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Tube-Tech MP 1A Microphone Preamplifier

Item #: 
1274228076377
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The Tube-Tech MP 1A is a combined dual Microphone Preamplifier and Direct Instrument amplifier for microphones or instruments.The microphone inputs and outputs are balanced as well as fully floating. ... Click To Read More About This Product

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Overview

The Tube-Tech MP 1A is a combined dual Microphone Preamplifier and Direct Instrument amplifier for microphones or instruments.
The microphone inputs and outputs are balanced as well as fully floating. The inputs provide a switchable +48 V phantom power as well as a switchable -20 dB pad. Gain is adjustable in 5 dB increments from +20 dB to +70 dB.

The Direct Instrument Inputs are unbalanced with a gain ranging from + 10 dB to + 60 dB. The amplifiers are all tube based and the heaters are on a strict diet of DC-voltage only to avoid hum. All transformers, with the exception of the mains transformer, are enclosed in MU-metal cans. Input and output transformers come with a static screen between the primary and secondary wirings.

Features

  • Tube based push-pull output amplifier
  • Gain from +20 dB to +70 dB in 5 dB increments
  • Pad in front of input transformer (-20 dB)
  • Built-in +48 V phantom power
  • Microphone input impedance = 1,2 kohm
  • CMRR >60 dB @ 10kHz
  • Direct Instrument Jack-socket input for various instruments
  • DI input impedance > 1 Mohm
  • Frequency Response @ -3 dB: 15 Hz to 60 kHz
  • Typical noise figure: 5 dB @ 200 ohm
Specifications
  • Impedance Input Mic Preamp: >1,2 kohm
  • Impedance Input DI: 1Mohm/82pF
  • Impedance Output: 60 ohm
  • Frequency response @ -3 dB: 5 Hz to 60 kHz
  • Distortion THD+N @ 40 Hz: 0 dBu < 0.20 %; +10 dBu: < 0.20 %
    Noise Rg=200 ohm: 22 Hz-22kHz < -85 dBu (Output gain @ 20 dB), -60dBu (Output gain @ 60 dB); CCIR-468-4 < -75 dBu (Output gain @ 20 dB), -50 dBu (Output gain @ 60 dB)
    CMRR @ 10 kHz: < -60 dB
    Max. output @ 1 % THD+N: > +26 dBu
  • Gain: Mic Preamp, 0 dB to 70 dB, DI; 10 dB to 60 dB
  • Tubes:, ECC 82 2 pc, ECC 83 4 pc
  • Dimensions (H x W x D): 3.5" x 19.0" x 6.5" (88 mm x 483 mm x 165 mm)
  • Weight: 9.5 lbs (4.3 kg)
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