INTRODUCTION
Thank you for purchasing the ROLLS MP13 MINI-MIC Microphone
Preamp. The MP13 uses a servo balanced instrumentation amplifier for
studio grade performance in a small package. This equates to a 40db
better common mode rejection ratio (CMRR) than transistor inputs used
by most companies on mic inputs. It also means much lower distortion.
The clearer sound with more “air” puts the MP13 in a class with much
higher priced units.
FEATURES
• XLR and 1/8" Mic Inputs
• XLR and 1/4" Outputs
• Gain Control
• Clip LED indicator
• 1/4" Output Drives Stereo Headphones
• +21 Volt Phantom Power - available for 1/8" microphones
DESCRIPTION
INPUT: 1/4" and female XLR jack for signal input.
OUTPUT: 1/4" and male XLR jack for signal output. May be connected to
stereo headphones for personal monitoring.
POWER: Sleeve positive barrel jack for connection to the AC power
adapter.
GAIN: Controls the amount of
signal increase to the MP13.
CLIP: LED for indicating circuit
clipping. Indicates distortion is
possible.
PHANTOM POWER: When
pressed in, a36 volts
of phantom powering to the
XLR input.
PWR: LED for indicating
power is applied to the MP13.
SPECIFICATIONS
Connectors:
Inputs;
XLR, 1/8" TRS balanced Mic In
Outputs:
XLR balanced, 1/4" unbal. Aux/Hdphn
Input Impedance:
10K
9
bal, unbal.
Max Input Level:
+4 dBV XLR bal, +10 dBV unbal.
Max Gain:
60 dB/XLR, 54 dB 1/4"
Phase Shift:
<10 deg. 20 Hz - 20 kHz
EIN:
-108 dB max.
THD:
<.01%
IMD (SMPTE)
<.01%
CMRR:
> 80dB
Phantom Power:
+21 Volts, 6 mA
Power:
12 VDC adapter
Weight:
1 lbs (.45Kg)
Size:
3.4" x 4.2" x1.4"
SCHEMATIC
BALANCED
UNBAL
BALANCED
UNBAL
INPUT
OUTPUT
PWR
GAIN
6 dB 50
clip
PHANTOM
POWER
pwr
Mini-Mic
Preamp
MP13
DC IN
12 VDC
+
-
