WARRANTY
This product is guaranteed to be free
from defects in materials and workmanship
to the original purchaser for a period of 2
years from the date of purchase. Should
service be required, return the unit postage
prepaid along with the original sales receipt
to:
whirlwind
Attention - Repair
99 Ling Road
Rochester, New York 14612
The warranty on this product shall not
apply to defects or damage resulting from
abuse, abnormal use or from repairs or
modifications performed by anyone other
than whirlwind. If it is determined a
manufacturing defect has occurred,
whirlwind will repair or replace the unit at our
option and pay the postage back to you.
Specifications
Freq. Response at 50 dB gain (Not limiting)
Freq. Response at 40 dB gain (Limiting)
± 1 dBv 20-10 kHz; -2.5 dB at 20 kHz
± 1 dBv 20-20 kHz
THD + N at 50 dB gain (Not limiting)
THD + noise at 40 dB gain (Limiting)
THD + noise in limiting
± .1% 20-20 kHz
± .1% 100-20 kHz; ± 1.5% 20 – 50 Hz
At Threshold < 0.05%;In Limiting <0.11%
Equivalent Input Noise -115 dBV
Total Gain 70 dB; 83 dB w/ Bass and Treble at Max.
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
Size 1.6 H x 5.7 W x 2.8 D inches
Unit Weight 0.7 lbs, 1.1lbs w/ Power Supply
Shipping Weight 1.25 lbs
LMPRE
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.
Features
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
MIC TO LINE CONVERTER
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