page 5
m903 Rearpanel
1
BALANCED ANALOG INPUT - standard female XLR connectors.
2
UNBALANCED ANALOG INPUT - standard RCA connectors.
3
UNBALANCED LINE OUTPUT - standard RCA connectors.
4
BALANCED LINE OUTPUT - standard 1/4” TRS connectors.
5
AES DIGITAL INPUT - quality 110 Ohm balanced cable recommended.
6
USB DIGITAL INPUT - standard USB type A -to- type B mini cable included.
7
TOSLINK DIGITAL INPUT - standard TOSLINK optical cable.
8
S/PDIF DIGITAL INPUT - quality 75 Ohm cable recommended.
9
VOLTAGE SELECT CAM - selects between 110 VAC and 220 VAC.
10
AC LINE INPUT MODULE - standard 3 prong AC cable included.
Unpacking and Installing your m903
The m903 is shipped in one box which contains the m903 unit, an AC power cord, a USB cable, a small plastic bag containing four
hand-threaded machined metal feet and a warranty registration card..
oPen anD inSPeCt tHe box
Open all shipping boxes, carefully remove the m903 and put it aside. Before you go any further, check to make sure the above
listed components are included with your shipment. If you believe something is missing, contact your grace design dealer and
they will make sure you’re taken care of.
SaVe yoUr box!!
We strongly encourage you to save the box and shipping materials supplied with your m903. They are specially designed to
properly protect these valuable components, and in the unlikely event that you need to return them for service, only these OEM
shipping materials can ensure their safe return to our factory.
reGiSter yoUr Unit!
We strongly urge you to register your unit with Grace Design. We provide a limited 5 year transferable warranty on all of our
products, but if you register your system, it’s easier for us to help you if necessary. So please take a few minutes to complete the
enclosed warranty registration card and mail it in, or you can simply go to the warranty registration form on our web site. Thank
you!
inStallinG tHe feet anD/ or raCkMoUntinG
The m903 is designed to either be placed on a flat, stable surface in your studio or listening environment, or be rack mounted. If
you don’t plan to rack mount your m903, first install the 4 supplied metal/rubber feet. Simply thread theses supplied feet by hand
1
3
2
PUSH
1
3
2
PUSH
1
3
2
PUSH
BAL IN
UNBAL IN
LINE OUT
1
LINE OUT 2
L
R
R
L
USB IN
S/PDIF IN
TOSLINK IN
AES3 IN
110
1
3
4
5
6
8
9
2
7
10
