7-Segment LED
Displays level setting from 0 - 99. This display is also used for navigating the m9XX setup menu. The
volume control step size is 0.5dB. The right hand decimal point comes on to indicate the 0.5dB
value. For instance, “65.“ indicates a volume setting of 65.5dB.
Volume Control (top panel)
Top mounted rotary encoder provides precise, stepped level control. Its push-button feature is
used to mute all signals (single push and release) or access the setup menu (push and hold).
Operation
Unpacking Your m9XX
The m9XX arrives in simple but protective Korrvu™ packaging. We recommend that you save this
box in the event you wish to store or ship your unit in the future. The box will contain the m9XX,
printed owner's manual, a 2A USB wall power supply and 2 USB type B mini cables – one 6' and one
10'. If you are missing any of these items, please contact Grace Design at 1.303.823.8100.
Setting Up Your m9XX
The m9XX is designed to sit on your desktop or atop your audio center. Its small, low profile stature
easily fits on any desk or media center furniture. Put your unit wherever you like, as long as it's
within reach. The top mounted volume control will sit comfortably under your hand whenever you
need to control your system volume, quickly mute or change settings.
Headphone jacks are on the front and inputs and line outs are on the back, so your cabling will
remain clean and simple.
Powering Up Your m9XX
There is no power switch. Power is automatically applied when either of the USB jacks are
connected. If you wish to power off the m9XX, simply disconnect the USB connection.
The m9XX can be powered from the your computer’s USB Bus in Low Power mode via the #1 USB
connector. In this mode the internal supplies operate at lower voltage to conserve power. This is
useful if you are traveling and do not have access to AC wall outlet.
If you connect the included 2A USB power supply to the #2 USB connector, the m9XX switches into
High Power mode. The #1 USB 2 port will maintain an active connection to your computer, but no
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