Output Connections; Selecting An Input Source - Grace m902 Owner's Manual

ouTpuT ConneCTIons

sTeReo HeaDPHone ouTPuTs - Headphone outputs are provided via two ¼" TRS (Tip, Ring,
Sleeve) jacks. These outputs are wired in parallel. Connection to headphones should be made using
standard ¼" TRS stereo connectors.
unBalanCeD lIne ouTPuTs - (m902) A stereo pair of unbalanced line level outputs are
provided via two RCA jacks. These outputs should be connected to powered speakers or power
amplifiers using standard unbalanced RCA cables.
BalanCeD lIne ouTPuTs - (m902B) A stereo pair of balanced line level outputs are provided via
two ¼" TRS jacks. These outputs should be connected to powered speakers or power amplifiers using
standard balanced cables. Connection to an unbalanced input is also possible. See figure 1 and 2 for
proper termination.
Balanced Output 1/4" TRS
TIP
RING
SLEEVE
figure 1 balanced output to balanced input
Balanced Output 1/4" TRS
TIP
RING IS OPEN
figure 2 balanced output to unbalanced input
Once you've connected the power and have made all of the audio connections to your m902. Now the
fun begins! The m902 has been designed to provide simple and intuitive operation. However, to get
the most out of your m902, it is recommended that you read through the following sections carefully
to learn the necessary details for operating your m902 reference headphone amplifier and monitor
controller.

seleCTInG an InpuT sourCe

The m902 provides multiple analog and digital input sources. The rotary input selector switch is used
to choose the input source for both the headphone amplifier and line output.
analoG InPuTs - The m902 provides both balanced and unbalanced stereo inputs. To select
either of these analog inputs, rotate the input selector to the desired input. When an analog input is
selected, the m902's internal reference DAC is shutdown.
HOT
RING
GND
SLEEVE SHIELD
Balanced Input XLR
pin 3 pin 2
pin 1
Unbalanced Input RCA
grace design m902 9
owner's manual