Digital Audio Graphics Express
5718 Satsuma Avenue, North Hollywood, CA 91601
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Amplifiers > Guitar Amplifiers
Art TUBEMP - “The Original inch Edition tube preamp with 12AX7 tube, 48v phantom power, phase invert, 70dB gain
ART Single Channel Tube Preamplifiers ›
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
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 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: <600 Ω, 1/4″: <300 Ohms
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 <1 ms (limit), 20 ms (comp.)
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
Weight includes power supply and packaging
Digital Audio Graphics Express
5718 Satsuma Avenue
North Hollywood, CA 91601
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