Audio Inputs
Use the rear panel receptacles (see figure 4) to connect audio sources to the amplifier. Wire
the connectors as shown below.
L
R
L
R
INPUTS
2 43
Figure 4. Audio Inputs
b
RCA unbalanced stereo input connectors — These
receptacles accept unbalanced, line level audio signals. The input
can be stereo, using two RCA connectors, or mono, using a
single RCAconnector plugged into the left receptacle.
If unused, the receptacles automatically terminate to lower the
noise floor.
c
3.5 mm unbalanced stereo input jack — This input also
accepts unbalanced, line level audio signals through a 3.5 mm
tip‑ring‑sleeve (TRS) stereo connector. If unused, the receptacle
automatically terminates to lower the noise floor.
d
Captive screw balanced
or unbalanced audio input
connector — This 5‑pole 3.5 mm
captive screw receptacle accepts line
level, balanced or unbalanced, mono
or stereo audio signals.
See the attention (on page 5) and
note (on page5) for important
information about connecting wires to
captive screw connectors.
Depending on the position of the
front panel toggle switch (see figure8 on page 10), the right and left channels may be
output as a stereo signal or as a dual mono signal. See Audio Output on page 9 for
more information.
Sleeve ( )
Sleeve ( )
Ring (R)
Tip (L)
3.5 mm TRS Connector
Balanced Stereo Input
Tip
Ring
Tip
Ring
Sleeves
Unbalanced Stereo Input
Tip
ve
ve
Tip
LR
Tip
Ring
Sleeve
Tip
ve
LR
MPA 152 Plus • Panels and Cabling 6
