ART Tube MP/C Mic Preamp & Compressor

Tube preamp and optical compressor, can be used as a mic/line preamp or as a DI (direct) box

The Tube MP/C (PreAmplifier/Compressor) is a multi-purpose tool for audio engineering and recording. 2 x 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. ART'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 14" 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 20 dB 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.

The specificaiton of the Tube MP/C:

CMMR: > 60 dB @ max gain
Equivalent input noise: -128dBu typical (A wtd., shorted XLR balanced input, gain @ max)
Frequency response: 30Hz - 60 kHz +/- 1 dB balanced output, 20 Hz - 60 kHz +/- 1dB 1/4" output
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, +64 dB (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: <600 Ohms, 1/4": <300 Ohms
Low cut filter: -3 dB @ 70 Hz, 6 dB/Octave
Phantom power: switch selectable, +48V DC, filtered, current limited
Chassis type: all aluminum black anodized with integral rubber sides
Power requirements: 9V AC @ 1000mA (external)
Attack time: <1 ms (limit), 20 ms (comp.)
Release time: 150ms (fast), 20ms - 3s Program dependant (Auto)
Total harmonic distortion: <0.1% @ max gain
Tube type: hand selected 12AX7a
Compressor slope: 2:1 (comp.)/11:1 (limit)
Dimensions: 44.5mm H x 150mm W x 165mm D
Weight: 1.32kg
Notes: 0 dBu = 0.775V rms.

Also known as: ART Tube MP/C, ART Tube MP/C Preamp and Optical Compressor DI, ART Tube MP/C Tube Preamplifier / Compressor

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