INTRODUCTtOM
Thank you for your purchase of the MB15 ProMateh Stareo Dual Converter. Specifically, the MB15 converts consumer level stereo RCA signals to balanced XLR professional line level - and back.
WARRANTY
For compete information on the Rolls 1 Year Warranty, and to
register this product, see our websfte at www.rolfe.ctwn.
DESCRIPTION
REAR PANEL
+4 dB IN LEFT and RIGHT XLR jacks: Female XLR jacks to be connected to the output of a protesstonat Bne-levet device such as a sound reinforcement mixing board or recording device.
+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 or recording device.
FRONT PANEL
-10 OUT Stereo RCA jacks: For connection to the input of a consumer level device such as a cassette or CD ptayer.
-10 I N Stereo RCA jacks: For connection to the output of a consumer tevel
device such as a cassette or CD player.
LEVEL 1; Adjusts the signal level of channel one, or the +4 dB tM to -TO dB
OUT channel.
LEVEL 2: Adjusts the signal level of channel two, or the -10 dB IN to +4 dB
OUT channel.
PWR LED: Indicates that power is applied to the MB15.
12 VDC jack: For connection to the Rote PS27 12 Voft DC power sttpp*?-
The outside of the jack (barrel) is positive, the inside is negative.

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CONSUMER LEVEL VS PROFESSIONAL LEVEL
The purpose of the MB! 5 is to connect consumer tevet equipment
to professional level equipment. An explanation of these are
addressed here.
Consumer level signals typically come from devices such as
camcorders, cassette decks, CD players, and home video players^
Professional level signals are associated with devices found in
recording studios and sound reinforcement systems like mixing
boards, signal processors, and their associated amplifiers.

MB15 promatch
The MB15 converts stereo consumer tevet signals to professional tine level signals - and vice versa. It may also serve as a balanced intine level control by patching the (our RCA jacks together.
- Stereo Direct Box
- Stereo RCA to stereo XLR
- Stereo Level control for each channel
- Works as stereo balanced line level control

SCHEMATIC

SPECIFICATIONS
Max Out:
Maxhr
Input Impedance:
Output Impedance:
Noise Floor Gain:
thdl
Power:
Weight:
Size:
Bal: +18 dB
Unbal: +12 dB
Baf: +22 dB
Unba): +22 dB
RCA: 100k Ohm
XLR: 10k Ohm
RCA: 100 Ohm
XLR: 100 Ohm balanced
-88 dB +4dBln:-8dB
-10dBln:+20dB
.003%
12 VDC 150 mA adapter (center negative)
1 Ibs. (.45 Kg)
4.15" x2.4®*x 1.55°
MB15 ProMateh
ce

ROILS
Rolte Corporation Salt Lake City, UT 2/00