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standalone digital to analog converter
• Front panel rotary encoder provides precision
level control of both headphone and the 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
• Large, white 7-segment display is used to show
headphone and stereo main output levels
• New X-feed (crossfeed) simulates the acoustics
of a loudspeaker listening environment which
can significantly improve imaging while reduc-
ing 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 m920 was specifi-
cally designed with low impedance headphones
in mind
• Only the highest quality 0.5% metal film resistors
are used throughout and there are no electro-
lytic 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
• Apple IR remote control is supported with op-
tional pairing
• USB firmware upgradability
• 5 Year transferable warranty on parts and labor
m920 Front Panel Controls / Features
FS
44
48
INPUT
DSD
AES
BAL
UNBAL
S/PDIF
TOS
USB
GRACE DESIGN
VOLUME
s
Lock
2x
4x
8x
xfeed
920
HP L
1
L2
PHONES
high resolution
monitoring system
1
3
4
5
6
8
9
2
7
10
1
ILLUMINATED POWER SWITCH
illuminates white
when unit is powered on.
2
ROTARY INPUT SELECTOR SWITCH
selects be-
tween all available inputs.
3
S-LOCK™ INDICATOR LED
illuminates when s-
Lock™ is active.
4
SAMPLE RATE INDICATOR LEDS
auto sample rate
detection from selected digital input source.
LEDS indicate the base sample rate with the ap-
propriate multiplier for 2x, 4x and 8x rates.
5
DSD INDICATOR LED
auto DSD detection from
the selected digital input source
6
VOLUME / EDIT ROTARY ENCODER
This stepped
rotary encoder controls the selected output
level in .5dB increments. This encoder is also
used to adjust other settings found in the setup
menu.
7
OUTPUT SELECTION LEDS
These LEDS indicate
which output is currently selected for volume
control.
8
CROSSFEED INDICATOR LED
Crossfeed circuitry is
user activated in the setup menu or via optional
wireless remote control.
9
OUTPUT LEVEL / SETUP MENU DISPLAY
This white
2 digit display shows the current relative output
level values based on the position of the main
level rotary encoder. The range of this display is
0 to 99. Note the decimal represents a +0.5dB
increment. This display is also used to give the
user information in the setup menu.
10
HEADPHONE OUTPUTS
Two stereo headphone
output jacks wired in parallel.
