This assembled board is a Nelson Pass B1 with Korg Nutube triode. It’s a preamplifier. You could install it in a new chassis, or (perhaps) retrofit an existing component by subbing in this B1 for the preamp section. What’s next is up to you, some DIY required. This board is the OG—it’s the Christmas board. It predates the offerings sold as kits. Its been fitted with high end parts (Vishay Dale resistors and Nichicon audio capacitors) and specd out to handle up to 35V. Great condition.

Korg Nutube B1k preamp board. Sold for parts or repair. Untested Im told by the builder that it worked fine, but I cannot guarantee this in any way so its being sold “as is” no returns. Free shipping within the USA

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre amp and S-1 power supplybuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/re-capped and the main and both MM & MC phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable, S-1 power supply and XLR for power supply.

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre amp and S1 power supplybuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/re-capped and the main and both MM & MC phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable and XLR for power supply.

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre ampbuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/ pre-capped and the main/phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable and XLR for power supply.

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre ampbuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/ pre-capped and the main/phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable and XLR for power supply.

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre ampbuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/ pre-capped and the main/phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable and XLR for power supply.

Nelson Pass 1st Watt B1 Preamp Korg Nutube Triode -- EXCELLENT SOUND! The Nutube has been very well damped against microphonics. This preamp was put together very well, with great attention to detail. The sound is very good. Nice little small footprint preamp with that wonderful triode tube sound! https://diyaudiostore.com/products/korg-nutube-b1

Threshold SL-10 Pre-amplifier amp Nelson Pass Labs audiophile excellent Pre amp Threshold SL-10 Pre-amplifier phono pre ampbuilt by Nelson pass now of Pass LabsThis Pre-amp/ Phono pre combo has come up on lists as one of the best of all time google it.with fine tuning switches for MM/MC phono cartridge capacitive loading and impedance loading.I purchased from Stereo Unlimited San Diego and in 2022 had it gone thru/ pre-capped and the main/phono jacks upgraded.This work was done by Jon Soderberg who was an original tech for Threshold.This is truly an audiophile pre-amp /phono amp with many settings for MM and MC cartridges.Beautiful build quality.Im selling because I recently went with an integrated and need the $Comes with generic power cable and XLR for power supply.

DescriptionMezmerize B1 pre B1 improved version Power supply is Salas ultra bib ultra high quality shunt regulatorAlmost no gain2sk170/j74 matched pair usedSeiden switchmuses72323 base is from takazine, gain is gained when opamp is put in.Salas ultrabib shunt regulator generates some heat, butIt is only warm.It can be replaced with a passive volume. Power cable is not included.Shipping FedExPlease read this before you buy the product.And please understand what we can.I only send the item to the address on eBay.International Buyers - Please Note:?Import duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. ?Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. ?We do not mark merchandise values below value or mark items as gifts - the US and International government regulations prohibit such behavior.

KORG NUTUBE B1 Pre-amp. Nelson Pass presented a pre-amp using the Korg Nutube dual triode. This was built by skilled electrician and its in excellent working condition. Sold as-is - US shipping only, no international.

Im sure if youre looking, you know what this is. These kits are $300 unassembled and are sold out. Its a genuinely great sounding preamp that has no right to be this good for this price. I bought this as a replacement while my preamp was being repaired, but couldve happily lived with it forever. Guaranteed to arrive as pictured and described, with no warranty given or implied, and no returns.

DescriptionAll items are shown in the pictures. If you cannot tell from the pictures please contact us. Due to differences in region codes some games CDs DVDs etc. may not ?be available. The voltage of some electrical products may be different. Please make sure to check before purchasing. PaymentPlease pay within 2 days of winning the auction. Shipping There have been delays in delivery due to the global pandemic. There may be a significant delay in the scheduled delivery date. Delivery Time Economy delivery? 3 to 4 weeks (Tracking numbers are not reflected in Australia Canada and some regions.) Standard delivery 2 to 3 weeks Terms of Sale If payment is not confirmed within 2 days of purchase the order will be cancelled. Returns are accepted within 60 days.International Buyers - Please Note: Import duties and taxes are not included in the item price or shipping cost. Please check with your countrys customs office for additional costs before bidding or purchasing. Duties and taxes are not collected by the shipping company. Please check with your countrys customs office for additional costs before bidding or purchasing. The act of declaring goods at a lower value or declaring goods as gifts is prohibited by international governments. Shipping discounts are available for multiple purchases.We now accept more than just PayPal!Condition? MINT

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.