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AEA Microphones RPQ3 Microphone Preamp

Q&A SKU #M02863000000000
1799.0 $1,799.00
74.96 $74.96/mo. with 24 months financing*
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A two-channel full-rack preamp.

AEA's RPQ3 Microphone Preamp is the next evolution of high-impedance, high-gain preamplifiers.

Based on the circuit design of its predecessor, the RPQ3 features a powerful combination of ultra-low noise, low-distortion op-amps, ultra-high 68KΩ input impedance, and 85dB of clean gain all packaged in a durable full-rack chassis. The RPQ3 also includes an expanded EQ section with boost and cut controls for low and high end as well as a low-end frequency sweep to identify and eliminate rumbles and resonances.

Open and transparent but equally responsive and dynamic, the RPQ3 is a versatile tool for the front end of any signal path.

Improved EQ Section
The RPQ3 expands on AEA's signature CurveShaper circuitry that offers boost and cut curves for both bands of the EQ, allowing users to control their sound right at the start of the signal path.

With user-friendly controls and sweepable frequency knobs, the expanded EQ section of the RPQ3 offers boost and cut options for both lows and highs. Even when boosting aggressively, the RPQ3 remains phase coherent and flatteringly natural. LF/HF LED indicators illuminate only when the EQ is engaged, eliminating confusion and simplifying workflow. The RPQ3 also has a +/- 10dB gain range for increased accuracy in boosting and cutting.

Power Switching
The RPQ3 chassis features open-back access to the AC power switch, making voltage conversion between US standard 115V and 230V easy for set ups anywhere in the world.


  • Two-channel, high-gain, full-rack mic preamp
  • Ultra-high 68KΩ input impedance (phantom power off)
  • 7 to 85 dB of gain
  • LF/HF boost and cut
  • EQ boost/cut, +/-20 dB (high range), +/- 10dB (low range)
  • EQ in/out switching (overall and individual bands)
  • +48V phantom
  • Polarity switch
  • Pre-EQ line out (always active)
  • Insert Switch input switching (line input bypasses mic preamp)
  • Linear power supply with external 115V/230V switching

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RPQ3 Microphone Preamp Specifications:

Microphone Preamplifier to Line Out
  • Max Gain: 85dB
  • Max Output: +27 dBu into 600 Ω load
  • Input Impedance: 11.3 kΩ (with Phantom), 68 kΩ (no Phantom)
  • Output Impedance: 50 Ω
  • Equiv. Input Noise: -130 dBu
  • Frequency Response: 30 dB gain: (-0.6 dB 10 Hz, -3 dB 160 kHz)
  • Input and Output XLR Polarity: Pin 2 hot
Microphone & Line Inputs
  • THD+N: 0.0018% (1kHz, 22 Hz-22 kHz @30 dB Gain +4 dBu output)
EQ Circuitry
  • First order shelving response
  • 20 dB max boost/cut high range
  • 10 dB max boost/cut low range
  • Low frequency sweep continuously variable 40 Hz to 675 Hz
  • High frequency sweep continuously variable 2 kHz to 28 kHz

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