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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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