PowerBass XL-2205M, Руководство пользователя, Страница: 19 / 28

Fig.12 Bass EQ Control
BASS EQ Control
This special feature is designed to provide you more powerful sound quality, and it allows you to increase the
bass output up to +18dB at 45Hz (Rear Channel only). Keep in mind more is not always better. Setting the
control to the max (18dB) may stress the amplifier and woofer and could result in damage. Bass EQ only works
in Low Pass Mode (Rear Channel only on XL-4165M).
NOTE: More is not always better. By turning the BASS EQ all the way up to 18dB you can overwork
the amplifier and send the unit into thermal protection.
This control allows you to match the input level of the amplifier to the output level of your head unit. Matching
the input can be accomplished in three simple steps:
1. Set the volume of GAIN on the amplifier to Min (completely counter clock wise).
2. Turn on the head unit and adjust volume to 2/3 maximum, and set the BASS and TREBLE to zero.
3. Adjust the GAIN control clockwise until the sound
just begins
to distort, then back off slightly to cut
distortion and operate at optimum gain.
Remember, the GAIN control is not a volume control . Ignoring the three steps above may leave you with
damaged speaker and/or a damaged amplifier.
SET UP ADJUSTMENTS
INPUT Gain Adjustment
Fig.11 GAIN Control
GAIN
MIN MAX
Fig.13 Low Pass Control (LPF)
40Hz 400Hz
LPF (Low Pass Filter) Adjustment
Using this volume, adjust the LPF frequency for your subwoofer speaker(s) operation. Using the LPF control,
adjust the Low Pass Frequency to limit the amount of midrange going to your speakers. The X-OVER switch
position should be at “LPF”.
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