SPECS DAC Section Massdrop xGrace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included(purchase separately: plug adapter for your countrys outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front in (6.35 mm)output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

SPECS DAC Section Massdrop x Grace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz–20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included (purchase separately: plug adapter for your country’s outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz–20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front ¼ in (6.35 mm) output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

Description: This product is unopened in the original box.This Grace Design m900 is a high-quality desktop DAC and headphone amplifier. It features a Burr-Brown DAC chip, a headphone amp with high output power and low output impedance, and a variety of input and output options. The m900 is perfect for audiophiles who want to get the most out of their music.This unit is in excellent condition and has been well-maintained. It comes with the original box, power cord, and remote control.Features:Burr-Brown DAC chipHeadphone amp with high output power and low output impedanceVariety of input and output optionsPerfect for audiophilesShipping:This unit will be shipped via USPS Priority Mail with tracking.Payment:Payment is accepted via PayPal.Please contact me if you have any questions.

SPECS DAC Section Massdrop x Grace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz–20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included (purchase separately: plug adapter for your country’s outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz–20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front ¼ in (6.35 mm) output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

SPECS DAC Section Massdrop xGrace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included(purchase separately: plug adapter for your countrys outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front in (6.35 mm)output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

Description: This product is unopened in the original box.This Grace Design m900 is a high-quality desktop DAC and headphone amplifier. It features a Burr-Brown DAC chip, a headphone amp with high output power and low output impedance, and a variety of input and output options. The m900 is perfect for audiophiles who want to get the most out of their music.This unit is in excellent condition and has been well-maintained. It comes with the original box, power cord, and remote control.Features:Burr-Brown DAC chipHeadphone amp with high output power and low output impedanceVariety of input and output optionsPerfect for audiophilesShipping:This unit will be shipped via USPS Priority Mail with tracking.Payment:Payment is accepted via PayPal.Please contact me if you have any questions.

SPECS DAC Section Massdrop xGrace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included(purchase separately: plug adapter for your countrys outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front in (6.35 mm)output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

SPECS DAC Section Massdrop x Grace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz–20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included (purchase separately: plug adapter for your country’s outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz–20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front ¼ in (6.35 mm) output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

Grace X Design Massdrop SDAC DAC Digital Audio Converter USB RCA. Excellent Condition. Barely used. Includes USB cord. Comes with original boxes.

SPECS DAC Section Massdrop x Grace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz–20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included (purchase separately: plug adapter for your country’s outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz–20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front ¼ in (6.35 mm) output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

SPECS DAC Section Massdrop xGrace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included(purchase separately: plug adapter for your countrys outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front in (6.35 mm)output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

Description: This product is unopened in the original box.This Grace Design m900 is a high-quality desktop DAC and headphone amplifier. It features a Burr-Brown DAC chip, a headphone amp with high output power and low output impedance, and a variety of input and output options. The m900 is perfect for audiophiles who want to get the most out of their music.This unit is in excellent condition and has been well-maintained. It comes with the original box, power cord, and remote control.Features:Burr-Brown DAC chipHeadphone amp with high output power and low output impedanceVariety of input and output optionsPerfect for audiophilesShipping:This unit will be shipped via USPS Priority Mail with tracking.Payment:Payment is accepted via PayPal.Please contact me if you have any questions.

A Portable Headphone Amp with Impeccable Sound Sweetwater is an Authorized Grace Design Dealer Genuine Open Box Item Sweetwaters 2-year warranty Grace Design m900 - Desktop DAC Headphone Amplifier 2-ch Headphone Amplifier with Stereo Unbalanced Analog Outputs, Digital Input via USB, TOSlink, and S/PDIF Coax, and Support for 44.1kHz-384kHz PCM and 64X-256X DSD Audio - Mac/PC A Portable Headphone Amp with Impeccable Sound Grace Designs m900 takes the stunning detail and flawless imaging of their flagship m920 headphone amplifier and packs it into a portable, bus-powered unit. But just because the m900 is portable, doesnt mean its lacking. Experience jitter-free computer audio playback, with support for up to 32-bit/384kHz PCM and 256x DSD. Dual zero-ohm output impedance headphone outputs deliver spacious and transparent performance, while stereo unbalanced analog outputs make connecting to your stereo monitor system easy. Either way, four different DAC filter settings provide personalized playback. At Sweetwater, we appreciate the m900s simple setup menu and easy-to-read 7-segment LED display, and its large rotary encoder makes volume control and menu navigation a breeze.Grace Design M900 Features: 2-ch headphone amplifier and top-shelf D/A converter Portable bus-powered unit is ideal for travel, desktop, or studio Jitter-free computer audio playback with support for up to 32-bit/384kHz PCM and 256x DSD Dual zero-ohm output impedance headphone outputs deliver spacious and transparent performance Stereo unbalanced analog outputs make connecting to your stereo monitor system easy Compatible with a wide variety of digital sources via USB, TOSlink, and S/PDIF coax 4 different DAC filter settings provide personalized playback Simple setup menu and easy-to-read 7-segment LED display Large rotary encoder for easy volume control and menu navigation SpecificationDetail Type Headphone Amp & DA Converter Input Channels Stereo Output Channels 2 Analog Outputs 2 x RCA (stereo) Headphones 2 x 1/4 TRS Digital Inputs 1 x Coax (S/PDIF), 1 x Optical Toslink USB 1 x Micro-B (high power), 1 x Micro-B (data, bus power) Form Factor Portable Power Supply USB bus powered Height 1.8 Width 4 Depth 5.25 RETURN INFORMATION We want you to be completely happy with your purchase from Sweetwater. If you are not satisfied with your product, you may return it for a refund of the purchase price within 30 days. If your purchase was eligible for Free Shipping, the shipping cost will be deducted from your credit or refund. Returns must be in the complete and original packaging with all accessories and complete documentation (Owners Manual, warranty card, quick start guides, etc.), show no signs of wear or use, and include a Return Authorization number or be subject to a restocking fee. Fast, FREE Shipping! Nearly every order received by 3PM Eastern ships the SAME DAY! FREE shipping to lower 48 states. Our central location reaches most states in 1-4 business days 99.95% warehouse accuracy We are proud to provide some of the fastest turnaround times on eBay. We use FedEx or UPS for most items, and USPS for smaller items. Residents of Hawaii, Alaska, and Puerto Rico should contact us for a shipping quote. PLEASE NOTE: We cannot ship large items to PO boxes, please provide an alternate address. If you have questions, feel free to contact us. Buy with confidence! Sweetwaters been selling on eBay since 2001, with 99.9% positive feedback! More than 30 years in business World-class customer service Fast, FREE shipping Free 2-year warranty on nearly every product Free tech support from audio experts

Grace Designm920 High ResolutionMonitoring System D/A Wandler, DACPreAmp, KopfhörerverstärkerStudio Referenz, High-End UNIKAT, anderes DesignSonderlackierung Wegen Systemwechsel verkaufe ich diesen seit Jahren so treuen Begleiter.Dieser DAC begeistert durch eine souveräne, neutrale und lupenreine Wiedergabe.Es ist ein klarer Studio DAC der unheimlich neutral wiedergibt. Wer auf der Suche nachSchönfärberei und Hifi Sound ist, der sollte sich woanders umschauen. Dieser DAC spielt gnadenlos ehrlich aber auch extrem musikalisch. Ich würde diesen DAC jedem RME DAC vorziehen, keine Frage. Es ist einfach der große amerikanische Sound ***** Ich habe das Design und das Äußere des Wandlers komplett von silber auf schwarz geändert. Das Gehäuse wurde komplett in schwarz matt lackiert. Zudem wurden folgende Änderungen vorgenommen: Oben auf dem Deckel wurde ein Ausschnitt vorgenommen und mit einem Edelstahl Feingitterversehen. Dadurch wird der DAC deutlich besser gekühlt und wird bei weitem nicht so warm/heisswie es ohne den Ausschnitt des Deckels war. Der An/Ausschaltknopf wurde mit einer Unterlegscheibeversehen, wodurch die Beleuchtung nicht ganz so hell/grell ist. Die digitale Anzeige wurde mit einemroten transparenten/getönten Plexiglas Ausschnitt überdeckt und sieht jetzt deutlich nach 80is aus (: Alles funktioniert perfekt und fehlerfrei. Grace Design bauen für die Ewigkeit und so werden Sie diesen DAC sicherlich noch viele Jahre geniessen können Er hat übrigens auch sehr ausgefuchste Kopfhörerverstärker Features und kann auch als Preamp verwendet werden. NP ca. 2.299,00€ Aussagekräftiger Test siehe hier:hifitest.de/test/da-wandler/grace-design-m920-9802 PRIVATVERKAUFKEINE RÜCKNAHMEVERSAND VIA DHL

Cavalli Tube Hybrid headphone amplifier and Grace SDACConnects to pc via USB and uses 2 RCA cables (included) to connect the Amplifier and DACHas a 4 pin XLR output (not balanced) and a quarter inch (3.5mm adapter included) headphone jackPower adapter includedHigh power output for high impedence headphones Has a warm tube amplifier sound but can also be used well with planar headphones due to it being a solid state hybridThe tube can be swapped out to change the soundNo issues with the items, selling them because I dont have a need for them anymore

SPECS DAC Section Massdrop x Grace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz–20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included (purchase separately: plug adapter for your country’s outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz–20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front ¼ in (6.35 mm) output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

SPECS DAC Section Massdrop xGrace Design DAC chip: AKM AK4452 Audio formats: Up to 24 bit/96 kHz Frequency response, 20Hz20 kHz: +/-0.02 dB THD+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 dBu Dynamic range, A-weighted: >114 dB Linearity, -90 dBFS: -0.07 dB Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB Maximum output: 2.15VRMS USB controller: XMOS XU208-128-TQ64 Inputs: USB micro Output: RCA Power: USB Class 1 (no drivers required for Windows, Mac, or Linux) Amp Section Input: RCA, SDAC (when powered) Output: 6.35 mm Power: AC adapter included(purchase separately: plug adapter for your countrys outlet) Gain: 1.0x and 3.3x Frequency response: +/-0.1 dB (20 Hz20 kHz) THD (1 kHz, 150 ohms): 0.0016% IMD CCIF (15 ohms): 0.001% IMD SMPTE: 0.002% Noise (ref 400 mV): -105 dB Max output (33 ohms): 613 mW Max output (150 ohms): 355 mW Max output (600 ohms): 88 mW Output impedance: 0.54 ohms Crosstalk (15 ohms): -65 dB Channel balance (50% volume): 0.6 dB Physical Front in (6.35 mm)output Rear RCA input/output Rear microUSB Rear power Chassis material: Anodized aluminum Case dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm) Weight: 9.28 oz (263 g)

Grace m9xx DAC/AMP. 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. https://drop.com/buy/grace-design-x-massdrop-m9xx-dac-amp

Up for sale is a Grace Design M920 High-Fidelity Monitoring System. Purchased from Amazon in 2016, this unit has been meticulously maintained and remains in excellent condition. It was primarily used to pair with my HD800 headphones, delivering an immersive and high-definition audio experience. The M920 shows minor signs of use consistent with its age but nothing that impacts its performance or functionality. It has been tested extensively and operates as expected. All buttons, knobs, and inputs/outputs are in perfect working order, and there are no known operational issues with this unit. The front panel LCD and LED indicators are bright and clear, with no signs of fading or dead pixels. The connectors at the back of the unit are clean, and free from any corrosion. One of the highlights of this sale is the inclusion of upgraded AudioQuest cables, enhancing the audio quality further. The unit also comes with its original USB cable. Please note that the original box and manual are not included in this sale. Please take a look at the attached photos for a better understanding of the units condition. What you see in the images is what you will receive. While I have made my best effort to describe the condition accurately, remember that this is a used item and there may be minor imperfections that Ive overlooked. For more detailed technical specifications, you can visit the following link: https://headphone.guru/grace-m920-high-resolution-monitoring-system-2/ Please feel free to reach out if you have any questions about the unit or need additional photos. Thank you for your interest in this listing!