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Grace Design M906

Price ex. VAT

6 017 EUR

Price incl. 21% VAT

7 281 EUR

How much is 7 + 5?

5.1 and stereo high fidelity monitor controller

At the core, the m906 is a purist level control for monitoring surround (or stereo) audio sources. But a closer look reveals a highly intelligent feature set that makes it a vital nerve center for any recording, mastering, or post facility centered around a digital audio workstation. It is configured as a 2U rack mount mainframe controlled by a sleek, powerful desktop remote control, with all audio kept in the mainframe and all control via the remote control.

The m906 offers a full complement of balanced and unbalanced analog 5.1 and digital 5.1 and stereo inputs, the latter featuring our latest generation reference 24bit/192kHz DAC technology with our proprietary s-Lock™ PLL for rock solid digital stability. All inputs and outputs on the m906 can be user calibrated for seamless integration into any playback environment with all types of playback equipment.

The m906’s signal path is designed to deliver nothing short of the best performing, transparent audio available. All components are chosen for audiophile performance and long term reliability. Level controls, the heart of a monitor controller, are low distortion precision devices which provide a 100dB range in silent .5dB steps.

Included as a standard feature is our acclaimed reference headphone amplifier circuitry (from our m902), with one output jack on the mainframe and one additional output on the remote. This unique circuitry provides precision headphone amplification for critical monitoring, mixing and mastering.

While the m906 boasts a remarkably full set of features, the real achievement for us is to offer this while maintaining the impeccable, transparent audio performance for which all of our products are famous.
 

  • multiple 5.1 and stereo analog inputs
  • 24bit/192kHz digital 5.1 and stereo inputs- AES3, S/PDIF, ADAT and TOSLINK
  • s-Lock™ phase lock loop sample clock regeneration for ultra-low jitter and rock solid digital stability
  • precision speaker and headphone level controls with a 100dB range in 0.5dB steps
  • every electrical and mechanical design element maximized for absolute purist audiophile performance
  • all controls are built into an elegant, convenient desktop remote control unit
  • all I/O and audio are routed in a 2U rack mount mainframe powered by an external 1U 1/2 rack power supply
  • control up to three speaker systems - two 5.1 or up to three stereo
  • m902 style high-current audiophile headphone amplifier built in with one output on remote control unit and one on the mainframe unit
  • complete system level calibration (inputs, outputs, inter-channel balance, dim) and individual channel solo/mute
  • balanced talkback microphone input and activation switch with additional external foot switch control jack
  • fixed level 5.1 DAC output for direct audio transfers
  • optional downmix module supports all standard Dolby mix ratios
  • optional AES Loop-thru feature provides four AES digital outputs for passing signals to other devices downstream
  • five year transferable warranty on parts and labor

 



ANALOG INPUT THD+N @ 0dB gain, 1kHz
+20dBu out
<0.001% (0.00075% typical)
+10dBu out
<0.003% (0.001% typical)
0dBu out
<0.009% (0.005% typical)
Intermodulation Distortion SMTPE/DIN 4:1 50Hz, 7kHz
@+20dBu out
<0.002% (0.0015% typical)
@ 0dBu out
<0.008% (0.006% typical)
Frequency Response
+/-3dB
3Hz - 250Khz
Dynamic Range
20-22kHz bandwidth
112dB
20-22kHz bandwidth and A weighting filter
115dB
Output Noise 20-22kHz bandwidth, -20dB gain
High gain mode
-89dBu
Low gain mode
-98dBu
20-22kHz bandwidth and A weighting filter, -20dB gain 
High gain mode
-91dBu
Low gain mode
-99dBu
Phase Deviation
20Hz to 20kHz
< 4
10Hz to 100kHz
< 15
Crosstalk any channel
100Hz
< 100dB
1kHz
< 100dB
20kHz
< 85dB
Balanced Input CMRR
60Hz
> 65dB
1kHz
>65dB
10kHz
>60dB
Gain Range
Low gain mode (0.5dB steps)
-105.5dB to +20dB
High gain mode (0.5dB steps)
-95.5dB to +30dB
Channel Tracking Accuracy
Any channel
+/-0.05dB
Maximum Output Level
Low gain mode (balanced)
+15dBu
High gain mode (balanced)
+27dBu
Maximum Input Level
Balanced inputs
+30dBu
Unbalanced inputs
+20dBu
Impedances
Balanced inputs
30k Ohms
Unbalanced inputs
50k Ohms
Balanced outputs
300 Ohms
Minimum load impedance
300 Ohms
DIGITAL TO ANALOG CONVERTER FIXED OUTPUTS
Output Levels 
User selectable (0dBFS)
+16dBu / +24dBu
Fixed output trim range (0.5dB steps)
-95.5dB to +30dB
THD+N
1kHz, -1dBFS, 20-22kHz bandwidth (44.1kHz)
0.00%
Dynamic Range
20-22kHz bandwidth
>111dB
Input Lock Range
AES3/SPDIF
32kHz to 192kHz
TOSLINK
32kHz to 96kHz
ADAT LIGHTPIPE
30kHz 55kHz
S-Lock Sample Clock Intrinsic Jitter
20-22kHz bandwidth
<25ps
S-Lock Sample Clock Jitter Rejection 
1kHz sine jitter
-40dB
  
S-Lock Supported Sample Rates
AES3, SPDIF
44.1, 48, 88.2, 96, 176.4, 192kHz
TOSLINK
44.1, 48, 88.2, 96kHz
ADAT LIGHTPIPE
44.1, 48kHz
s-Lock™ Capture Range
44.1, 48kHz
+/- 10Hz
88.2, 96kHz
+/- 20Hz
176.4, 192kHz
+/- 40Hz
Word Clock / Superclock Input
Impedance (switchable)
75 Ohms / 1M Ohms
Minimum Voltage
3V peak to peak
Maximum Voltage
5V peak to peak
Word clock frequencies supported
44.1, 48, 88.2, 96, 176.4, 192kHz
Superclock frequencies supported
11.2896MHz, 12.288MHz (256x fs)
POWER SUPPLY / MECHANICAL SPECS
Power consumption
60W
Input Voltage 50-60Hz
100, 120, 220, 230-240VAC
Dimensions
Main chassis IEC 2U
3.5" x 10.5" x 17"
Remot control unit
1.6" x 8" x 5.25"
Power supply unit
1.7" x 8.5" x 8.5"
Weight
Main chassis
14.1lbs / 6.4kg
Remote control unit
2.3lbs / 1kg
Power supply unit
6.5lbs / 2.9kg
All specifications are subject to change without notice




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