McIntosh C-28 preamplifier in excellent condition. Glass is new. It has been serviced and fully tested. Includes our original Performance Verification Report.
Also Included with This Item:
Original Owner's Manual
Original Product Brochure
Original Service Manual
The McIntosh C28 is a high quality stereo pre-amplifier.
Each channel of the C28 consists of four parts, a low level amplifier, high level amplifier, active filters and headphone amplifier.
Common regulated power supplies furnish power to both channels.
New records and tapes with greatly increased dynamic range demanded new low noise circuits. McIntosh scientists developed a new DIFFERENTIAL INPUT CIRCUIT that reduced phono input noise levels from approximately 2.4 microvolts in an excellent preamplifier to a new level of only 1.2 microvolts! The differential circuit has only been used in very sensitive professional test equipment and in medico-electronics. The (C-28) preamplifier will not overload or change distortion for any phono input signal from 2 millivolts up to 500 millivolts. This represents a dynamic range of approximately 3000 to 1 on a voltage basis. This fantastic improvement necessitated extreme care in layout and manufacturing. The signal circuits need careful shielding and wiring with coaxial cable to prevent noise and crosstalk in the preamplifier from destroying the low noise advantages of the circuit.
Comp: Pres, Flat, Loud
Bass Trim (L, R)
Phono 1 Level (L, R)
Phono 2 Level (L, R)lassicaudio.com
Headphone Level (L, R)
Output Level (L, R)
Center Channel Levelclassicaudio.com
Input Selector: Aux, Tuner, Phono 1, Phono 2, Mic, Tape HD
Mode Selector: L to L+R, R to L+R, Stereo Reverse, Stereo, Mono, L+R to L, L+R to R
Tape Copy 1>2
Tape Copy 2>1
Speakers Main Off
Speakers Remote Off
TAPE COPY 1>2
TAPE COPY 2>1
MAIN SPEAKERS OFFclassicaudio.com
REMOTE SPEAKERS OFF
Fully Back Illuminated Glassclassicaudio.com
AC Outlet Unswitched
AC Outlet Switched (4)classicaudio.com
AC Outlet Power Amp (2)
Phono Input 1 (L, R)
Phono Input 2 (L, R)
Aux Input (L, R)
Tuner (L, R)
Mic (L, R,)
T Head (L, R,)
Tape Monitor 1 Out (L, R)classicaudio.com
Tape Monitor In 1 (L, R)
Tape Monitor Out 2 (L, R)classicaudio.com
Tape Monitor In 2 (L, R)
Main Out 1 (L, R,)
Main Out 2 (L, R,)
Center Out 1
Center Out 2
Line Output (L, R,)
Speaker Control Relay Jack
30 Pounds C-28
15 Pounds Cabinet
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This item includes our 60 day / 2 year limited warranty!
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