Harman Kardon HK6950R Owners Manual - Page 4
HK6850, HK6950R, Front, Panel, Controls
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HK6850 and HK6950R Front Panel Controls harman/kardon HK6t5OR O pead,P.' 0, 0'.4 Souxe xte O0 41:0 Power Switch Press this switch to turn the unit "On". Press it again to turn it "Off". (HK6950R only- While it is in the "On" position, the remote control can switch the unit between the "On" and "Standby" modes. The remote control is inactive when this switch is "Off". Note that this unit will draw a small amount of power when the unit is in the "Off" mode.) Power Indicator HK6850 - This indicator is illuminated in green when the power switch is "On" and is not illuminated when the power switch is "Off'. HK6950R - This indicator is illuminated in green when the power switch is pressed "On" and is not illuminated when the power switch is "Off'. While the power switch is depressed, this indicator is illuminated in amber when the unit is switched off by remote control, indicating the "Standby" mode. PROTECT light This light indicates that the protection circuitry of your amplifier is engaged. The light will come on 3 0 under two circumstances: • When you turn the unit on. As the unit prepares itself for operation, a muting circuit temporarily prevents pops or other noise from reaching your speakers. When the unit is ready for operation (in approximately 10 seconds), the light will go off. • When the unit detects a problem. This light will come on if your speakers wires are touching, causing a short circuit, or if your amplifier overheats. In the case of overheating, a thermal sensor will shut down the unit before damage can occur. Depending on the cause and extent of the overheating, the unit may take some time to cool down, and the protection circuit will remain in operation until the unit is cool enough to operate safely. In the case of a short circuit in the speaker wires, the protection circuitry will attempt to reset itself every 10 seconds, and you may hear a slight click as it does so. The protection circuit will remain in operation until the condition is corrected. 0 HEADPHONE jack Stereo headphones with a standard 1/4" plug can be connected to this jack. You can listen to headphones regardless of whether your speakers are playing. To listen to headphones only, turn the speaker selector to "OFF." ID PHASE CORRECT LOUDNESS At low volume levels, your ear is less sensitive to very low bass frequencies than it is at normal listening levels. The loudness button provides a special equalization curve that boosts low frequencies. The loudness button is useful for restoring full frequency balance at low volume levels, and can also be used to improve the bass response of small bookshelf speakers. The indicator light will be lit when PHASE CORRECT LOUDNESS is on. 43 SUBSONIC filter Warped records and turntable resonance can generate sub-audible frequencies that can cause your speaker's woofer cones to visibly flutter. This very low frequency noise, while inaudible, can rob power from your amplifier, can cause feedback through your turntable, can cause intermodulation distortion at audible frequencies, and can actually damage your woofers if the movement is violent enough. The subsonic filter
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