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Conrad Johnson MV75A-1
SOLD $2,495.00
JUN
2008
This classic nostalgic 75w/ch warm
& smooth valve amplifier exemplifies what we all love and admire
about valve amplifiers. Great performance like this seldom exists in
this price range with a condition that can only be described as MINT.
Introduced in 1979, the MV75 was conrad-johnson's second product, and
first power amplifier. An immediate success, and widely acclaimed as a
state-of-the-art contender, this power amplifier strongly signaled that conrad-johnson was indeed a serious company. Like the PV1, the MV75
employed metal film resistors and mylar capacitors throughout the
circuitry.
The MV75 broke new ground in tube amplifier design by featuring a
built in bias indicator circuit to simplify bias adjustment for the tube
output stage-a task that must be performed whenever output tubes are
changed, and periodically as they age. Earlier tube amplifiers required
additional test equipment and technical expertise to set the bias for
the output stage-a daunting task for many owners. The MV75 included a
built in LED bias indicator for each output tube requiring only a
screwdriver to accurately set the bias. This arrangement made it a
simple matter for owners to keep their amplifiers operating at peak
performance. All subsequent conrad-johnson tube amplifiers have included
this built in bias indicator.
The MV75A upgrade added high-voltage fuses to protect the amplifier from
shorted output tubes and upgraded the mylar capacitors to polypropylene.
The MV75A-1 upgrade included circuit revisions to reduce the impedance
of the regulated power supplies for the voltage amplifier and inverter
stages.
Features: 4, 8, 16 ohm speaker taps (screw type), one pair of inputs,
two plate fuses (MV75A, and MV75A-1), mono switch, power switch. Rack
mount panel and tube cage were available as an option.
V1: 5751
V2 & V3: 6FQ7/6CG7
V4 ~ V7: 6550
Replacement Tube Set RT75
Specifications:
Stereo 75 watts per channel, RMS, at 4, 8, or 16 ohms with both
channels driven from 30Hz to 15kHz with no more than 1% THD or IMD.
Monaural 150 watts, RMS, at 4, 8, or 16 ohms from 30 Hz to 15 kHz, with
no more than 1% THD or IMD.
Input Sensitivity: 2.35 Volts RMS to rated power
Frequency Response: 20Hz to more than 20kHz , +0, -.5dB
Hum & Noise: 94 dB below 75 watts
Dimensions: W480mm X D340mm x H220mm
Weight: 21 kg's
A very unique and
extraordinarily valuable collector's item!
Conrad-Johnson's very first power amplifier.
Unmarked front panel that has never been rack
mounted - Rare as all Hell.
Removable integrated tube chassis cage to protect
little fingers.
A very collectible show piece straight out of 1979
that has been kept in storage for most of it's life. For those of us old
enough to remember that great year who wouldn't want to go back in time
again?
With this baby at least you can claim a
slice of history for your very own.
Perfect loudspeaker terminating blocks that are
totally undamaged.
Huge power and output transformers help this baby
do what it was designed to do. Which is to play liquid smooth and sweet
music that only tubes can deliver with great dynamics that cannot be
equaled by modern amplifiers of today in this price range.
This is the real McCoy folks. Often copied but
never equaled.
Talk about user friendly. This amplifier is easier
to bias up then pumpkin pie. No technical knowledge required, only the
smallest amounts of common sense.
Beautifully styled and constructed this old world
quality will last you a lifetime and then some.
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