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Tube PreAmp/Opto-Compressor/Limiter

  • ART Tube MP C Project Series 2
  • ART Tube MP C Project Series 3
£99.99 Inc VAT
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Quick Overview

ART Tube MP/C Project Series is a Tube PreAmp that includes Opto-Compressor and Limiter.

  • Description
  • Additional Information

ART Tube MP/C Project Series Product Description

The Tube MP/C (PreAmplifier/Compressor) is a multi-purpose tool for audio engineering and recording. Two independent circuits featuring a tube-based analog preamplifier and a VCA-less compressor with optical gain reduction control are housed in one, convenient desk-top chassis. Used as a mic/line preamp or as a DI (direct) box, the Tube MP/C is designed to work seamlessly with any recording, sound-reinforcement, or electronic instrument setup. A R T's Tube MP/C circuitry is a hybrid design utilizing the latest, most advanced, solid-state and tube technology.

The preamplifier's active balanced solid-state input provides extremely low noise and excellent common mode rejection. The ¼-inch high impedance input prevents loading of any connected device making the Tube MP/C perfect for DI or line level applications. The preamplifier's second stage 12AX7a tube runs on a regulated DC voltage providing an additional 20dB of gain.

The compression circuit features a VCA-less design and utilizes optical electronics (Vactrol) coupled with a 12AX7a vacuum tube gain stage for superior musical performance.

Optional ART SM1 stand mount securely attaches the Tube MP/C to any microphone stand for live stage or studio applications is available.


  • Tube-based mic/line preamplifier with up to 80 dB of gain
  • Hand-selected 12AX7a tube
  • Optical (VCA-less) compressor circuitry = transparent dynamics control
  • ¼-inch unbalanced inputs and outputs
  • XLR balanced inputs and outputs
  • Transformer isolated XLR output
  • Selectable output range for Line/Instrument interface levels
  • LED meters for Tube Warmth, Gain Reduction and Output level
  • +48V phantom power
  • Phase reversal switch
  • Selectable release time settings
  • > 90dB dynamic range
  • Custom extruded aluminum chassis

Technical Specifications

  • Frequency Response - 30 Hz - 60 kHz +/- 1 dB balanced output, 20 Hz - 60 kHz +/- 1dB 1/4" output
  • Total Harmonic Distortion -  <0.1% @ max gain
  • CMMR > 60 dB @ max gain
  • Equivalent Input Noise -128dBu typical ("A" wtd., Shorted XLR balanced input, gain @ max)
  • Input Impedance - 1M Ohms 1/4" input, 5K Ohms XLR input
  • Input/Output Connections Input: XLR balanced or 1/4" balanced. Output: 1/4" unbalanced XLR balanced, transformer isolated.
  • Maximum Gain +80 dB (balanced in-out, +64dB (unbalanced input, balanced output)
  • Maximum Input Level -  unbalanced (Inst): +15 dBu, balancd (mic): +10 dBu
  • Maximum Output Level +19 dBu (Line mode)
  • Output Impedance XLR:
  • Low Cut Filter -3 dB @ 70 Hz, 6dB/Octave
  • Phantom Power Switch selectable, +48Volts DC, filtered, current limited
  • Chassis Type - All aluminum black anodized with integral rubber sides
  • Power Requirements - 9VAC @ 1000mA (external)
  • Attack Time
  • Release Time 150ms (fast), 20ms - 3s Program dependant (Auto)
  • Tube Type Hand selected 12AX7a
  • Compressor Slope 2:1 (Comp.) / 11:1 (Limit)
  • Dimensions 1.75"H x 5.9" W x 6.5" D (44.5mm x 150mm x 165mm)
  • Weight 2.9 lbs (1.32 kg)
  • Notes 0dBu = 0.775V rms

ART Tube MP/C Project Series Additional Information

Brand ART
Condition New
EAN 0000888880282