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Massdrop x Grace Design m9XX DAC/Amp

Massdrop x Grace Design m9XX DAC/Amp

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Product Description
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 Read More

Specs

Headphone Output Power - Low Power Mode (2 channels driven)

  • 22 mW @ 4 Ω
  • 45 mW @ 8 Ω
  • 90 mW @ 16 Ω
  • 100 mW @ 20 Ω
  • 175 mW @ 32 Ω
  • 280 mW @ 50 Ω
  • 83 mW @ 300 Ω
  • 40 mW @ 600 Ω

Headphone Output Power - High Power Mode (2 channels driven)

  • 240 mW @ 4 Ω
  • 490 mW @ 8 Ω
  • 940 mW @ 16 Ω
  • 1030 mW @ 20 Ω
  • 950 mW @ 32 Ω
  • 650 mW @ 50 Ω
  • 115 mW @ 300 Ω
  • 57 mW @ 600 Ω

Impedances             

  • Headphone output: 0.08 Ω 
  • Line output: 47.5 Ω

THD+N at Maximum Volume

  • 1kHz, 22H–22kHz BW          
  • 0dBFS in, +14dBV out: k<0.002%

Intermodulation Distortion

  • SMTPE/DIN 4:1 50Hz, 7kHz                    
  • @1.0V out, no load: <0.008%      
  • @1.0V out, 32-ohm load: <0.009%

Frequency Response

  • +/-3dB          
  • Fs=96kHz: 0.5-45.9kHz

Dynamic Range               

  • 20Hz–22kHz bandwidth: 112dB
  • 20Hz–22kHz bandwidth and A weighting filter: 115dB

Output Noise          

  • 20Hz–22kHz, volume = 0-90: -106dBV      
  • A-weighting filter, volume = 0-90: -109dBV      
  • 20Hz–22kHz, volume = 90.5-99.5: -96dBV        
  • A-weighting filter, volume = 90.5-99.5: -98dBV

Crosstalk           

  • 100Hz: <107dB        
  • 1kHz: <98dB
  • 20kHz: <72dB

Attenuation Range

  • 0 to -99dB, 0.5dB steps

Channel Tracking Accuracy

  • +/-0.05dB

Maximum Output Level

  • +14dBV (5.1V)

THD+N         

  • 1kHz, -1dBFS, (0dBFS = +20dBu), 20Hz–22kHz bandwidth: 0.0006%                   

Dynamic Range                 

  • 20Hz–22kHz bandwidth, 0dBFS = +20dBu (AES17 filter): 117dB
  • 20Hz–22kHz bandwidth, 0dBFS = +20dBu (A-weighted): 119dB

Input Lock Range                

  • TOSLINK:     
  • 44.1kHz +/- 400Hz
  • 48kHz +/- 700Hz
  • 88.2kHz +/- 1200Hz
  • 96kHz +/- 1300Hz   
  • USB:
  • 44.1, 48, 88.2, 96, 176.4, 192, 352, 384 kHz
  • DSD64, DSD128

Power Consumption

  • Max, high-power mode: 8.0W
  • Max, low-power mode: 2.5W     

Dimensions

  • 4 x 5.25 x 1.8 in (10.2 x 13.3 x 2.6 cm)   

Owner Manual Download

Included

  • Printed owner manual
  • 6 ft (1.8 m) USB Cable (gold-plated connectors, ferrite bead)
  • 10 ft (3 m) USB Cable (gold-plated connectors, ferrite bead)
  • USB power adapter (110V or 220V, choose at checkout)

Shipping

Estimated ship date is Aug 24, 2018 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout for in-stock items, or up until pre-order ships.

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