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ART TubeMP/C (PreAmplifier/Compressor)

Varenr: 830350
Leveringstid fra fjernlager (5 dager)

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.

Key Features

  • Tube-based mic/line preamplifier with up to 80 dB of gain
  • Hand-selected 12AX7a tube
  • Optical (VCA-less) compressor circuitry = transparent dynamics control
  • 1/4-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


Frequency Response30 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 Impedance1M O 1/4? input, 5K O XLR input
Input/Output ConnectionsInput: 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 Levelunbalanced (Inst): +15 dBu, balancd (mic): +10 dBu
Maximum Output Level+19 dBu (Line mode)
Output ImpedanceXLR: <600 O, 1/4?: <300 O
Low Cut Filter-3 dB @ 70 Hz, 6dB/Octave
Phantom PowerSwitch selectable, +48Volts DC, filtered, current limited
Chassis TypeAll aluminum black anodized with integral rubber sides
Power Requirements9VAC @ 1000mA (external)
Attack Time<1 ms (limit), 20 ms (comp.)
Release Time150ms (fast), 20ms – 3s Program dependant (Auto)
Tube TypeHand selected 12AX7a
Compressor Slope2:1 (Comp.) / 11:1 (Limit)
Dimensions1.75?H x 5.9? W x 6.5? D (44.5mm x 150mm x 165mm)
Weight2.9 lbs (1.32 kg)
Notes0dBu = 0.775V rms
Weight includes power supply and packaging
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