Adjusting Amplifier Controls cont.
Crossover Control
Where you set the crossover is very subjective and can be fine tuned to match your listening preference or speaker requirement. If the amplifier is driving small speakers (crossover set to HI PASS) this will eliminate the low frequencies from damaging the high frequency speaker. If the amplifier is driving subwoofers (crossover set to LO PASS). These are only guidelines because setting the right frequency depends on the listeners preferences. What sounds good to one may not sound good to another. The following guidelines should give you a good understand- ing for working with our amplifiers.
HI PASS
When using the amplifier to drive high and midrange speakers you will need to set the switch to HI PASS. This activates the 12dB@80Hz high pass crossover and filters out low frequencies.
LO PASS
When using the amplifier to drive woofers the switch will need to be set to LO PASS. This activates the 12 dB @80Hz low pass crossover and filters out upper frequencies.
Bass Boost
The BASS BOOST control is designed to give you increased output at 40 Hz. The setting for this control is subjec- tive, however, if you turn it up, you must go back and adjust the gain control to avoid clipping the amplifier.
Depending on the limits of the system or the limits of the woofers the BassBoost Control will give your system that extra kick. It will provide up to 12 dB of boost @ 40 Hz, which will more than make your system POUND!
GAIN CONTROLS
Remember, the gain control is not a volume control, it matches the output of the head unit to the input level of the amplifier and must be adjusted properly for best performance. All the way up or down is not necessarily the best. Turn the head unit up to about 3/4 volume. (eg. If the head unit goes to 30, turn it to 25.) Next, turn (clock- wise) the gain on the amplifier up slowly until you can hear audible distortion, then turn it down just a little. Adjust AMP 1 first, then proceed to AMP 2 if applicable. AMP 2 should be adjusted with the same process. If using the amplifier to power subwoofers and the Bass Boost is adjusted, the gain must be
KX100.2 & KX200.4 Technical Manual
Version 2.0
Page 10
