Harman Kardon 75 Owners Manual - Page 9

When reproducing full orchestral material, the mode selector should be in the SQ MATRIX 1 position. When reproducing individual instruments or soloists the mode selector switch should be in the SQ MATRIX 2 position. LEFT FRONT - INTEGRATED AMPLIFIERS SPEAKERS -L F- LEFT BACK RIGHT BACK - SQ ENCODER - RIGHT FRONT - TWO - CHANNEL RECORDING EQUIPMENT - TWO CHANNEL RECORDING - LB ESQ" DECODER -RB -RE- ENHANCED STEREO This position should be used to enhance (convert) any stereo source into spatially expanded sound. When playing any stereo source, if your 75+ has been installed utilizing four or eight speakers, the sound will emerge from each speaker filling the room with sound that is almost as exciting as authentic 4-CH. It may also be used to spatially enhance a monophonic source. In this position the El 4 mode indicator lights will be illuminated, denoting stereo to 4-CH operation. INTEGRATED AMPLIFIERS SPEAKERS VOLUME CONTROL THE VOLUME control adjusts the signal level of any program material connected to your receiver. It is a four section control which simultaneously adjusts all channels, and its close tracking specifications insure that the relative volume level of each channel will be identical. SOUND FIELD BALANCE Your 75 + incorporates a unique four channel continuously variable balance control. The nature of stereo or 4-CH reproduction is such that it requires identical channels to attain the highest degree of faithfulness and spatial distribution. Any variation in the efficiency of any channel as compared to the others will disturb this relationship. Since there may be slight differences between program material, room acoustics, etc., your receiver includes a control to balance all channels. Sufficient range is covered by this control to permit rebalancing of the overall system even in cases where major unbalance exists. This control may be set anywhere within its range to attain system balance. It does not necessarily have to be set in the exact center position. When the BALANCE control is properly set, the apparent sound source will lie in a broad area between all speakers. TWO CHANNEL RECORDING RECOVERY CIRCUITS FOR "BACK" SOUNDS LEFT & RIGHT FRONT SPEAKER BALANCING LF (BACK SPEAKERS OFF) RF 4-CH DISCRETE In order to utilize this position you MUST have a four channel source con- nected to the system. In this position El 4 mode indicator lights will be illuminated denoting 4-CH to 4-CH operation. INTEGRATED AMPLIFIERS SPEAKERS LEFT FRONT- LEFT BACK- FOUR CHANNEL 0 I I C(. RECORDING RIGHT BACK- MOM CI RIGHT FRONT- On B LEFT FRONT LEFT BACK SPEAKER BALANCING • (RIGHT FRONT B BACK SPEAKERS OFF) RIGHT FRONT B RIGHT BACK SPEAKER BALANCING (LEFT FRONT B BACK SPEAKERS OFF) LB LEFT & RIGHT BACK RB SPEAKER BALANCING (FRONT SPEAKERS OFF) 8