This item belonged to my uncle. I know nothing about it and it is used and seems to work when plugged in.

Unit is in great condition with box.

Audio-GD NFB-12 DAC/ Headphone Amplifier w/PowerThis item is pre-owned and may show some slight signs of wear due to normal use. This item is in good condition overall. Tested and is 100% fully functional. Please look at the photos to make your own determination of this items condition.

Vintage ADCOM GDA-700Digital-to-Analog Converterwith HDCDExcellent ConditionFully Functional Guaranteed About This ADCOM GDA-700 D/A Converter: This ADCOM model GDA-700 is a tested fully functional Digital/analog processor with HDCD features. It is in virtually excellent cosmetic condition. An original printed ADCOM GDA-700 Owners Manual along with some brochures and the original unfilled warranty card is included. Includes the AC power Cord (120 VAC USA plug version).This ADCOM GDA-700 is known for its terrific bass, a great sense of pace, and open and spacious soundstage...wide dynamic expression and smooth...refined treble in which RH praised (in Vol.17 No.3).Features of the D/A Converter are:The ADCOM GDA-700 is housed in a standard U-shaped chassis, with a top cover held on by Mark Levinson–style countersunk Allen screws in front and Philips screws in back. The inside of the cover is fitted with a layer of damping material.Pacific Microsonics HDCD process decoder/filter.. Ultra-Analog AES21 receiver module.Dual Burr Brown 20-bit digital-to-analog converters.Class-A biased, direct coupled (no capacitors) analog output stage.. Over 13,000µF of power supply filter capacitance.Balanced and single-ended analog outputs.Toroidal transformer used for audio section.Independent transformer for digital section.Anodized aluminum front panel.Heavy gauge steel chassis for greater durability.GFA-535II Specification:DIGITAL SECTION Input Formats: S/PDIF, AES/EBUInput Type: S/PDIF Optical (TOSlink x1), S/PDIF Coax (RCA x2), AES/EBU (XLR x1)Input Isolation: Transformer coupledInput Decoding: Ultra-Analog AES21Digital Filter: Pacific Microsonics PMD-100 HDCDResampling Rate: 8x (352.8kHz for 44.1kHz input)DAC Type: Dual Burr Brown PCM-1720PResolution: 20 bitsPhase Inversion: Digital Domain (manual selection)ANALOG SECTION frequency Response: DC to 20kHz +0, -0.5 dBTHD: 0.009% (20-20kHz, full scale)Signal to Noise Ratio: 102 dB (20-20kHz, unweighted), >105 dB (20-20kHz, A weighted)Dynamic Range: 98 dBChannel-to-Channel Crosstalk: 106 dB (20-20kHz), 112dB (20-20kHz)Output Voltage: 2.234 V RMS (full scale)Output Impedance (Unbalanced): 77 OhmsOutput Impedance: (Balanced): 150 OhmsOutput Format: Balanced, UnbalancedOutput Type: Balanced (XLR x2), Unbalanced (RCA Coax x2)Output Mute: Relay activated (Power, Unlock)DAC Type: Dual Burr Brown PCM-1720PPower Consumption (maximum): 25 Watts GENERAL Power Supplies: U.S.A. & Canada AC 115V 50Hz/60HzChassis Dimensions (W x H x D): 432 mm x 76 mm x 267 mm (17 x 3 x 10-1/2)Maximum Dimensions (W x H x D): 432 mm x 76 mm x 292 mm (17 x 3 x 11-1/2)Weight: 4.5kg (10lbs)Weight Packed: 5.9kg (13lbs.) Guarantee:This products has been fully tested and verified in good working condition. I want you to be fully satisfied with your buying experience from me and to keep your business and satisfaction. Cancellation & Returns Policy:Returns: This item offered includes a 30-day money back return; if for any reason you are not satisfied, just send it back for a full cost refund. Product must be returned in same condition as sent, with any and all accessories received. Cancellations: Any request made by a buyer to cancel a purchase after payment has been sent will result in a partial refund being issued to cover the cost of non-recoverable fees as charged to the seller. Payments & Shipping: I accept payment using eBays Managed Payments and will ship item(s) only to confirmed eBay addresses, please do not request alternative ship to address unless you register the address with eBay prior to buying item(s). Shipping is done by the next business day after payment is received unless otherwise noted. Your payment is expected by the close of the sale. International Buyers: I do sell internationally using eBays Global shipping program. This is a third party exporter that will determine the cost for shipping and collecting any duties for sending this item to your country. Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are to be paid by the buyer. Buyer is responsible for checking your countrys customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior.

DETAILS:GRADE A+TESTEDPowered onAS-ISWith everything in the photo SHIPPING:* We ship out the order when payment is cleared. Same day shipping for all SKUs beginning with BPC. SKU is at the bottom of the description. Payment MUST be cleared before 3PM for same-day shipping.* We offer FREE GROUND SHIPPING on all of our listings to the continental U.S. If you would like faster shipping, we have several options at checkout. If you need faster, please purchase with free shipping, and send us a label. * We also offer shipping to international destinations and also ship to APO/FPO addresses.* If you purchase multiple items, we will consolidate your orders.* A shipping notification will be emailed to you once your order has been shipped. * We do not ship on Sundays or public holidays, otherwise we ship every day during the week. If expedited shipping is paid for, we will do our best to ship on Saturdays. RETURN:* We stand behind our products. If the item does not function AS LISTED, we will offer you a free return. PLEASE CONTACT US FIRST. Thank you! :-)* We will only provide a return shipping label from the original address the item was shipped to. If any item is forwarded to a different address or out of the USA, the buyer will be held responsible to pay for the return of the item back to the address we have on file for where the item was delivered. We do not cover international returns. ALL items returned will be subject to a restocking fee equivalent to 10% of the purchase price (unless DOA). FEEDBACK:If there is any problem that makes you lower your feedback rating, please contact us directly via eBay message and we will solve any and every concern to guarantee your 100% satisfaction. All messages will be answered within 24 hours even on weekends (except public holidays). Please check your spam/junk folder in your email if you do NOT receive a response from us. SKU: #SC-641

Another great sounding DAC on offer here. Specs were and still are impressive for the time. Highly versatile box featuring a headphone amplifier with DAC and can also act as a preamplifier as well. 3 inputs: Optical, Coaxial RCA and USB. Sounds and looks great! What you see is what you will receive. If you need a power cable, let me know after purchasing and Ill find one to throw in. Will be carefully packaged for safe transit. Lower 48 domestic sale only. No international orders. This is a 120v unit! http://audio-gd.com/Pro/Headphoneamp/NFB11/NFB11EN.htm

Silver Schiit Yggy Upgradable DAC - Some small marks, but in great condition. Serviced for Unison USB a year or so ago. Condition 8.5/10. - Analog 2 - Unison USB - OG DAC You can send this in for a chassis upgrade and reactivate the warranty for 2 years. Same if you opt for More is Less or Less is More on the DAC.

Dose NOT Power on SOLD AS IS PARTS OR REPAIR ONLY

Classic Adcom DAC Tested Toslink and coax inputs, both work well. I am not able to test the AES input. generally excellent condition, with a few scratches in the paint on the top of the case -- see photos. Looks can be deceiving. When it was released, this DAC was considered the best you could get under $1500. Perhaps that explains why, to this day, the ADCOM GDA-600 is known as one of the great sleeper DACs. In keeping with a successful begin with the basics approach, Adcoms engineers carefully re-thought the power supply used in this exciting new product. Isolated on its own circuit board, it incorporates a bi-directional AC filter, two transformers, seven separate stages and 27 filter capacitors to increase circuit isolation and minimize noise and unwanted interference.An industry acclaimed Crystal Semiconductor receiver, custom-configured for minimum jitter, forms the front end for conversion circuitry that includes a high speed digital filter and dual selected Burr-Brown 20 bit ladder-type DACs. Each units master clock duty cycle is individually computer-calibrated to insure the highest accuracy.Linear phase anti-imaging filters, 1% metal film resistors and Adcoms proprietary linear gain amplifiers give exceptional analog performance. Again, individual calibration assures minimal DC offset.The GDA-600s flexibility is assured by four impedance-matched inputs: three S/PDIF inputs (two coaxial, one optical) and an AES/EBU XLR input. A buffered S/PDIF output lets you record entirely in the digital domain.Compliance with stringent FCC Rule 15 standards assures minimum RF and EMI emissions and the highest levels of compatibility with other high performance components in an audio-only or an audio/video home entertainment system.The GDA-600 is truly an example of Adcoms forward-thinking engineering where low jitter design, Class A analog circuitry and Adcoms dedication to the highest quality, custom-configured electronic parts combine for a groundbreaking improvement in digital sound.

Dose NOT Power on SOLD AS IS PARTS OR REPAIR ONLY

Selling my well used Audio-GD R27 2021 - wish I could keep it, but my equipment stable is getting crowded. I upgraded the stock feet to thicker and heavier ones to prevent slippage when I plug/unplug cables, and for better cooling. All internal stages run in class A so it does get quite warm. The sound signature also leans a little warm, so I recommend it in combination with solid state equipment. I used it for a variety of scenarios:Fixed DAC outputting to a separate analog all-in-one stage DAC and digital preamp supporting a First Watt J2 power amp and standalone powered subwoofer Headphone amp Internet streamer (with a Wiim Mini attached to the toslink input)USB input from a PCIIS input from a Audio-GD DI-20HE

This is the original Unison USB version! Bought this straight from the Schitter demo floor. This is the highest end DAC they have with many preferring the original versions tuned by Mike Moffat. But overall, she looks fantastic! Pic is for ref only! Introducing the Schiit Audio Yggdrasil OG DAC, a top-of-the-line power amplifier with USB audio inputs. This model is a floor model directly from Schitter, and boasts of analog features. It is a great addition to your home audio system, providing exceptional sound quality and versatility. Perfect for music enthusiasts and audiophiles who want to elevate their listening experience.

Enhance your audio experience with this high-quality ADCOM GDA-600 digital to analog converter. Designed to deliver exceptional audio performance, this DAC is compatible with Adcom and features a sleek black finish that complements any home audio setup. Whether you're a music enthusiast or a professional looking for a reliable audio converter, the ADCOM GDA-600 is the perfect choice for you.

Sehr guter Zustand, Erstbesitz, Nichtraucherhaushalt. Privatverkauf, kein Umtausch. Der Cambridge Audio DacMagic Upsampling DAC ist ein gebrauchter, aber sehr gut erhaltener Digital-Analog-Wandler. Er eignet sich perfekt für HiFi-Enthusiasten, die ihre Musik in höchster Qualität genießen möchten. Mit seinen zahlreichen Eingängen und Ausgängen kann der DacMagic an eine Vielzahl von Geräten angeschlossen werden und bietet dank seines Upsampling-Verfahrens eine deutliche Verbesserung der Klangqualität. Das Modell ist ideal für Musikliebhaber, die ihr bestehendes Setup aufrüsten möchten, ohne dabei ein Vermögen ausgeben zu müssen.

Schiit Audio YGGDRASIL SCH-10 Bitperfect Upgradable DAC in excellent condition, comes with power cord

Audio-GD NFB-12 DAC/ Headphone Amplifier w/PowerThis item is pre-owned and may show some slight signs of wear due to normal use. This item is in good condition overall. Tested and is 100% fully functional. Please look at the photos to make your own determination of this items condition.

I am the second owner of this device. Bought it from original owner in 2019 and has been my daily driver ever since. The device is in great working condition and overall is well-maintained. Will come with power and USB cable. As shown last couple pictures: 1) Minor scratch on bottom surface not visible during use 2) Barely visible hairline scratches on volume knob - really have to play around with the lighting and angle to catch it Note: requires 1/4” end to connect to DAC/AMP

Audio-Gd R2R R-1 Ladder DAC. This is the 2021 model. Fabulous sounding DAC! I am the second owner. No issues with it. I enjoyed this thoroughly but am upgrading my system. Comes only with power cable. Previous owner purchased direct from Underwood HiFi. Message with questions. Best review Ive seen was from below:https://headphone.guru/audio-gd-r2r-1-fpga-pcm-dsd-dac-done-right/ For additional information and any owners manual/details:http://www.audio-gd.com/R2R/R121/R121EN.htm

Audio-Gd R2R R-1 Ladder DAC. This is the 2021 model. Fabulous sounding DAC! I am the second owner. No issues with it. I enjoyed this thoroughly but am upgrading my system. Comes only with power cable. Previous owner purchased direct from Underwood HiFi. Message with questions. Best review Ive seen was from below:https://headphone.guru/audio-gd-r2r-1-fpga-pcm-dsd-dac-done-right/ For additional information and any owners manual/details:http://www.audio-gd.com/R2R/R121/R121EN.htm

Audio-Gd R2R R-1 Ladder DAC. This is the 2021 model. Fabulous sounding DAC! I am the second owner. No issues with it. I enjoyed this thoroughly but am upgrading my system. Comes only with power cable. Previous owner purchased direct from Underwood HiFi. Message with questions. Best review Ive seen was from below:https://headphone.guru/audio-gd-r2r-1-fpga-pcm-dsd-dac-done-right/ For additional information and any owners manual/details:http://www.audio-gd.com/R2R/R121/R121EN.htm

This listing is for. used GDA-600 Digital to Analog Converter. The unit powers up but has not been tested. DAC TYPE: Selected R-2R Burr-Brown PCM-63 Sold As-Is. Included Items:ManualLine Cord -----See associated Listing:ADCOM GSA-700https://www.ebay.com/itm/196077271453 ADCOM GDD-1https://www.ebay.com/itm/196077192654

Audio-GD NFB-12 DAC / Headphone Amplifier w/ Power This item is pre-owned and may show some slight signs of wear due to normal use. This item is in good condition overall. Tested and is 100% fully functional. Please look at the photos to make your own determination of this items condition

Audio-gd NFB-10SE Dac/Amp. This Dac/Preamp/Headphone amp combo unit is in perfect working condition with some minor cosmetic blemishes that do not affect the performance. This particular unit does require 240v input, but that can easily be fixed with a voltage step up converter.NFB means Non-FeedBack. NFB-10SE uses the latest high-end “Dual WM8741” which can support up to 32Bit/192KHz input. Similar to other WM8741 designs, NFB-10SE applies Non-feedback ACSS output stage. The “Dual WM8741” feeds to the ACSS output stage without any Operational Amplifier (OPA) so it can achieve very neutral sound. The ACSS technology is a non-feedback technology made with fully discrete amplifiers. Most people know that the global feedback design offers better specifications in measurements than non-feedback design. However, non-feedback design offers better sound for human ears, which is a drawback of the conventional circuits. But the ACSS technology opens a new era, it offers the least coloration sound which is very neutral with very low distortion and high linearity. It retains the dynamics, details and neutrality but does not sound bright or harsh. The output buffers are also non-feedback. In order to maintain low impedance, we applied a diamond output stage which is quite less colored than most conventional circuits. The analog stage does not use couple cap to avoid coloration. The 32bit/192KHz USB interface outputs an I2S signal to the “Dual WM8741”. NFB-10SE applies the WM8805 as the SPDIF interface; its sound characteristic is the same as the WM8741, which is detailed and smooth and supports up to 192KHz. The WM8805 has quite low jitter (50PS). Output impedance ?2 ohm Output Level ? Headphone output : 19V RMS (balanced , max) Preamp Variable output (balanced) : 10V RMS (max) Preamp Variable output (RCA) : 5V RMS (max) Fixed output (balanced): 5V RMS Fixed output (RCA): 2.5V RMS ACSS? 2MA+2MAHeadphone amp output power level (Only for headphone.) Balanced mode 9950MW / 25 ohm 5950MW / 50 ohm 3300MW / 100 ohm 1150MW / 300 ohm 590MW / 600 ohm ?Headphone amp output power level (Only for headphone.) Single-ended mode ?3300MW / 25 ohm 1650MW / 50 ohm 850MW / 100 ohm 300MW / 300 ohm 150MW / 600 ohmInput Sensitivity 0.5 Vp-p (75 Ohms, Coaxial) 19 dBm (Optical) USB1.1 USB2.0 (Full Speed, Class2) ?Frequency Response 20Hz - 20KHz ?-0.2DB? ? Support Operate Systems (USB) ? 44.1kHz to 192kHz?Support Sampling USB model : 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz Coaxial model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz Optical model: 44.1kHz, 48kHz, 88.2kHz, 96kHz ?Power Requirement 220-240V AC 50/60 Hz ?Power Consumption 17W ?Package Weight Approximately 5KG ? Dimensions ?W240 X L360 X H80 mm (Fully aluminum) Accessories AC power cord X1 ?