Grace Design M906

**The m906 has been discontinued and has been replaced by the M908.


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.
This m906 can be equipped with an optional DOWNMIX module that creates a stereo L+R mix of a 6
channel surround source. All standard Dolby mix ratios can be calibrated by the user for both the center
and surround channels.
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
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


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