Whirlwind LMPRE Microphone Preamplifier

Whirlwind LMPRE Microphone Preamplifier

Whirlwind LMPRE Microphone Preamplifier

Whirlwind LMPRE Microphone Preamplifier

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Product Highlights

  • Compact Single Channel Preamp
  • Adds up to 70dB of Gain
  • +24V Phantom Power
  • 2-Band EQ
  • Onboard Peak Limiter
  • LED Output Metering
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Whirlwind LMPRE overview

  • 1Description

The Whirlwind LMPRE Microphone Preamplifier adds up to 70dB of gain to one microphone channel. Its compact design makes it an extremely portable and efficient choice to keep in your audio toolbox.

The LMPRE has a balanced XLR input with switchable phantom power. Its initial gain stage is followed by a built-in equalizer, with a low band at 250Hz and high band at 4kHz. These fixed bands are mainly intended to maximize intelligibility; they can be cut or boosted by approximately 6dB.

A rare feature in an affordable preamp, the LMPRE includes an onboard peak limiter with LED metering. The activity of the limiter is governed entirely by the input level, which makes it free to function like an effect rather than simply an output protector.

The LMPRE has balanced XLR and mono-summed RCA outputs for connection to just about any audio amplification system. The 3-level LED output metering allows you to carefully monitor signal strength.

The Whirlwind LMPRE is an excellent choice for adding a high-quality mic input to any audio system.

Whirlwind LMPRE Microphone Preamplifier
  • +24V Phantom Power
  • 2-Band EQ
  • Balanced XLR input/output
  • Additional mono-summed RCA output
UPC: 692465021906
In the Box
Whirlwind LMPRE Microphone Preamplifier
  • Power Supply
  • 2-Year Limited Warranty
  • Table of Contents
    • 1Description

    Whirlwind LMPRE specs

    Input Connectors Balanced XLR x1
    Input Gain 10 - 49 dB
    Input Impedance 20,000 Ohm differential
    Maximum Input Level +4 dBV
    Phantom Power +23.7 VDC
    Output Connectors Balanced XLR x1
    Mono-summed RCA pair x1
    Output Impedance XLR: 95 Ohms
    RCA pair: 1,600 Ohms
    Output Gain +/-15 dB
    Maximum Output Level +23 dBV
    Frequency Response @50 dB gain (not limiting): 20 - 10,000 Hz +/-1 dBV;
    -2.5 dB @ 20,000 Hz

    @40 dB gain (limiting): 20 - 20,000 Hz
    Total Gain 70 dB; 83 dB with bass and treble controls at max
    Equivalent Input Noise -115 dBV
    Noise At unity gain: -104 dBV
    THD + N @50 dB gain (not limiting): +/-0.1%, 20 - 20,000 Hz
    @40 dB gain (limiting): +/-0.1%, 100 - 20,000 Hz; +/-1.5% 20 - 50 Hz
    Limiting: @ threshold < 0.05%; limiting < 0.11%
    CMR 80 dB @ 60 Hz
    Power Consumption Typically 62mA @ 24 VDC
    Power Requirements 24 V, 200 mA, unregulated; 2.1mm-center positive
    Fuse Automatic reset internal fuse; 100 mA
    Dimensions (H x W x D) 1.6 x 5.7 x 2.8" (4.06 x 14.48 x 7.11 cm)
    Weight 0.7 lbs (0.32 kg)
    1.1 lbs (0.5 kg) with power supply
    Packaging Info
    Package Weight 1.3 lb
    Box Dimensions (LxWxH) 8.7 x 3.7 x 2.7"

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