Bought this in late May, and it arrived literally the night before we left for a 2 week vacation, so I missed my 15-day period to return it. I love it! It sounds superb and Ill get to that more in a minute. In short, I bought one of the Yggdrasil GS+ units hoping the older analogue card would sound great. It did, but I have Klipsch RF-7 IIIs and I was hoping to tame a bit of the forwardness of those Klipsch with a warmer Less is More Upgrade. It did, but then I learned this wont read DSD, and I have a ton of those downloads, so I opted for the PS Audio StellarGold DAC instead. It has a few more features, but in my A/B level matched (closely so using my real SPL meter) it was a really difficult call to say which sounded better. At about 2/3 the price, the Yggdrasil did just fine and if I were being honest, what really decided it for me was that the PS AUdio stellargold chassis matched my StellarGold preamp. SO Im keeping it. But honestly, the Schiit sounds just as good. Its in perfect condition and I listed this as open box because I literally have used it no more than about 15 minutes to test against the PS Audio. I have ALL of the original unused accessories, manual, all packaging. It really is like new. Also, it has the upgrade option of the Unisom USB. So thats the Yggdrasil + Less is More with Unisom USB. Includes all original accessories and packaging including remote, power cable, owners manual. That retails new for $2299, so a great chance to get a fine unit and save big. Good luck bidding. Domestic shipping only.

Audio-GD R2R11 Kopfhrerverstrker mit integriertem R2R DAC. Inkl. Netzkabel und USB-B auf USB-A Anschlusskabel. Der DAC/AMP funktioniert einwandfrei und zeichnet sich durch einen warmen, unaufdringlichen Klang aus. Er harmonierte bei mir super mit dem Sennheiser HD 560s. Kopfhrer-Ausgangsleistung: 3500mW (25 Ohm) / 1800mW (50 Ohm) / 900mW (100 Ohm) / 300mW (300 Ohm) / 150mW (600 Ohm). Privatverkauf ohne Garantie, Gewhrleistung und Rcknahme.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Schiit Audio Yggdrasil Multibit DAC Product SKU: 54107 Voltage: 120V # of Owners: 2 Service History: None Serial Number: B1004213 Age: Unknown Tobacco Exposure: No MSRP: $2299 Cosmetic Description: Very good condition with minimal visible cosmetic wear including a nick on the top surface of the unit.  This item has some very light wear but still presents like new from your listening position. What is Included: DAC, Power cable, Factory packaging Other Notes: Forget everything you know about DACs. Yggdrasils unique True Multibit™ architecture combines integrated multibit D/A converters with a proprietary time- and frequency-domain optimized digital filter that preserves the original samples. -Schiit Audio Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $55- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Audio GD R-1 DAC; D/A Converter Product SKU: 58304 Age: Less than 1 year Tobacco Exposure: No MSRP: $1199 Voltage: 120V # of Owners: 1 Service History: None Cosmetic Description: Excellent condition with no notable blemishes.  What is Included: DAC, Power cable, Factory packaging Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $27- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Audio Gd R2R-11 Dac Preamp Headphone Amp The unit is in excellent condition overall. There is a scratch on the bottom. I will also include a standard ICE power cord. Note, the USB cable will NOT be included. The DAC and headphone amp feature works perfectly. Feel free to contact me for more information.

Schiit Audio Yggdrasil OG DAC. Overall great condition with minor wear pictured. In original Schiit box. Also have the Unison USB uninstalled if interested. Any questions just ask!

Selling this beast of a headphone Amp Dac Pre Amp by Audio GD. This is the NFB 11-28 Jam packed with features. Comes with power cord. May show slight signs wear but presents very wellI. Items other than the Audio GD pictured ARE NOT INCLUDEDDirect from manufacturer. Fully discrete analog stages without any OPA and de-coupling caps in the signal path. Non- feedback ACSS analog amplifiers . Built with 4 pcs 20W (in total 80W) high speed Toshiba output transistors, able to drive most of the headphones out there . Total of 6 groups dedicated power circuits are used to purify the power supply. High-End grade parts built in , ALPS 27 volume pot . CMC pure copper RCA sockets ect. 3 channels digital input : coaxial / Optical / USB DAC output : RCA (User can setting with either variable level as DAC with preamp combo or fixed output level as dedicated DAC ) Headphone output : 6.3MM SE The NFB-11 applies the newest ESS high-end Sabre32 DA chip ES9028 which can support up to 32Bit/384KHz input . To be achieve the best performance of ES9028 , must work in current output mode. in voltage output model, there is -12DB THD+N loss . The standard current model design usually need 3 amps (OPA) , the first amp implements I/V conversion, the ES9028 output current signal to voltage signal . The second amp is responsible for conversion balanced signal ,to single-ended signal and implement the low pass analog filter , then go through the volume control fed to the third amp, (the headphone amp ). Every amp usually have two gain stages built in to the ES9028 chip . Signal must go through total of 6 gain stages and finally arrive at the output stage. The NFB-11 applies Non-feedback ACSS design. The ES9028 feed to the ACSS circuit without any OPAs . The ACSS circuit naturally working in current mode . The ACSS amp only have one current gain stage , the ES9028 output signal only goes through one stage . The shortest signal path can reproduce the best detail and dynamics almost without any sound coloration .It showes the real performance of the ES9028 dac. So our ACSS design is the best combo with ES9028 to achieve the best performance .

Selling this beast of a headphone Amp Dac Pre Amp by Audio GD. This is the NFB 11-28 Jam packed with features. Comes with power cord. May show slight signs wear but presents very wellI. Items other than the Audio GD pictured ARE NOT INCLUDEDDirect from manufacturer. Fully discrete analog stages without any OPA and de-coupling caps in the signal path. Non- feedback ACSS analog amplifiers . Built with 4 pcs 20W (in total 80W) high speed Toshiba output transistors, able to drive most of the headphones out there . Total of 6 groups dedicated power circuits are used to purify the power supply. High-End grade parts built in , ALPS 27 volume pot . CMC pure copper RCA sockets ect. 3 channels digital input : coaxial / Optical / USB DAC output : RCA (User can setting with either variable level as DAC with preamp combo or fixed output level as dedicated DAC ) Headphone output : 6.3MM SE The NFB-11 applies the newest ESS high-end Sabre32 DA chip ES9028 which can support up to 32Bit/384KHz input . To be achieve the best performance of ES9028 , must work in current output mode. in voltage output model, there is -12DB THD+N loss . The standard current model design usually need 3 amps (OPA) , the first amp implements I/V conversion, the ES9028 output current signal to voltage signal . The second amp is responsible for conversion balanced signal ,to single-ended signal and implement the low pass analog filter , then go through the volume control fed to the third amp, (the headphone amp ). Every amp usually have two gain stages built in to the ES9028 chip . Signal must go through total of 6 gain stages and finally arrive at the output stage. The NFB-11 applies Non-feedback ACSS design. The ES9028 feed to the ACSS circuit without any OPAs . The ACSS circuit naturally working in current mode . The ACSS amp only have one current gain stage , the ES9028 output signal only goes through one stage . The shortest signal path can reproduce the best detail and dynamics almost without any sound coloration .It showes the real performance of the ES9028 dac. So our ACSS design is the best combo with ES9028 to achieve the best performance .

ADCOM GDA-600 Digital to Analog ConverterAudio DACUntested + Cables What you see in the pictures is what you will receive. There is no power cord but they are readily available. The 2 braided purple cables are ~7 feet long. The Adcom will be carefully wrapped and shipped in a cardboard box. Shipping will be via USPS Ground Advantage, FedEx, or UPS and cost $17.00

ADCOM GDA 700 DIGITAL-TO-ANALOG CONVERTER AUDIO DAC + HDCD IN GOOD WORKING CONDITION ** PLEASE SEE ALL THE PICTURE FOR MORE DETAIL, WHAT YOU SEE AND WHAT YOU WILL GET** IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 1-2 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

Working Condition: ExcellentCosmetic Condition: ExcellentOwners: 1Tobacco Exposure: NoService History: NoneMSRP: $2400Included: Manual, OEM Power Cable, Factory packagingShipping: FedEx Ground (CONUS only)I bought this new from Schiit Audio in July ‘18 and used sparingly in my audio room in a second home. Love, love, love the smooth detail from an ink-black background this DAC provides - probably the best DAC I ever owned; but due to health issues must sell all but a couple prized pieces that will go to kids. Even though its a terrible cliche, Im kind of assuming that if you are looking at this, you will have read lots of reviews and are familiar with its excellent performance so wont list the specs here. Hope someone can put this outstanding piece to good use. You will absolutely love the sound.

Selling this beast of a headphone Amp Dac Pre Amp by Audio GD. This is the NFB 11-28 I won’t accept anything less than 20% off list. Comes with power cord and I can throw in a USB cable. May show slight signs wear but presents very well. Dragon not for sale nor any other equipment possibly shown except the Audio gd NFB 11-28 Direct from manufacturer. Fully discrete analog stages without any OPA and de-coupling caps in the signal path. Non- feedback ACSS analog amplifiers . Built with 4 pcs 20W (in total 80W) high speed Toshiba output transistors, able to drive most of the headphones out there . Total of 6 groups dedicated power circuits are used to purify the power supply. High-End grade parts built in , ALPS 27 volume pot . CMC pure copper RCA sockets ect. 3 channels digital input : coaxial / Optical / USB DAC output : RCA (User can setting with either variable level as DAC with preamp combo or fixed output level as dedicated DAC ) Headphone output : 6.3MM SE The NFB-11 applies the newest ESS high-end Sabre32 DA chip ES9028 which can support up to 32Bit/384KHz input . To be achieve the best performance of ES9028 , must work in current output mode. in voltage output model, there is -12DB THD+N loss . The standard current model design usually need 3 amps (OPA) , the first amp implements I/V conversion, the ES9028 output current signal to voltage signal . The second amp is responsible for conversion balanced signal ,to single-ended signal and implement the low pass analog filter , then go through the volume control fed to the third amp, (the headphone amp ). Every amp usually have two gain stages built in to the ES9028 chip . Signal must go through total of 6 gain stages and finally arrive at the output stage. The NFB-11 applies Non-feedback ACSS design. The ES9028 feed to the ACSS circuit without any OPAs . The ACSS circuit naturally working in current mode . The ACSS amp only have one current gain stage , the ES9028 output signal only goes through one stage . The shortest signal path can reproduce the best detail and dynamics almost without any sound coloration .It showes the real performance of the ES9028 dac. So our ACSS design is the best combo with ES9028 to achieve the best performance .

I am the original owner, and bought it new last year. I have too many amps, and am thinning the collection.Standard remote control included. From the website:The R28 NOS is a Fully Balanced solid state preamp with 9.5 watts per channel headphone amp and a resistor ladder DAC. We continue to be shocked at this level of sonic performance along with this feature set at this cost. Comparable products sell for $3000.00-$4000.00 range from the competition. The preamp or DAC alone is worth he price of the entire product. DAC’s of this quality typically sell for over $3000.00. The R28 features 8 fully discrete R2R DAC modules to combine into a real balanced push/pull digital decoder as well as 4 fully discrete real balanced DSD native decoders. The DAC uses two 90/98 MHz Accusilicon 318B femto clocks to provide ultra low jitter. The Amanero USB input supports 32bit / PCM384K PCM and up to DSD 512 asynchronous transfer. Clocking is done by a custom programmed FPGA. The whole digital circuit is built around one custom programmed FPGA and 5 CPLD programmable chip sets to separate the different circuits for avoid any interference in the data process in parallel mode. The R28 headphone amp has two gain modes, 12DB in the low gain position to drive higher efficiency headphones at over 95dB sensitivity, and 22DB on high gain with the full 9.5 watts to drive any lower efficiency phones such as the HifiMan HE6 at 85dB efficiency. The custom internal software that runs the unit is upgradable to improve sound quality in the future. All digital process mode settings are accessible by buttons on the front. The analog output stage is superb and has a tremendous effect on any DAC’s sound quality. After the D/A conversion by the R2R D/A modules the analog signal is run by fully discrete matched-transistor output stages. These high speed special ACSS output stages are zero-feedback and a current driven design as opposed to the voltage design of most other DAC’s. They are Special because almost all other designs need to convert the signal multiple times from and to current or voltage, resulting in less detail and a less defined sound stage. The Output stage in the R28 has 4 pairs of 15W transistors to offer tremendous output capability. This Diamond Differential design avoids switch distortion. It works in full Class A mode but doesn’t draw large idle current. This balanced drive design lowers noise and distortion and improves the sound stage presentation and transparency.

Audio-gd NFB-12 Headphone AMP/DAC Preamps 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

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

This ADCOM GDA-700 Digital-to-Analog Converter with HDCD is a top-of-the-line unit that offers exceptional audio quality and versatility. It has four different audio inputs including Coaxial Digital, Digital Optical TOSLINK, AES/EBU XLR, and S/PDIFF, AES/EBU input formats. It also features Dual Burr Brown PCM-1702P, Phase Inverstion Switch, Digital, and Pacific Microsonics PMD-100 HDCD, making it a great choice for audiophiles. This unit is in excellent working condition and has been thoroughly tested to ensure that it meets the highest standards of quality. Whether youre looking for a new digital-to-analog converter for your home theater system or simply looking to upgrade your audio setup, this ADCOM GDA-700 is an excellent choice. I purchased this item new and was in my 2 channel system for years. Works perfect. Thanks

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

I am the original owner, and bought it new last year. I have too many amps, and am thinning the collection.Standard remote control included. From the website:The R28 NOS is a Fully Balanced solid state preamp with 9.5 watts per channel headphone amp and a resistor ladder DAC. We continue to be shocked at this level of sonic performance along with this feature set at this cost. Comparable products sell for $3000.00-$4000.00 range from the competition. The preamp or DAC alone is worth he price of the entire product. DAC’s of this quality typically sell for over $3000.00. The R28 features 8 fully discrete R2R DAC modules to combine into a real balanced push/pull digital decoder as well as 4 fully discrete real balanced DSD native decoders. The DAC uses two 90/98 MHz Accusilicon 318B femto clocks to provide ultra low jitter. The Amanero USB input supports 32bit / PCM384K PCM and up to DSD 512 asynchronous transfer. Clocking is done by a custom programmed FPGA. The whole digital circuit is built around one custom programmed FPGA and 5 CPLD programmable chip sets to separate the different circuits for avoid any interference in the data process in parallel mode. The R28 headphone amp has two gain modes, 12DB in the low gain position to drive higher efficiency headphones at over 95dB sensitivity, and 22DB on high gain with the full 9.5 watts to drive any lower efficiency phones such as the HifiMan HE6 at 85dB efficiency. The custom internal software that runs the unit is upgradable to improve sound quality in the future. All digital process mode settings are accessible by buttons on the front. The analog output stage is superb and has a tremendous effect on any DAC’s sound quality. After the D/A conversion by the R2R D/A modules the analog signal is run by fully discrete matched-transistor output stages. These high speed special ACSS output stages are zero-feedback and a current driven design as opposed to the voltage design of most other DAC’s. They are Special because almost all other designs need to convert the signal multiple times from and to current or voltage, resulting in less detail and a less defined sound stage. The Output stage in the R28 has 4 pairs of 15W transistors to offer tremendous output capability. This Diamond Differential design avoids switch distortion. It works in full Class A mode but doesn’t draw large idle current. This balanced drive design lowers noise and distortion and improves the sound stage presentation and transparency.

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