Harman Kardon 150 Owners Manual - Page 7
Remote, Speaker, Switch, Dolby, Nr/tape, Contour, Muting, Function
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REMOTE SPEAKER SWITCH In order to hear all of the speakers connected to your remote system, the respective FRONT and BACK REMOTE speaker switches must be depressed. When in the "ON" position the speakers connected to the remote system are "ON". Should you desire to listen to stereo or 4-CH headphones alone, the speakers can be turned off at your discretion. EXT DOLBY NR/TAPE MON 2 SWITCH When an FM station broadcasts a Dolby encoded program, it may be decoded by use of an external Dolby processor. If you use an external processor, the Dolby switch when depressed, will decode an encoded program. If the Dolby button is depressed without an external processor connected, you will get zero output from your speaker system. Dolby IN receptacles may be used as a 2-channel Tape Monitor provided you are not using the Dolby Function. TAPE MON 1 SWITCH If your 4-CH tape recorder has a special monitoring feature, depressing this switch "IN" will permit you to monitor your tapes a split second after they are recorded. When not in use this switch must be in the "OUT" position, otherwise it will defeat the output of the receiver. This switch and associated rear panel receptacles can also be used as an additional set of stereo or 4-CH high level inputs. CONTOUR SWITCH One of the limitations of human hearing is its tendency to lose sensitivity to the very low pitched sounds as the program sound level is reduced. It is this characteristic (known as the Fletcher-Munson effect) which causes one to play music programs at high listening levels in order to experience the full rich tone available from fine modern recordings. The Harman/Kardon CONTOUR switch compensates for this effect, thereby eliminating high listening levels as a requisite for full enjoyment of reproduced music. For warm, full-bodied reproduction at low listening levels, throw the CONTOUR switch to the IN position. At high levels, the CONTOUR switch has no effect. FM MUTING SWITCH The purpose of the muting circuit is to reduce audible noise when tuning from station to station. Since very weak signals may be muted at the same time, the front panel FM MUTING switch may be used to defeat the muting circuit on weak signals. To reduce interstation noise, push the MUTING switch "ON". To defeat the circuit, push the switch "OFF". To adjust muting levels see MUTING ADJUSTMENT CONTROL. HIGH CUT SWITCH The HIGH CUT filter has been designed to reduce the high frequency response of your receiver. This will reduce annoying record scratch, tape hiss, FM background noise, etc. LOW CUT SWITCH At times, record changers, turntables and even some FM stations produce an objectionable low frequency signal that is strong enough to be introduced into the playback system. This is known as rumble and can be cancelled out by the special low frequency cut off filter network included in this receiver. Whenever rumble is present depress the LOW CUT switch. FUNCTION SWITCH This switch selects the desired program source to be heard through your music system. PHONO 1/PHONO 2 Use these positions for all mono, stereo or SQ matrix records. Any standard stereo record player can play SQ matrix discs without special modifications. The SQ disc is completely compatible with stereo systems and can be played on any quality record changer or manual turntable using a high compliance magnetic pickup. Your existing record player connected to the LEFT and RIGHT, PHONO 1 or PHONO 2 input receptacles will play your mono, stereo and SQ records. In order to play SQ discs in 4-CH the mode switch should be placed in either the SQ matrix or SQ matrix blend positions. STEREO FM This is the normal listening position for all monophonic or stereophonic FM broadcasts. In this position the stereo indicator light and automatic switching circuit built ino your receiver are operative. For further details refer to paragraph on "SELECTING MONOPHONIC OR FM STEREO BROADCAST". Should you receive a weak stereo signal whose quality has been degraded by noise or poor signal conditions, and you wish to listen to this stereo broadcast monophonically, switch to the FM position. FM In this position you can listen to stereophonic broadcasts monophonically while monophonic broadcasts will appear unchanged. 6