Tube-Tech MP 1A Microphone Preamplifier  

Item #: 
12747416287528228
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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 float... Read More

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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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