Used McIntosh C712 Stereo Preamplifier for sale
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Mclntosh has earned world renown for its technical contributions to improved sound reproduction. When you bought Mclntosh, you bought not only high technology, but also technological integrity proven by time. The Mclntosh C712 System Control Center is another example of Mcintosh engineering excellence.
Mclntosh audio products are always designed for the best sound and superior reliability. Dedication to achieving these goals since 1949, has earned Mclntosh the reputation for creating the finest quality products in the stereo industry. The Mclntosh "Classic" design has also been recognized as the most outstanding in the industry.
Mclntosh products are designed to be maximum user friendly so anyone can enjoy using them. Another Mclntosh design policy is to provide products that are easy to maintain. The C712 System Control Center is simple, yet elegant. There are many useful features to enhance your listening enjoyment. The C712 is fully remote controlled and all operating functions can be performed at the front panel, from the Hand Held Remote Controller or from a wall mounted Keypad.
There are seven pairs of high level inputs to accommodate the traditional program sources as well as the most recent new sources. These include CD players, audio signals from laser disc players and audio from video recorders. A PHONO input is also provided for a record player with a magnetic phono cartridge. If the PHONO is not used, the AUX input can accommodate another high-level program source.
DIGITAL LOGIC integrated circuits drive ELECTROMAGNETIC SWITCHES on all inputs and operating functions for the most reliable, lowest distortion switching available today.
Two TAPE MONITOR switches allow the use of two separate tape recorders. Two TAPE COPY switches are also provided for easy tape copying from one recorder to the other. A continuously variable Active Loudness control allows loudness compensation to be selected for any setting of the volume control. The Loudness control circuit elements are removed from the signal path when the control is in the flat or fully counterclockwise position.
Bass and Treble tone controls provide 12dB of boost or cut. At the center or detent position of the tone controls, all tone control circuits are removed from the signal path. Other features include a front panel Headphone output, a Mono switch and rear panel Signal Processor Loop connections that affect the main outputs. Power supply voltage regulator circuits maintain stable operation even though the AC power line may vary. A double shielded power transformer completely isolates it from the audio circuits.
A pair of Balanced Outputs is also included to take advantage of the greater noise reduction capabilities of balanced cables.
SPECIFICATIONS
FREQUENCY RESPONSE
+0, -0.5dB from 20Hz to 20,000Hz
RATED OUTPUT
2.5V at BALANCED and MAIN (Unbalanced) OUTPUTS.
MAXIMUM VOLTAGE OUTPUT
8V from 20Hz to 20,000Hz at BALANCED and MAIN (Unbalanced) OUTPUTS.
TOTAL HARMONIC DISTORTION
0.002% maximum from 20Hz to 20,000Hz at rated output.
SENSITIVITY
Phono: 2.5mV for 2.5V rated output, (0.5mV IHF).
High Level: 250mV for 2.5V rated output, (50mV IHF).
SIGNAL-TO-NOISE RATIO, A-Weighted
Phono: 90dB below 10mV input, (84dB IHF).
High Level: 105dB below rated output, (95dB IHF).
MAXIMUM INPUT SIGNAL
Phono: 90mV
High Level: 10V
INPUT IMPEDANCE
Phono: 47K ohms and 65pF Capacitance
High Level: 22K ohms
VOLTAGE GAIN
Phono to Tape: 40dB
Phono to Main: 60dB
High Level to Tape: OdB
High Level to Main: 20dB
TONE CONTROLS
Bass and Treble, variable 12dB boost to 12dB cut.
AC POWER OUTLET
One Switched; Total current capacity 11.6 amperes, (1400 watts)
MECHANICAL
SIZE
Front Panel measures 17-1/2 inches (44.5cm) wide by 3-5/8 inches (9.2cm) high.
Chassis depth behind the mounting panel including clearance for connectors is 17-1/2 inches (44.5cm).
Knob clearance required in front of mounting panel is 1-1/8 inches (2.9cm).
FINISH
Front Panel is glass with gold/teal nomenclature illumination. The chassis is black.
WEIGHТ
17 lbs. (7.7Kg) net
