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Superb Nelson Pass design based upon his Stasis amplifier design exemplified by Threshold Corporation. This is the PA5 rated at 100 watt per channel which is enough STASIS watts to drive any speaker, these even drive the Martin Logan ReQuest electrostatics that dip to just over 1 ohm, with no problems whatever. The sound is crystal clear and ethereal and has a very good bass rythm and drive. I am happy to demonstrate the amplifier driving Sonus Faber speakers. Any questions or queries pop me a question via the ebay messages- more pictures to follow

NELSON PASS FIRST WATT F4POWER AMPLIFIER The First Watt F4 is a classic Nelson Pass/First Watt design with JFET inputs and MOS-FET outputs. However, as with the other FW amps there is a twist here, namely that the F4 has no voltage gain. That means it’s essentially a buffer than can provide a full 25W class A output. its low or no gain so needs a preamp with a decent output Track Page Views WithAuctivas Counter

Used, some scratches and dings on sides. Purely cosmetic. US version

Nelson Pass designed Amp Camp Amp Audio Class A, 2 Channel Amplifier. This class A amplifier is newly built by myself and has an output of 8 watts per channel (2 channels). I am an experienced electronics builder and the amplifier works perfectly. It will move your woofers on shutoff, that’s inherent in this simple design. It’s a great way to inexpensively get an Nelson Pass designed amplifier. Beautiful clean and warm class A sound. You will need reasonably efficient speakers and a preamp to use it. My speakers have a sensitivity of 89db at 1 watt at one meter and they work great. Comes with external 24v power supply. Please ask any questions and I will get back to you right away. I will ship same day if I can. You can read the full specs of the amplifier at https://diyaudiostore.com/products/amp-camp-amp-kit?variant=39678364024905

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Nelson Pass First Watt F5 Power Amplifier.. 2nd owner, comes in good condition.

Excellent multi-input MC step up or head amp with the dedicated power supply. The PSU has two outputs, just in case you have another Threshold M series component. The PSU is 220V so its good throughout Europe and other civilised nations. However the step up itself runs on 20V so it will work with any suitable Threshold component. Theyre both in excellent working order. No LEDs or switches or anything - these are purist devices, leave them connected. If there’s no Buy It Now price displayed, there’s no Buy It Now price Unless stated, I ship overseas. If the price isn’t shown, please ask If its not shown or mentioned, its not included Please look at my other items _gsrx_vers_1516 (GS 9.3 (1516))

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This is a custom built Pass B1 buffer preamp that I DIYd over a year ago.I built this for my lab as a reference preamp and its served well but its time to let it go as Ive found a better preamp for my needs. I built this using the PCB + four JFET package available as PASSDIY.com. The potentiometer is a genuine Alps Blue, and the case is of chinsese origin. The power supply is a Meanwell 18v PSU. The wire used is silver plated teflon. This is a fantastic preamp for someone needing a simple, transparent, and clean buffer between their source component and preamp for optimum signal transfer. If you have a dac with lots of voltage on tap, this is perfect to interface it with a matching amp. Heres an opportunity to own a fantastic preamp at a fraction of the price of the Firstwatt model, despite them being identical. I will not ship this item outside of the United States unless the buyer uses the Ebay International Shipping Program, otherwise the order will be cancelled.

Used, some scratches and dings on sides. Purely cosmetic. US version

From the Author of Lifes Little Instruction Book, H. Jackson Brown, Jr. and Robyn Spizman .A Hero in every Heart, NIP , audio cassette, 1996, 90 minutes by Nelson Audio . Condition is New. Shipped with USPS First Class.