Harman Kardon CIT25 Owners Manual - Page 7
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17 18 19 20 26 27 28 129 30 31 32 33 34 35 2 Sound imbalances between left and right channels can be caused by speaker placement, listening room conditions and even some improperly recorded musical sources. For example, your listening position may be nearer one speaker than the other. Use the BALANCE control (13) to concurrently change left and right output volumes and create a more balanced musical image between the speakers. 45:,:fff.01.0g. ink A remote control muting circuit can be used to reduce the sound level by 20dB. When the remote MUTE button is pressed, the front panel MUTE INDICATOR (14) illuminates. The muting feature is very convenient for lowering the volume level temporarily (for instance, to answer a phone call or cue a record) without disturbing the original setting of the master VOLUME control (15). '4, " • .11 Stereo headphones may he plugged into this jack for private listening, The output volume is changed by the master VOLUME control, either manually or from the remote. All of the controls discussed so far are also found on the Citation 25 handheld remote control unit. In addition, nineteen more controls are provided behind a flip-down panel on the front of the preamplifier. While each has an important function, you will not need to use them as often, so they have been concealed for simplicity and to enhance the appearance of the Citation 25. 'C a," 2kIlz Delenl 202Ile Ale 11. 61, VLHI „.. 09,3 Turnovor ,CME Ucrmoll See Figure 3 Citation 25 Flip-Down Panel Press in and release the top of the flip-down panel to open. 21 22 r,nZ Scare, Record l- -1 I ) l-- I r -- 1 F- 1 I A/V1 A/2 23 24 25 one trots. As was previously noted, the Citation 25 separates the functions of tone frequency turnover and amount of boosticut for added flexibility. The BASS (17) and TREBLE (20) knobs control the amount of effect (plus or minus 10dB) provided by the 3-position TURNOVER slide switches (18 & 19). Both treble and bass TURNOVER switches have a central position marked DEFEAT. When set at this position, the adjacent BASS and TREBLE rotary knobs will have no effect. This provides an excellent method of assessing "before" and "after" tone control adjustments quickly. Simply return the TURNOVER switches to the DEFEAT position several times as you make bass and treble adjustments to compare their effect to the "tlat", unequalized sound. The Citation 25's tone control system is primarily recommended as a method of gently correcting tonal deficiencies (or overabundances) in program material. Contrary to popular belief, many recordings receive arbitrary equalization during recording, mixdown and mastering, according the widely varying tastes of the engineer, producer and mastering technician. Thus an overly shrill or "hoomy" recording may be made more listenable with a slight decrease in treble and bass, respectively. An older record lacking in low bass may be enhanced. An indistinct vocal may be made more clear by relatively "boosting" the midrange through the reduction of both treble and bass controls, While the Citation 25 tone controls may also he used to correct for overall room and speaker deficiencies, that is not their primary purpose. It is recommended that you explore alternatives such as speaker placement, adjustment of speaker level controls, acoustic room treatments, etc. so that the position of the Citation 25 tone controls may be left in their DEFEAT position at most times. The PHASE-CORRECT LOUDNESS (21) circuit provides a special fixed equalization curve which compensates for the ear's decreased sensitivity at low listening levels. When using your system for background music, engage this button to restore frequency balance. As mentioned in the introduction to this manual, the Phase-Correct Loudness circuit is unique both in its equalization curve (flat over 400Hz, +3dB at 200Hz) and in its ability to maintain phase accuracy throughout the midrange portion of the sound spectrum. Even if you have developed an understandable aversion to "loudness" buttons in the past, you are urged to try the Citation 25's new approach to low frequency psychoacoustic sound enhancement.
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