grace design
m
902
owner’s manual
4
m902 key feaTures
Stereo analog inputs - balanced (+4dbu) XLR and unbalanced (-10dbv) RCA.
•
Ultra low distortion 24-bit /192khz DAC accepts stereo digital input sources in AES3, S/PDIF and
•
TOSLINK (optical) formats with auto sample rate detection and digital de-emphasis filter.
USB input provides a convenient way for users to enjoy a reference quality monitoring experience
•
when connected to their computer. This interface supports 16-bit audio at 44.1 Or 48kHz sample
rates.
s-locktm dual stage PLL (phase lock loop) circuitry for the ultimate in low jitter digital signal stability
•
and sonic integrity.
Unbalanced line level outputs (m902) are provided via rca jacks on the rear panel for connection to
•
stereo monitors.
Balanced line level outputs (m902b) are provided via ¼” tip-ring-sleeve (TRS) jacks on the rear panel
•
for connection to stereo monitors.
Front panel rotary encoder provides precision level control of both headphone and line output
•
levels. Level adjustments are made in 0.5db steps within a 95db range.
0.05db channel level matching to ensure true stereo balance at any monitoring level.
•
A large, blue 7-segment display is used to show headphone and stereo main output levels.
•
Calibration mode enables left/right balance adjustment for both headphone and mains outputs.
•
There’s also a display dim mode that turns off all led’s except for the main power switch led.
X-feed (crossfeed) simulates the acoustics of a loudspeaker listening environment which can
•
significantly improve imaging while reducing listening fatigue when using headphones. This
feature employs carefully designed signal cross-feed, filtering and delay circuits to simulate hrtf
(head related transfer functions).
High current transimpedance output amplifier design drives 8 ohm loads. The m902 was specifically
•
designed with low impedance headphones in mind.
Only the highest quality 0.5% metal film resistors are used throughout and there are no electrolytic
•
capacitors in the signal path. Sealed gold contact relays are used for all signal switching.
Infrared remote control for level control, left/right balance, mute and more when using the optional
•
remote control unit.
5 Year limited warranty on parts and labor.
•
