AUDIO
RESEARCH MCP-2
Pre-pramplifier
is a stereo preamplifier designed to provide the additional gain required (with
low noise) to alloe the use of low output moving coil phono pickup cartridges
with existing stereo preamplifiers.
It is intended for use in the highest quality systems.
It is intended for use in the highest quality systems.
Analog
Modules™ (type 3) are used to proide the voltage amplification with low noise.
No efort has been made to design a unit with theoretical minium noise. Since
"trade-offs" are involved in design for linearity vs. noise, primary
emphasis has been placed on providing a unit with the intrinsic linearity to
offer
state-of-the-art sound reproduction, while keeping noise to an acceptable and reasonable level.
state-of-the-art sound reproduction, while keeping noise to an acceptable and reasonable level.
Since a
pre-preamplifier must amplify very small signals up to the level of the normal
preamplifier's low level inputs, any instabilities or power supply weaknesses
will result in significant degrading of system performance. Because of this,
the MCP-2 contains a very sophisticated two-stage electronic regulation system
to assure stability and power line isolation. This feature becomes especially
important when using wide-band high power amplifiers at live music sound
pressure levels.
SPECIFICATION
Frequency
Response: ± 25dB from 20 Hz to 20
kHz -3dB points, 5 Hz and 100 kHz
Harmonic
Distortion: less than 0.005% at rated
output, IHF load.
Intermodulation
Distortion: less than 0.005% at rated
output, IHF load
Noise &
Hum: less than 50nV equivalent noise
with 10 Ω input (RIAA weighted)
Gain: s
witch selectable, 10, 16, 22, 28, 34 dB.
Imput
Impedance: switch selectable, 10, 30,
100 Ω and special (can be any value from 3 Ω to 1 k Ω ).
Output
Impedance: 50 Ω
Maximum
Inputs: 50 mV RMS
Rated
Outputs: 25 V RMS
Power
Requirements: 105-120/210-240 V AC, 50/60 Hz
Weight: 5.5kg (with cartoon 7.3kg)
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