User Manual

DC jack for
connection to
the included
Rolls PS27s
power supply
RCA Line Out:
The RCA out can
be used with any
input on CH2. The
most common use
is to convert a 1/8”
Stereo (3.5mm)
headphone signal
to RCA line level.
+4 dB OUT LEFT and
RIGHT XLR jacks:
Male XLR jacks to be
connected to the input
of a professional line-
level device such as a
mixer, recording device
or amplier.
+4 dB IN LEFT and
RIGHT XLR jacks: Fe-
male XLR jacks to be
connected to the out-
put of a professional
line-level device such
as a sound reinforce-
ment mixing board or
recording device.
+ 4 dB IN
+ 4 dB OUT
LEFT
RIGHT
LEFT
RIGHT
-10 dB
OUT
-10 dB
IN
LEVEL
1
LEVEL
2
PWR
15 VDC
PROMATCH
Two-Way Stereo Converter
1
2
MB15b
RCA
LINE
OUT
3.5mm
INPUT
-10 OUT Stereo
RCA jacks: For
connection to
the input of a
consumer level
device,mixer or
preamplier.
-10 IN Stereo RCA jacks: For
connection to the output of any
consumer level device such as
a phone, tablet or CD player.
LEVEL 1:
Adjusts the
signal level of
channel one.
LEVEL 2: Adjusts
the signal level of
channel two.
1/8” Stereo input: For
connection to the output
of a phone, tablet or
computers output. It also
will work with a mixers
headphone output.
The MB15b is essentially two units in one chassis. Channel 1 takes XLR inputs and converts them to
RCA outputs. Channel 2 takes an RCA or 3.5mm stereo input, and converts it to XLR output. With the
addition of an RCA output on channel 2.