The DROP + Grace Design Standard DAC Balanced is a high-quality Digital Analog Converter with both analog and digital features. It comes in a sleek black color and offers a USB Micro and Component audio inputs. The DAC also includes RCA, Headphone Jack, and Stereo L/R RCA audio outputs, providing flexibility in connecting to various audio devices. Designed by Grace Design, known for their audio expertise, this DAC is a versatile and reliable option for enhancing your home audio setup.

Purchased new - Has sat on shelf its entire life, is in perfect condition and works perfectly. Please note that this is a DAC only, it is not an amp. Cable Included - I do not have the original box anymore, but I will pack it well. Made in collaboration with Grace Design, a company known for its incredibly accurate, transparent studio gear, the Standard DAC sets a new standard in entry-level DACs. It applies Grace Design’s pro-audio expertise to a simpler, more accessibly priced model that makes a great addition to any home or office system. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. Compact, capable, and easy to use, it could be all the DAC you need. SpecsMassdrop x Grace DesignChassis material: Anodized aluminumDAC chip: AKM AK4452Audio formats: Up to 24 bit/96 kHzFrequency response, 20Hz–20 kHz: +/-0.02 dBTHD+N at 20 Hz -0.15 dBFS: 0.0013%THD+N at 100 Hz, -0.15 dBFS: 0.0013%THD+N at 10 kHz, -0.15 dBFS: 0.0024%IMD CCIF, -6.03 dBFS, 19/20kHz, 24/96k: 0.0005%IMD SMPTE -6 dBFS, 24/96k: 0.0015%Noise, A-weighted: -105 dBuDynamic range, A-weighted: >114 dBLinearity, -90 dBFS: -0.07 dBCrosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dBSum of jitter components at 11,025 Hz, -1 dBFS: -133 dBMaximum output: 2.15VRMSUSB controller: XMOS XU208-128-TQ64Inputs: USB microOutput: ? in (3.5 mm) TRS, RCAPower: USB Class 1 (no drivers required for Windows, Mac, or Linux)Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Length with RCA port: 4.2 in (105.5 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g)

Combination SDAC + Amp. Good cosmetic condition with a few blemishes and one missing foot (easily replaced). Excellent functional condition. Includes original power supply. Experience high-quality sound with the Massdrop x Grace Design 02 + SDAC Digital Amplifier & DAC. This amplifier features USB and stereo L/R RCA audio inputs, with one input and one output. It is perfect for enhancing your music listening experience, whether you are at home or on-the-go. The Massdrop x Grace Design 02 + SDAC Digital Amplifier & DAC is designed for use with a variety of devices, making it a versatile addition to any home audio setup. Its compact size and sleek design make it easy to place in any room, while its powerful sound ensures an immersive listening experience. Order now and start enjoying your favorite tunes like never before!

Massdrop x Grace Design m9XX Headphone DAC/Amp Black Compact USB Digital Display DescriptionMassdrop x Grace Design m9XX Headphone DAC/Amp Black Compact USB Digital DisplayProduct Detail• Brand: Massdrop x Grace Design • Model: Massdrop x Grace Design m9XX • Color: Black• Type: Headphone DAC/Amp Please message me if you have any questions.

This is my second m9XX after I foolishly sold the first and went down the rabbit hole of chasing marginal gains. Its basically the perfect headphone amp: near 0 ohm output impedance, good power even for 300 ohm Sennheiser HPs, DAC measures perfectly flat, DAC works without any user input, left headphone output mutes the line out automatically. Also, a large metal top knob is simply the best. The unit works great. Theres some small nicks in the paint to be very picky. The user manual is still on Graces site for perusal. Included with the amp is a USB brick for high power mode. No cables are included, youll need 1 micro USB cable for power and another or a Toslink optical cable for the DAC. It can also be used with a single USB cable in low power mode. Ill ship it within 2 business days with USPS.

In Lyons, Colorado, near the foothills of the Rocky Mountains, Grace Design produces some of the most innovative, highly respected pro audio gear on the market. Brothers Michael and Eben Grace started the company 27 years ago, and today, their products can be found around the world, from home studios to the scoring stage at Skywalker Sound. They’re widely praised for delivering a combination of non-fatiguing performance, extremely detailed sound, and legendary reliability.SpecsDrop + Grace DesignAnodized aluminum chassisUSB bus-powered designIf using SPDIF only, requires external USB charger - 5V, 1amp wallwart (not supplied)AKM AK4452 DAC chipLatest-generation XMOS xCORE-200 USB processor0.5% precision thin metal film resistors in the signal pathNo capacitors in the signal pathAudiophile components and design throughoutCoaxial connector for SPDIF (IEC-60958) audio input (transformer coupled and ground isolated)SPDIF input decoding and clock recovery is done with AKM 4117 input receiverSample rates up to 192 kHz are supportedUSB 2.0/1.0 input type-B3.5mm stereo line output jack (2.15VRMS)3-pin XLR balanced line output(4.3VRMS)USB 1.0 connectivity: Driverless plug-and-play operation on Mac and Windows PCs, supports sample rates up to 96kHz with 24-bit precisionUSB Audio Class 2 operation via toggle switch: Driverless operation on Mac OS and Windows 10, supports sample rates up to 384 kHz and DSD256Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g) IncludedManufacturer’s 1-year warranty3.3 ft (1 m) USB-B to USB-A cable

Mass Drop Objective 2 O2 Headphone Amp & Grace Design Standard DAC MASSDROP OBJECTIVE 2 HEADPHONE AMP: DESKTOP EDITION In 2011, audio engineer NwAvGuy published a blog post titled “O2 Headphone Amp,” in which he outlined his philosophy on defining sound quality and detailed his ideal audiophile circuit design. Our version of NwAvGuys famous O2 amplifier, the Objective 2 Desktop Edition features updates based on feedback from the community. It’s an ideal baseline reference amplifier, capable of powering everything from IEMs to HD 800s with linear ease. SPECSInput: RCA Output: 6.35 mm Power: Battery (included) or AC adapter (included)Gain: 2.5x and 6.5x / 1.0x and 3.3x (select your configuration)Volume potentiometer taper: Alps 15A or 3BFrequency response: +/-0.1 dB (20 Hz–20 kHz)THD at 1 kHz, 150 ohms: 0.0016%IMD CCIF at 15 ohms: 0.001%IMD SMPTE: 0.002%Noise (ref 400 mV): -105 dBMax output (33 ohms): 613 mWMax output (150 ohms): 355 mWMax output (600 ohms): 88 mWOutput impedance: 0.54 ohmsCrosstalk (15 ohms): -65 dBChannel balance (50% volume): 0.6 dBCase dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm)Weight: 9 oz (255 g)INCLUDED110V AC adapter 2 - 9v rechargeable batteries (installed) RCA CableMassdrop X Grace Design Standard DAC Made in collaboration with Grace Design, a company known for its incredibly accurate, transparent studio gear, the Standard DAC sets a new standard in entry-level DACs. It applies Grace Design’s pro-audio expertise to a simpler, more accessibly priced model that makes a great addition to any home or office system. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. Compact, capable, and easy to use, it could be all the DAC you need.SPECS Massdrop x Grace DesignChassis material: Anodized aluminumDAC chip: AKM AK4452Audio formats: Up to 24 bit/96 kHzFrequency response, 20Hz–20 kHz: +/-0.02 dBTHD+N at 20 Hz -0.15 dBFS: 0.0013%THD+N at 100 Hz, -0.15 dBFS: 0.0013%THD+N at 10 kHz, -0.15 dBFS: 0.0024%IMD CCIF, -6.03 dBFS, 19/20kHz, 24/96k: 0.0005%IMD SMPTE -6 dBFS, 24/96k: 0.0015%Noise, A-weighted: -105 dBuDynamic range, A-weighted: >114 dBLinearity, -90 dBFS: -0.07 dBCrosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dBSum of jitter components at 11,025 Hz, -1 dBFS: -133 dBMaximum output: 2.15VRMSUSB controller: XMOS XU208-128-TQ64Inputs: USB microOutput: ? in (3.5 mm) TRS, RCAPower: USB Class 1 (no drivers required for Windows, Mac, or Linux)Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Length with RCA port: 4.2 in (105.5 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g)

Verkauft wird ein Kopfhörerverstärker mit folgenden Merkmalen: Aritkelzustand: Gebraucht aus einem tierfreien Nichtraucherhaushalt - Zustand bitte den Bildern entnehmen.Lieferumfang: Verstärker, USB-Kabel, Netzteil, Installations-CD, Benutzerhandbuch, alles mit OVP.Verkaufsgrund: Wechsel zu einem anderem Audiosystem - der Verstärker wird nicht mehr gebraucht. Dr. DAC prime bietet alles, was Sie für die Aufnahme und Wiedergabe digitaler Musik in bestmöglicher Audioqualität benötigen, egal ob zuhause oder unterwegs.Dr. DAC prime arbeitet mit bis zu 24bit/192kHz und ist nicht nur mit einem optischen und koaxialen S/PDIF-Eingang ausgestattet, sondern es bietet auch ein vollwertiges USB Audiointerface (bis zu 24bit/96kHz) für den bitgenauen Transfer von Audiodaten. Eingehende digitale Signale können bei Bedarf auf 192kHz per Upsampling umgewandelt werden, dazu wird ein TI SRC4382 Abtastenratenwandler verwendet.Das analoge Ausgangssignal wird über einen TI PCM1796 D/A-Wandler mit 123dB(a) Dynamikumfang generiert, davor sitzen 3 gesockelte LME49860NA 8-pin Operationsverstärker. Der integrierte Kopfhörerverstärker verfügt über 3,5 mm und 6,3 mm Stereo Klinkenbuchsen. Das Line-Ausgangssignal kann auf Wunsch fixiert direkt mit voller Dynamik ausgegeben werden.Dr. DAC prime bietet noch mehr: das Gerät verfügt auch über Line-Eingänge (AKM AK5386 A/D-Wandler mit 110 dB) und über einen optischen und koaxialen S/PDIF-Eingang, so dass Aufnahmen in bester Qualität möglich sind.Dr. DAC prime arbeitet unter Windows 10, Windows XP, Windows Vista, Windows 7, Windows 8.1 und Mac OS X ohne spezielle Treiber - Plug & Play in Perfektion, einfacher geht es wirklich nicht. Außerdem steht ein ASIO 2.0 kompatibler Treiber für Windows 10, XP, Vista, 7 & 8 zur Verfügung. GerätebeschreibungDigital-/Analog-Wandler (und Analog-/Digital-Wandler)USB Audiointerface für Audioaufnahme und -wiedergabeKopfhörerverstärkerSpezifikationen und Leistungsmerkmalemax. 24 Bit/192 kHz S/PDIF Eingang: koaxial & optisches Comboreceiver Modul- S/PDIF Eingang => S/PDIF Ausgang- S/PDIF Eingang => Line & Kopfhörer Ausgang- S/PDIF Eingang => Computeraufnahmemax. 24 Bit/96 kHz bitgenauer S/PDIF Ausgang: koaxial & optisches Combotransmitter Modul- USB Eingang => S/PDIF Ausgang- AC-3/DTS non-PCM Pass Thru (Windows Vista / 7/ 8/ 10)24 Bit/192 kHz Upsampling S/PDIF Ausgang (optisch & koaxial)- USB Eingang => 192 kHz S/PDIF Ausgang- koaxial Eingang => 192 kHz S/PDIF Ausgang- optischer Eingang => 192 kHz S/PDIF Ausgang2 3,5 mm Miniplug-Toslink Adapter mitgeliefertTI SRC4382 Highend Combo Sampleratenwandler: 32 kHz ~ 192 kHz UnterstützungS/PDIF & USB Eingang Bypass, 192kHz Upsampling Unterstützung mit SRC4382+/-1 ppm 24.576 MHz TCXO für S/PDIF EingangTenor TE7022L USB Audio Controller+/-1ppm 12.000 MHz TCXO für USB Eingang auf S/PDIF / I2S AusgangStereo Line Eingang mit Cinch Buchsen- Line Eingang => Line Ausgang & Kopfhörer Ausgang- AKM AK5386 24 Bit/192 kHz A/D-Wandler (S/N Ratio 110 dB)- 1 gesockelter 8 pin DIP Opamp (S4580P)Stereo Line Ausgang mit Cinch Buchsen- Anti-Pop Schaltung- 3 gesockelte 8 pin DIP Opamps (LME49860NA)- TI / Burr Brown PCM1796 24 Bit/192 kHz 123 dB D/A-WandlerStereo Kopfhörer Ausgang- 6,3 mm Klinkenbuchse- 3,5 mm Mini-KlinkenbuchseLautstärkeregler- fixierter Ausgangspegel - FIX Schalterstellung- variabler Ausgangspegel - VAR Schalterstellung- hochwertiges Potentiometer- Aluminiumknopf aus einem StückLine Ausgangsschalter für fixierte (FIX) oder variable (VAR) AusgangslautstärkeQuellenwahl (USB-ANALOG-DIGITAL Schalter): 3-Position Umschalter mit LEDs (grün)Mute (Stummschalter) für Line Ausgang (ohne Einfluss auf Kopfhörerausgang)Standby/Power Schalter mit LED- Standby (rot)- Power (blau)S/PDIF & USB Eingang Bypass / 192 kHz Upsampling: 2-Positionen SchalterMulticolor-ED Anzeige- MUTE (rot)- NO SIGNAL (orange)- NON-PCM (grün)- PCM (grün)- 192kHz Upsampling (blue)DC 9V~12V Netzteilanschluss12V / 1.5A DC-Adapternetzteil mitgeliefertAbmessungen: ca. 15,0cm x 10,4cm x 3,8cmASIO 2.0 kompatibler Treiber für Windows XP, Vista, 7 ,8 & 10

In Lyons, Colorado, near the foothills of the Rocky Mountains, Grace Design produces some of the most innovative, highly respected pro audio gear on the market. Brothers Michael and Eben Grace started the company 27 years ago, and today, their products can be found around the world, from home studios to the scoring stage at Skywalker Sound. They’re widely praised for delivering a combination of non-fatiguing performance, extremely detailed sound, and legendary reliability.SpecsDrop + Grace DesignAnodized aluminum chassisUSB bus-powered designIf using SPDIF only, requires external USB charger - 5V, 1amp wallwart (not supplied)AKM AK4452 DAC chipLatest-generation XMOS xCORE-200 USB processor0.5% precision thin metal film resistors in the signal pathNo capacitors in the signal pathAudiophile components and design throughoutCoaxial connector for SPDIF (IEC-60958) audio input (transformer coupled and ground isolated)SPDIF input decoding and clock recovery is done with AKM 4117 input receiverSample rates up to 192 kHz are supportedUSB 2.0/1.0 input type-B3.5mm stereo line output jack (2.15VRMS)3-pin XLR balanced line output(4.3VRMS)USB 1.0 connectivity: Driverless plug-and-play operation on Mac and Windows PCs, supports sample rates up to 96kHz with 24-bit precisionUSB Audio Class 2 operation via toggle switch: Driverless operation on Mac OS and Windows 10, supports sample rates up to 384 kHz and DSD256Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g) IncludedManufacturer’s 1-year warranty3.3 ft (1 m) USB-B to USB-A cable

Massdrop x Alex Cavalli Liquid Carbon X amp, built by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The Liquid Carbon X is a solid-state, fully balanced, bridged amp with a clear, transparent, non-fatiguing sound. It has the same topology as the celebrated Liquid Carbon, along with updates to the form factor, switching power supply, and input and output jacks. The four amplifier sections—two per channel—create a clean, distortion-free signal and a quiet background. It retains the Liquid Carbon’s single-ended output for convenience with unbalanced cables, and also has a balanced output for when you need more power and ultimate performance. The Liquid Carbon X adds a protective offset detector, and for quieter operation and compatibility with worldwide voltages, moves the power supply out of the chassis. Plus, you can adjust the gain on the front panel for different headphones. The Standard DAC sets a new standard in entry-level DACs. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

Well reviewed on Head-Fi, HiFi Insider, and beyond, the Massdrop x Grace Design m9XX was inspired by the world-class m920 DAC/amp—offering the same performance level for audiophile applications, now at a far more accessible price. Working with Michael and Eben from Grace Design, we stripped the m920 of its lesser-used pro audio hardware and improved upon the audiophile features where possible, all while retaining the high-res DAC implementation and super-clean solid-state amplification. The result? A portable, affordable, and sleek piece of gear; one that benefits from Grace Design’s decades of expertise in analog circuitry and better serves the needs of the audiophile community. The digital section of the m9XX utilizes a top-of-the-line AKM chip. Part of the newest generation of converters from AKM, the AK4490 features 256x oversampling, 32-bit processing, and sample rate compatibility from 44.1 kHz all the way to DSD128. The m9XX even offers a variety of anti-aliasing filters to choose from, something that is rarely included in this price range or physical size. The digital USB controller is an eight-core XMOS processor that operates in asynchronous mode and is immune to USB buss jitter, which can adversely affect sound quality in the transfer. The m9XX is also capable of receiving a digital signal up to 96 kHz/24 bit via Toslink. The Grace m9XX has a direct-coupled design with no capacitors in the signal path and the output amplifier is DC servo-controlled, ensuring zero phase shift for the ultimate in clarity and resolution. High-quality resistors in the circuit path help the m9XX deliver a low-noise, low-distortion signal, along with dynamic accuracy and excellent channel matching to the headphones. The amplifier section is built around the TI THS6012 current feedback chipset, but has been modified with a proprietary circuit topology to zero output impedance for a maximized damping factor, even with sensitive IEMs. This allows the m9XX to deliver all of the ultra-high resolution and clarity of a current feedback amp with all of the control and dynamics of a zero-output impedance headphone amplifier. The compact m9XX even includes new crossfeed circuitry that sonically distributes the stereo image across your headphones’ soundstage, helping to reduce listening fatigue over time. Toggle this on or off from the device menu. The power supply design of the m9XX is unique. In total, there are five separate power supplies at work delivering clean, isolated power to the digital and headphone amplification sections. The back panel features two micro-B USB connectors, one for connecting to a wall charger and the other for connecting to a USB source. The m9XX can independently operate from its USB bus supply up to 100 mW of power into a 32-ohm load (per channel with two channels driven). Plug the device into the wall for additional amplification power up to 1,000 mW into 32 ohms (per channel with two channels driven). The power supply in this compact device is carefully filtered, with multi-tiered noise suppression for artifact-free playback from the sensitive DAC circuits and amplification unrestricted by any annoying buzz or background hiss. All that’s left is your music ripe with dynamic response, crystal-clear detail, and musicality unheard of in this price range. From seller: Works/sounds great. Sold as-is with no USB cable or power supply. Uses conventional USB micro-B plug for both computer connection and optional DC power via 5V/2A wall charger (see above).

Well reviewed on Head-Fi, HiFi Insider, and beyond, the Massdrop x Grace Design m9XX was inspired by the world-class m920 DAC/amp—offering the same performance level for audiophile applications, now at a far more accessible price. Working with Michael and Eben from Grace Design, we stripped the m920 of its lesser-used pro audio hardware and improved upon the audiophile features where possible, all while retaining the high-res DAC implementation and super-clean solid-state amplification. The result? A portable, affordable, and sleek piece of gear; one that benefits from Grace Design’s decades of expertise in analog circuitry and better serves the needs of the audiophile community. The digital section of the m9XX utilizes a top-of-the-line AKM chip. Part of the newest generation of converters from AKM, the AK4490 features 256x oversampling, 32-bit processing, and sample rate compatibility from 44.1 kHz all the way to DSD128. The m9XX even offers a variety of anti-aliasing filters to choose from, something that is rarely included in this price range or physical size. The digital USB controller is an eight-core XMOS processor that operates in asynchronous mode and is immune to USB buss jitter, which can adversely affect sound quality in the transfer. The m9XX is also capable of receiving a digital signal up to 96 kHz/24 bit via Toslink. The Grace m9XX has a direct-coupled design with no capacitors in the signal path and the output amplifier is DC servo-controlled, ensuring zero phase shift for the ultimate in clarity and resolution. High-quality resistors in the circuit path help the m9XX deliver a low-noise, low-distortion signal, along with dynamic accuracy and excellent channel matching to the headphones. The amplifier section is built around the TI THS6012 current feedback chipset, but has been modified with a proprietary circuit topology to zero output impedance for a maximized damping factor, even with sensitive IEMs. This allows the m9XX to deliver all of the ultra-high resolution and clarity of a current feedback amp with all of the control and dynamics of a zero-output impedance headphone amplifier. The compact m9XX even includes new crossfeed circuitry that sonically distributes the stereo image across your headphones’ soundstage, helping to reduce listening fatigue over time. Toggle this on or off from the device menu. The power supply design of the m9XX is unique. In total, there are five separate power supplies at work delivering clean, isolated power to the digital and headphone amplification sections. The back panel features two micro-B USB connectors, one for connecting to a wall charger and the other for connecting to a USB source. The m9XX can independently operate from its USB bus supply up to 100 mW of power into a 32-ohm load (per channel with two channels driven). Plug the device into the wall for additional amplification power up to 1,000 mW into 32 ohms (per channel with two channels driven). The power supply in this compact device is carefully filtered, with multi-tiered noise suppression for artifact-free playback from the sensitive DAC circuits and amplification unrestricted by any annoying buzz or background hiss. All that’s left is your music ripe with dynamic response, crystal-clear detail, and musicality unheard of in this price range. From seller: Works/sounds great. Sold as-is with no USB cable or power supply. Uses conventional USB micro-B plug for both computer connection and optional DC power via 5V/2A wall charger (see above).

Massdrop x Alex Cavalli Liquid Carbon X amp, built by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The Liquid Carbon X is a solid-state, fully balanced, bridged amp with a clear, transparent, non-fatiguing sound. It has the same topology as the celebrated Liquid Carbon, along with updates to the form factor, switching power supply, and input and output jacks. The four amplifier sections—two per channel—create a clean, distortion-free signal and a quiet background. It retains the Liquid Carbon’s single-ended output for convenience with unbalanced cables, and also has a balanced output for when you need more power and ultimate performance. The Liquid Carbon X adds a protective offset detector, and for quieter operation and compatibility with worldwide voltages, moves the power supply out of the chassis. Plus, you can adjust the gain on the front panel for different headphones. The Standard DAC sets a new standard in entry-level DACs. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

Experience high-quality audio with the Massdrop x Grace Design m9XX Headphone DAC/Amp. This compact and sleek black device features a digital display and two inputs for versatile connectivity (USB 2.0 & Toslink). With three outputs, you can easily connect to your favorite headphones and enjoy superior sound quality. Designed for music enthusiasts, this headphone DAC/Amp boasts a number of impressive features, including a powerful 2x 70W output, a compact design, and a user-friendly interface. In excellent cosmetic and working condition. I ship to the US only using USPS. I ship items on Mondays and Thursdays. Items ship the next Monday/Thursday after payment is received. I accept PayPal only, please, due within three days of action close. No returns, so please ask any questions prior to bidding. Thank you for looking, good luck bidding, and please check out my feedback and other items for sale.

Massdrop x Alex Cavalli Liquid Carbon X amp, built by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The Liquid Carbon X is a solid-state, fully balanced, bridged amp with a clear, transparent, non-fatiguing sound. It has the same topology as the celebrated Liquid Carbon, along with updates to the form factor, switching power supply, and input and output jacks. The four amplifier sections—two per channel—create a clean, distortion-free signal and a quiet background. It retains the Liquid Carbon’s single-ended output for convenience with unbalanced cables, and also has a balanced output for when you need more power and ultimate performance. The Liquid Carbon X adds a protective offset detector, and for quieter operation and compatibility with worldwide voltages, moves the power supply out of the chassis. Plus, you can adjust the gain on the front panel for different headphones. The Standard DAC sets a new standard in entry-level DACs. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

Listing Includes: O2 Headphone Amp AC power adapter rca cables 2 9v rechargeable batteries (installed) Grace Designs SDAC usb cable MASSDROP OBJECTIVE 2 HEADPHONE AMP: DESKTOP EDITION In 2011, audio engineer NwAvGuy published a blog post titled “O2 Headphone Amp,” in which he outlined his philosophy on defining sound quality and detailed his ideal audiophile circuit design. Our version of NwAvGuys famous O2 amplifier, the Objective 2 Desktop Edition features updates based on feedback from the community. It’s an ideal baseline reference amplifier, capable of powering everything from IEMs to HD 800s with linear ease. SPECSInput: RCA Output: 6.35 mm Power: Battery (included) or AC adapter (included)Gain: 2.5x and 6.5x / 1.0x and 3.3x (select your configuration)Volume potentiometer taper: Alps 15A or 3BFrequency response: +/-0.1 dB (20 Hz–20 kHz)THD at 1 kHz, 150 ohms: 0.0016%IMD CCIF at 15 ohms: 0.001%IMD SMPTE: 0.002%Noise (ref 400 mV): -105 dBMax output (33 ohms): 613 mWMax output (150 ohms): 355 mWMax output (600 ohms): 88 mWOutput impedance: 0.54 ohmsCrosstalk (15 ohms): -65 dBChannel balance (50% volume): 0.6 dBCase dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm)Weight: 9 oz (255 g)INCLUDED110V AC adapter 2 - 9v rechargeable batteries (installed) RCA Cable MASSDROP X GRACE DESIGN STANDARD DAC Made in collaboration with Grace Design, a company known for its incredibly accurate, transparent studio gear, the Standard DAC sets a new standard in entry-level DACs. It applies Grace Design’s pro-audio expertise to a simpler, more accessibly priced model that makes a great addition to any home or office system. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. Compact, capable, and easy to use, it could be all the DAC you need. SPECSMassdrop x Grace DesignChassis material: Anodized aluminumDAC chip: AKM AK4452Audio formats: Up to 24 bit/96 kHzFrequency response, 20Hz–20 kHz: +/-0.02 dBTHD+N at 20 Hz -0.15 dBFS: 0.0013%THD+N at 100 Hz, -0.15 dBFS: 0.0013%THD+N at 10 kHz, -0.15 dBFS: 0.0024%IMD CCIF, -6.03 dBFS, 19/20kHz, 24/96k: 0.0005%IMD SMPTE -6 dBFS, 24/96k: 0.0015%Noise, A-weighted: -105 dBuDynamic range, A-weighted: >114 dBLinearity, -90 dBFS: -0.07 dBCrosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dBSum of jitter components at 11,025 Hz, -1 dBFS: -133 dBMaximum output: 2.15VRMSUSB controller: XMOS XU208-128-TQ64Inputs: USB microOutput: ? in (3.5 mm) TRS, RCAPower: USB Class 1 (no drivers required for Windows, Mac, or Linux)Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Length with RCA port: 4.2 in (105.5 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g)

Massdrop x Alex Cavalli Liquid Carbon X amp, built by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The Liquid Carbon X is a solid-state, fully balanced, bridged amp with a clear, transparent, non-fatiguing sound. It has the same topology as the celebrated Liquid Carbon, along with updates to the form factor, switching power supply, and input and output jacks. The four amplifier sections—two per channel—create a clean, distortion-free signal and a quiet background. It retains the Liquid Carbon’s single-ended output for convenience with unbalanced cables, and also has a balanced output for when you need more power and ultimate performance. The Liquid Carbon X adds a protective offset detector, and for quieter operation and compatibility with worldwide voltages, moves the power supply out of the chassis. Plus, you can adjust the gain on the front panel for different headphones. The Standard DAC sets a new standard in entry-level DACs. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

Condition: Untested and sold as-is. No testing has been done Disclaimer: Item appears to power on or have operable mechanisms in brief testing. It has not been further tested for functionality in any capacity and functionality is not guaranteed. This is a used, donated item that has not been cleaned, serviced or tested for functionality. Unless otherwise stated, items have not been inventoried for completeness. We generally perform power on and basic functional tests on all of our used items. Items with Parts and repair status are either incomplete for parts or has defects that requires expert repairs. Please make sure to check for compatibility before purchase.We will try to provide the best detail on items we sell. Please keep in mind that since all of our listed items are donated, most likely we will not have any background and functional history for them. Please refer to pictures for more additional information. Please contact us via the eBay message system if you have any questions. _____________________________________________________________________________________________________ Thank you for shopping with SF Goodwill! Your generous purchase from Goodwill makes a big difference for local people struggling with unemployment. Your purchase funds job programs and services for people overcoming challenges like homelessness, former incarceration, lack of job skills and limited education. We create second chances through training and the dignity of work. Payment: ??????Payments are due within 7 days from auction end date. Shipping: ??????We do not ship to PO Boxes or Military Addresses (ie: APO/FPO/DPO/etc) Combined Shipping: Yes, We Offer Combined Shipping Discounts! Item with the highest shipping price will be billed at full price shipping, additional items: 75% off each shipping cost Most orders qualify for an automatic combined shipping discount, simply check out and pay! Some items cannot be combined in shipping (fragile, oversize or heavy items) We cannot apply a combined shipping discount after payment has been made Please send us a direct message if you need help, or require a custom combined shipping invoice. Local Pickup: Were offering local pickup effective 11/1/2023. Once the auction has ended, choose the local pickup option during checkout. If you have any issues choosing local pickup, please let us know. Once checkout via local pickup has been completed, please allow 24-48 hours to contact you and schedule your order pickup. Local Pickup is by appointment only. We will not accept on the spot pickups. Orders must be picked up within 7-days of the scheduled appointment. Pickup extensions will not be offered. Contact us for the local pickup instructions. Order Issues and Questions: Problems with your order? Were here to help! Please contact us via the eBay message system if you have any issues with your order. Due to our high volume of sales, please allow 24-48 hours for us to respond to your messages. ______________________________________________________________________________________________________ Our Mission: Each year, nonprofit Goodwill of San Francisco, San Mateo and Marin breaks the cycle of poverty for thousands of local people through our transformative free training and work placement programs. Goodwill serves anyone who comes through our doors with a willingness to work. Job Creation: From skills training to job coaching that leads to employment, we identify and develop job-readiness skills on both a personal and professional level, plus offer a variety of employment support services. Employment at Goodwill: Our 21 retail stores, 25 attended donation centers and 2 warehouses employ more than 600 people and provide training and employment opportunities for individuals seeking to learn and build work skills that lead to career pathways. Employment with Top Bay Area Companies: Our experienced employment coaches connect work-ready job seekers with open positions at a range of companies throughout San Francisco, San Mateo and Marin counties. Impacts: Last year, Goodwill of San Francisco, San Mateo and Marin placed our participants in 636 jobs and transitional employment opportunities. In addition, education, job training, and employment services were provided to 3,200 people in our three-county region, and 10,300 visits were made to our Comprehensive Access Point Job Center.

Massdrop x Alex Cavalli Liquid Carbon X amp, built by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The Liquid Carbon X is a solid-state, fully balanced, bridged amp with a clear, transparent, non-fatiguing sound. It has the same topology as the celebrated Liquid Carbon, along with updates to the form factor, switching power supply, and input and output jacks. The four amplifier sections—two per channel—create a clean, distortion-free signal and a quiet background. It retains the Liquid Carbon’s single-ended output for convenience with unbalanced cables, and also has a balanced output for when you need more power and ultimate performance. The Liquid Carbon X adds a protective offset detector, and for quieter operation and compatibility with worldwide voltages, moves the power supply out of the chassis. Plus, you can adjust the gain on the front panel for different headphones. The Standard DAC sets a new standard in entry-level DACs. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

This is a personal DAC/amp I purchased from Massdrop (DROP) who collaborated with Grace Designs back in 2016. Its a great desktop DAC/amp but I never really used my headphones for computer streaming all that much. I probably used this DAC maybe a couple of dozen times at best. Massdrop/DROP had a very limited run of these DACs and are no longer sold. The m900 is closest thing currently to the m9XX. Exterior is in overall very good condition. There is a tiny ding/marring on the top left side of the case. Unfortunately that was how it was like when I received it. It didnt bother me all that much since it was a small imperfection. I have included a Samsung 5V-2A Fast Travel Charger - THE ORIGINAL POWER ADAPTER AND MICRO USB CABLES ARE NOT INCLUDED. You will need a pair of Micro-USB Cables to operate the DAC: one for power and for connectivity to your source. Or you can use a Toslink for A/V connectivity. Well reviewed on Head-Fi, HiFi Insider, and beyond, the Massdrop x Grace Design m9XX was inspired by the world-class m920 DAC/amp—offering the same performance level for audiophile applications, now at a far more accessible price. Working with Michael and Eben from Grace Design, we stripped the m920 of its lesser-used pro audio hardware and improved upon the audiophile features where possible, all while retaining the high-res DAC implementation and super-clean solid-state amplification. The result? A portable, affordable, and sleek piece of gear; one that benefits from Grace Design’s decades of expertise in analog circuitry and better serves the needs of the audiophile community. You can get more detail through the Drop link: https://drop.com/buy/grace-design-x-massdrop-m9xx-dac-amp All sales final. No returns accepted. Shipping rates will vary depending on destination. Additional insurance is recommended.

In excellent condition and has no issues with operation. Has been owned for a little over 5 years now and flawlessly powered various Sennheiser and Fostex headphones with no trouble whatsoever. Includes original accessories: M9XX10 ft (3 m) USB Cable 6 ft (1.8 m) USB CableUSB Power AdapterOriginal box and manual are not included. Will be securely repackaged for shipment. Thanks for looking! Well reviewed on Head-Fi, HiFi Insider, and beyond, the Massdrop x Grace Design m9XX was inspired by the world-class m920 DAC/amp—offering the same performance level for audiophile applications, now at a far more accessible price. Working with Michael and Eben from Grace Design, we stripped the m920 of its lesser-used pro audio hardware and improved upon the audiophile features where possible, all while retaining the high-res DAC implementation and super-clean solid-state amplification. The result? A portable, affordable, and sleek piece of gear; one that benefits from Grace Design’s decades of expertise in analog circuitry and better serves the needs of the audiophile community.

Pre owned in good condition comes with what’s shown

MASSDROP X GRACE DESIGN STANDARD DAC Like new I have only used it maybe 1-3 times MASSDROP X GRACE DESIGN STANDARD DAC https://drop.com/buy/massdrop-x-grace-design-standard-dac

Massdrop unit made in collaboration with Grace Designs. Contains Objective2 headphone amp and Grace Designs Standard DAC (SDAC) in one box. You can just connect through included USB cable to your computer and play music on your headphones (DAC+amp mode), you can also use it as DAC or amp separately by connecting RCA cables. Headhphone amp has configurable gain via switch (1x or 3.3x). Amp needs external power supply, DAC works from provided USB power. Includes USB cable, 120V power supply, RCA to mini-jack cable, 6.5 mm jack to 3.5 mini-jack adapter.