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RDL FP-MP1 Microphone Preamplifier Studio Quality Low Noise Performance PARTS

by RDL
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RDL FP-MP1 Microphone Preamplifier Studio Quality Low Noise Performance PARTS ONLY
Unit is marked as "Mechanical Sample" and may not actually be functional. Buy AS-IS. Physical condition is Grade A.


The FP-MP1 is the ideal choice in most applications requiring a preamp. RDL's exclusive low-noise discrete circuitry produces studio quality low noise performance in an economical preamplifier. The XLR and plug-in terminal block connections make the FP-MP1 perfect for both rack-mounted hardwired installations and remote use with standard audio cables. A front-panel switch permits the installer to direct phantom voltage to the input connectors. This 3-position switch provides 24V, 12V or phantom OFF. A second switch selects the input gain range thereby permitting the connection of standard or high output level microphones.


Input Impedance:
3 kΩ (balanced)

GAIN (4 ranges):
MIN: 19 dB to 38 dB (switch-selectable)
LOW: 26 dB to 45 dB (switch-selectable)
MED: 36 dB to 55 dB (switch-selectable)
HIGH: 46 dB to 65 dB (switch-selectable)

Input Clipping Level:
+4 dBu (at MIN gain)

20 dB (above +4 dBu

Low-Cut Filter:
80 Hz, 6 dB/Octave (switch-selectable)

Phantom Voltages:
12 V, 24 V (switch-selectable)

Buildout Standard:
IEC 61938: 2013

> 60 dB

Frequency Response:
20 Hz to 20 kHz (± 0.2 dB)

THD + N:
< 0.1% (+4 dBu, all gain settings)

< 0.1%

Noise (below +4 dBu):
< -70 dB (60 dB gain, 20 Hz to 20 kHz)
< -72 dB (60 dB gain, “A-Weighted”)
< -80 dB (50 dB gain, 20 Hz to 20 kHz)

Equivalent Input Noise:
< -130 dB (gain + residual noise below +4 dBu)

Connector type:
XLR female (input); XLR male (output); 5 position plug-in terminal block (input and output)

Audio Level Indicators (2):
Red LED: Output level > +4 dBu
Green: -10 to +4 dBu (variable intensity)

Ambient Operating Environment:
0° C to 50° C

Power Requirement:

Height: 1.42 in 3.61 cm; Width: 3.25 in. 8.26 cm; Length: 4.64 in. 11.79 cm