User manual MCINTOSH MA6200

[. . . ] THE MA 6200 INTEGRATED AMPLIFIER Reading Time: 40 Minutes Price: $2. 00 VARIOUS REGULATORY AGENCIES REQUIRE THAT WE BRING THE FOLLOWING INFORMATION TO YOUR ATTENTION. PLEASE READ IT CAREFULLY. WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. The Mclntosh you have purchased is a Model MA 6200. It has a serial number located on the rear panel of the chassis. Record that serial number here: Serial Number The model, serial number and purchase date are important to you for any future service. [. . . ] The volume of the channels can be varied relative to each other. turning the control to the left accents the left channel by reducing the right channel output. turning the control to the right accents the right channel by reducing the left channel output. The LOUDness control [small center knob] increases both bass and treble frequencies of both channels as it is turned clockwise. Adjustment of the LOUDness control allows life-like frequency balance when playing music softly. Its frequency response contour is accurately modeled after the family of "Equal Loudness" curves identified by Fletcher and Munson. The loudness circuitry is completely independent of the volume control. Therefore, any desired amount of compensation can be introduced regardless of volume control position. 9 Use the EQUALIZER FREQUENCY controls to modify the sound and tone balance of program material. Here are some suggestions from which to start: Problem Equalizer Correction Bass too weak Raise 30 and/or 150 Male vocalist needs reinforcing Raise 150 Female vocalist reinforcing Raise 500 Hum on program Reduce 30 Violins, trumpets dull Raise 1500 Drum "brushes" not audible Raise 10 K HEADPHONE JACKS The front panel HEADPHONE jacks have been designed to feed low impedance dynamic headphones. Electrostatic headphones generally require higher power than dynamic headphones. They must be connected to the speaker push connectors on the rear panel. Plug headphones into either front panel HEADPHONE jack. Adjust the front panel VOLUME control for comfortable headphone listening. Signal to the headphone jacks is not affected by the SPEAKER switches. TAPE PUSHBUTTONS IMPORTANT: When the MA 6200 is operated with either MONITOR pushbutton at the in position, the program heard will be that from the tape recorders only. Signal from any other source will not be heard from the loudspeakers. To hear any other source, make sure the MONITOR pushbuttons are OUT. The MONITOR switches are mechanically interlocked to prevent simultaneous monitoring from two tape recorders. If one button is at the in position, it must be pushed again to release it to the out position before the other button can be pushed. The MA 6200 is designed so it may be used with two tape recorders. The four left pushbuttons control the signal output of these recorders. They permit recordings to be monitored as they are being recorded, or copying of tapes from one recorder to another while listening to a separate program or the playback of either recorder. MONITOR TAPE 1 pushbutton out: The program source as selected by the INPUT SELECTOR is fed to the power amplifiers and heard through the loudspeakers; pushbutton in: Signal from a tape recorder plugged into INPUTS TAPE 1 is fed to the power amplifiers and heard through the loudspeakers. [. . . ] Speakers remain disconnected until the cause has been fixed. Under normal operating conditions the protective circuit has no a f f e c t on the operation of the output circuit. This is another example of Mclntosh continuous protection. POWER GUARD Amplifiers are capable of delivering large quantities of power when they are driven to clipping. [. . . ]