Big Bear Audio MP1+ 500 Series Microphone Preamplifier with Interchangeable Colour Slot

BH #BIMP1PLUS • MFR #BBA MP1+
Big Bear Audio
Big Bear Audio MP1+ 500 Series Microphone Preamplifier with Interchangeable Colour Slot
Key Features
  • Discrete Class-A Mic/Line Amplifier
  • Includes Discrete Saturator Card
  • Interchangeable DIYRE Colour Slot
  • Discrete Instrument Input
The Big Bear Audio MP1+ is a low-noise, discrete Class-A microphone preamplifier with high-impedance, discrete instrument input for 500 Series racks. It features a Colour slot that lets you interchange a wide variety of DIYRE modular cards (available separately) to impart various types of analog coloring to your sound.
Special Order
Expected availability: 7-14 business days
$549.00

Important Notice

  • This item is noncancelable and nonreturnable.
Construction
MP1MP1+
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Big Bear Audio MP1+ Overview

The Big Bear Audio MP1+ is a low-noise, discrete Class-A microphone preamplifier with high-impedance, discrete instrument input for 500 Series racks. It features a Colour slot that lets you interchange a wide variety of DIYRE modular cards (available separately) to impart various types of analog coloring to your sound.

The MP1+ combines a discrete, electronically balanced mic/line input with a Lundahl output transformer and an Elma stepped attenuator. It provides up to 60 dB of gain with a frequency response of 20 Hz to 50 kHz and can be used as a studio reference amplifier.

The unit includes a Discrete Saturator card designed to add the saturation characteristics of a vintage console to your sound.

Key Features

  • Discrete Class-A amplifier
  • Interchangeable DIYRE Colour slot
  • Mic/line input at rear (balanced)
  • Discrete, high-impedance instrument input on front panel (unbalanced)
  • Lundahl output transformer
  • Elma stepped attenuator with 21 positions
  • Audio-grade capacitors
  • Low noise floor at -128 dB EIN 
  • Frequency response of 20 Hz to 50 kHz
  • LED VU meter
  • Includes extra-long mounting screws

Discrete Saturator Card

  • Adds vintage console saturation
  • NOS germanium and silicon transistors
  • Combination of silicon and germanium diodes
  • Adds diode-compressor-like tone
  • Completely discrete Class-A signal path

Big Bear Audio MP1+ Specs

Format500 Series module
Interchangeable DIYRE Colour slot
AmplifierDiscrete Class-A mic/line amplifier
TransformerLundahl output transformer
Input Gain0 to 60 dB
Elma stepped attenuator with 21 gradual steps
InputInstrument Input: 1 x TRS jack on front panel
Switch between balanced input at rear or unbalanced input at front
Input ImpedanceMic/Line: 4.8 kOhms
Instrument: > 2 MOhms
Phantom Power+48 V, switchable
Phase InvertYes
Output Trim Range-20 to 0 dB
Total Harmonic Distortion (THD)Mic/Line: 0.01%
Instrument: 0.04%
Frequency Response20 Hz to 50 kHz, ± 0.5 dB at 0 dB gain
Equivalent Input NoiseBetter than -128 dB EIN
Signal to Noise RatioBetter than -100 dB
VU Meter5 x LEDs
WeightNot specified by the manufacturer
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