The Whirlwind LMPRE is a convenient single channel microphone preamplifier with tone controls and a built in peak limiter. Use it anywhere mic level to line level conversion is required. Common applications include adding a microphone to consumer audio receivers, feeding line level inputs of any professional audio processor or directly into a power amp, distribution amplifier or powered speaker system.
Two place tone controls to enhance the intelligibility of voice applications
Phantom power (24VDC) supplied for condenser microphones
Peak limiter protects audio systems from signal overload and distortion
Level metering and Limit Threshold LEDS
Balanced male XLR and dual mono RCA output connections
Warranty - Yes
Spec Sheet available - Yes
Warranty (Length/Type):
2 Years
Equivalent Input Noise:
-115 dBV
Total Gain:
70 dB; 83 dB w/ Bass and Treble at Maximum
Gain of microphone preamp:
10 to 49 dB
Gain of Master Volume:
+/- 15 dB
Range of level pot:
Input Gain: 38.6 dB; Output Level 29.8 dB
Common mode rejection of input:
80 dB at 60 Hz
Maximum Input Level:
+4 dBV
Input Impedance:
20 kohm differential
Maximum Output Level:
+23 dBV
Output Impedance:
XLR 95 Ohms; RCA 1.6 kOhm
Noise at Unity Gain:
-104 dBV
Phantom Power:
Yes, 23.7 VDC
Power Consumption:
Typically 62 mA @ 24 VDC
Power Requirements:
24V 200 mA, unregulated; 2.1mm-center positive
Internal Mains fuse:
Automatic reset internal fuse; 100 mA