are not included, but all of the 1/4W 1% film resistors are included. Please view all photos carefully, as theyre better descriptors than my writing. Reminder: International buyers must choose eBays International Shipping Service. Thank you for viewing! [1] I pack items with great care--the same way Id like to receive a delicate or valuable item. Like other sellers, I do not have control over shipping costs or carrier delivery time. Small- and medium-sized items will be shipped via USPS Priority Mail. Larger parcels will be shipped via FedEx Home or FedEx Ground. Unlike Jeff B, neither eBay nor I operate our own shipping services--this means no free, prime, or overnight shipping (although I ship some items for free depending on size). [2] Why I no longer accept returns: In a few unfortunate incidences, bidders with buyers remorse had intentionally damaged perfectly good equipment in order to receive a refund. In other instances, buyers were simply incompetent: Equipment was damaged because these buyers did not know how to properly use or handle it; yet, they wanted refunds because of the damage they had caused. Bottom line: No returns! If the wrong item is shipped or if their is a gross oversight on my part (I have yet to do either of these), I will promptly refund or exchange the item and pay for return shipping. Please understand what youre buying is USED unless its clearly stated as new. [3] Im batting 100% positive feedback after nearly two decades of buying and selling on eBay*. I kindly leave positive feedback for those who do the same. Prior to my current username, I had over 1500 combined selling and buying reviews with 100% positive feedback. *(I changed my username since starting on eBay in order to reflect my current business.) I do not entertain best offers, nor do I end auctions early. Item will be sold to the high bidder (heck, a single bidder might get a fantastic deal). Items not paid for after 72 hours will be re-listed.

Kompakte und wunderbar klingende Vorstufe nach Nelson Pass. ALPS Poti, 2x AUX Eingang, kanalgetrennt justierbar über Trimmpotis, dadurch sehr flexibel einsetzbar. Neu aufgebaut, lediglich das Gehäuse und der Ringkerntrafo sind älteren Datums. DIY. Kaltgerätebuchse. 220/240 Volt. Ringkerntrafo. Absolut Brumm- und rauschfrei. Gute Machart made in Sweden, siehe Bilder. 1 Jahr Garantie. (Auch Bride of Zen mit 3x Input/AUX & Pass ClassA Endstufe Return of Zen, sowie Gainclone Endstufen da!) Nelson Pass: ...I will not disappoint you. It sounds marvelous. Really. No Kidding. Even if you didn’t build the Zen amplifier, you owe it to yourself to do this one. Stay tuned... User Bewertungen: ++++ Imageing, instrumental timbre, voices, detail ++++ Very detailed, huge 3-dimentional soundstage with great sense of space and top notch imaging. Excellent for the price.

Kompakte und wunderbar klingende Vorstufe nach Nelson Pass. ALPS Poti, 3x AUX Eingang, kanalgetrennt justierbar über Trimmpotis, dadurch sehr flexibel einsetzbar. Neu aufgebaut für die Phonobar. Holzseiten/Edelstahlausführung. DIY. Kaltgerätebuchse. 220/240 Volt. Ringkerntrafo. Absolut Brumm- und rauschfrei. Gute Machart made in Sweden, siehe Bilder. 1 Jahr Garantie. (Auch Bride of Zen mit 2x Input/AUX & Pass ClassA Endstufe Return of Zen, Power Follower SE Amp sowie verschiedene Gainclone Endstufen da!) Nelson Pass: ...I will not disappoint you. It sounds marvelous. Really. No Kidding. Even if you didn’t build the Zen amplifier, you owe it to yourself to do this one. Stay tuned... User Bewertungen: ++++ Imageing, instrumental timbre, voices, detail ++++ Very detailed, huge 3-dimentional soundstage with great sense of space and top notch imaging. Excellent for the price.

Description of itemThank you for visiting! Our shop is 100% Authentic item. If you have any questions, please be free to ask us.  Have a great shopping on ebay! Paymentwe accept payment only through ebay Managed Payment. Shipping-Japan Post: 5-20 days to arrive -DHL: 5-10 days to arrival *We will ship the item by Japan post or DHL.  If you need expedited shipping, please let me know. I will ask you about extra payment.  Depending on the size and weight after packing the items, The shipping method may change depending on your location. **If you live in a remote area, We might ask extra charge for intenrational shipping. Please contact us for additional charges Shipping is only available to the address registered on ebay. Please note that any address not registered in ebay is not acceptable to ship. Shipping is available from Monday to Friday. **If you live in a remote area, We might ask extra charge for intenrational shipping. Weekends are not available because post office is closed.Term of sale-Return We accept product return within 30days from delivery date but product should be in original position and not in damaged condition,the return shipping charges will be buyer responsibility. -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.

This is an amplifier that I built from PCBs purchased at diyaudio. This amplifier is a Aleph J clone. Amplifier sounds amazing. No issues I am moving and selling off my audio gear. Any questions please ask. Class A mosfet amplifier with Jfet input stage. 25 Watts x2 @ 8 ohms 20db Gain

This Mezmerize B1 Buffer was a PCB that was purchased from diyaudio. I assembled this Buffer, it works as expected. It was Hot Rodded and is currently at 350mA. Very nice Buffer for someone. 6 inputs that are relay selected. Single Ended output.

Threshold 400A Power Amplifier Unit, power cable and original box. Excellent condition. Tested and working. It was serviced in 1997 by Threshold - preventative maintenance and repaired a transistor in output stage - see service receipt in photos for more information. I have not opened the unit and do not the brand or origin of any internal parts. It has been in climate controlled storage since the service in 1997. Dimensions: 19 x 7 x 11 inches Weight: 51.5lbs

*Shipping to mainland USA only* -------------------------------------- ITEM DESCRIPTION: For sale is one Nelson Pass B1 buffer preamp. This is diy buffer preamp with no gain but low output impedance for 2 line level inputs such as CD or tuner, etc... It came with a wall-wort power supply. This was acquired from a trade so I did not build this but used it before I acquire a line preamp with gain. It was built based on a design by Nelson Pass of Threshold/Pass Labs fame. The board is stuffed with quality components and chassis is sizable for future upgrades and came with gold plated RCA jacks. It uses two mono volume controls for stereo. Very quiet and very clean and neutral sounding. Perfect for between CD player or phono stage and high gain power amp for full output. Since it has no gain, theres very little distortion and noise but provide low output impedance to drive long cables. You can read all about it and the instruction here: https://www.passdiy.com/project/preamplifiers/b1-buffer-preamp Selling AS-IS. What you see is what you will get. Net weight: 7 lbs Dimensions: 17 x 11.5 x 3.5 Item will be well packed for safe arrival. --------------------------------------- WORKING CONDITION: transformer winding continuities tested fine with ohmmeter --------------------------------------- PHYSICAL CONDITION: check pictures --------------------------------------- SHIPPING: Shipping to USA via USPS ground. Local pick up with no charge. --------------------------------------- RETURN: Item has been described to the best of my knowledge and please ask questions before bidding. Due to nature of used equipment, item is being sold AS IS, NO RETURN. -------------------------------------- PAYMENT: PayPal or cash for local pick up. -------------------------------------- OTHERS: Dispute could be resolved with message exchange before involving eBay. Dont forget to check my other auctions. --------------------------------------

Description of itemThank you for visiting! Our shop is 100% Authentic item. If you have any questions, please be free to ask us.  Have a great shopping on ebay! Paymentwe accept payment only through ebay Managed Payment. Shipping-Japan Post: 5-20 days to arrive -DHL: 5-10 days to arrival *We will ship the item by Japan post or DHL.  If you need expedited shipping, please let me know. I will ask you about extra payment.  Depending on the size and weight after packing the items, The shipping method may change depending on your location. **If you live in a remote area, We might ask extra charge for intenrational shipping. Please contact us for additional charges Shipping is only available to the address registered on ebay. Please note that any address not registered in ebay is not acceptable to ship. Shipping is available from Monday to Friday. **If you live in a remote area, We might ask extra charge for intenrational shipping. Weekends are not available because post office is closed.Term of sale-Return We accept product return within 30days from delivery date but product should be in original position and not in damaged condition,the return shipping charges will be buyer responsibility. -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.

Very Well Cared For……… Adcom GFP-750 PreAmplifier from the early 2000’s Blue Board - Made in America Motorized Volume and Source Controls Balanced XLR or RCA input/output options XLR Shorting plugs included…..to be used when using RCA options Passive Mode Processor Loop - Switchable INCLUDES…..One Pair of TRIBUTARIES A-2 Silver Audio OFHC Interconnect Cables - Half Meter Original Box and Packing This unit will be shipped double boxed……Heavy Duty Outer Box is 24” x 20” x 8”……Please check shipping choices. UPS and FED EX tend to be less expensive on larger packages

Excellent example of a legendary power amplifier. Nelson Pass design, and in this iteration it is improved with MOSFET circuitry, which has a bit richer, warmer sound. A bit tubelike. Gobs of power, 200 watts x2, will drive anything with authority. Absolutely excellent condition, very clean on the outside (see photos). Inside in great shape as well, just a bit dusty, see photos. Recently checked out and given a clean bill of health. Sound is just wonderful. I would keep it but it’s massive and I don’t need 200 watts. I purchased this from the original owner, and it was obviously well cared for in his home listening room. It comes in the factory box with the owners manual. An excellent amplifier in all regards. I’ve done my best to describe the condition, and provided plenty of photos. If you have any questions please ask. This amp weighs 48 pounds and will be expensive to ship.

Nelson Pass Phono Clone MM Nachbau Funktioniert einwandfrei .XLR Ist der Eingang von Plattenspieler ( XLR Cinch Adapterkabel Kabel liegt bei )Cinch ist der Ausgang zu Verstärker.Hervorragender Klang ohne Störgeräusche Das Gerät ist ein Eigenbau ohne Garantie oder Haftung Versand mit DHL

I started this kit years ago and never finished it. Here is your chance to build a legendary class a amplifier based on Nelson passes design. Includes everything. Because everything is solid, aluminum, and the transformers are vastly over dimension, it is very heavy and it is for pick up only.

Fantastic Nelson Pass class A amps, quality comps. Two amps with power supply. Can be stereo, parallel mono, or bridged mono. Last two I have for sure, they were all by friends, he is ill now. He bought a ton of stuff, uses very little of it, he had 3 pair of these, sold 2 sets so far. Sold as is. Lower 48 only, shipped in 2 priority boxes.

I started this kit years ago and never finished it. Here is your chance to build a legendary class a amplifier based on Nelson passes design. Includes everything. Because everything is solid, aluminum, and the transformers are vastly over dimension, it is very heavy and it is for pick up only.