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Setting AccuBASS®
AccuBASS is a feature that restores bass frequencies on factory systems that
roll off the bass as you increase volume. If you can hear that the bass does not
increase as you continue to turn up the volume on the head unit, then your
factory system is most likely rolling off bass.
AccuBASS only affects the Channel 3 outputs.
There are two AccuBASS controls and a status LED used during initial setup:
AccuBASS Threshold determines when AccuBASS turns on, and AccuBASS
Level adjusts how much bass is restored. The status LED will illuminate when
AccuBASS is active.
1. Turn AccuBASS Threshold all the way down
(counterclockwise).
2. Set AccuBASS Level at the 12 o'clock position.
3. Play some bass-heavy music you are familiar with.
4. Slowly turn up head unit volume until you start to hear bass dropping
out (roll off ). Stop turning up the head unit volume.
5. Slowly turn AccuBASS Threshold to the right (clockwise) until the status
LED illuminates and you hear bass being restored. Stop adjusting
AccuBASS Threshold.
6. With AccuBASS Threshold set you can now adjust AccuBASS Level to your
liking.
If the sound system in your vehicle does not reduce bass output at higher
volumes, AccuBASS may be defeated, or used without the threshold setting
(on all of the time). To defeat (turn off ) AccuBASS, turn AccuBASS Threshold all
the way down (counterclockwise), and turn AccuBASS Level all the way down
(counterclockwise).
To keep AccuBASS on all of the time so it does not turn on/off at a set
threshold, turn AccuBASS Threshold all the way up (clockwise). Now,
regardless of the head unit volume, AccuBASS will always be on. Adjust
AccuBASS Level to your liking.
ACR-1 Dash Control
The ACR-1 dash control may be mounted under the dash using its own
bracket or custom mounted in the dash (or anywhere else). It should be within
reach of the driver and in a spot where the LED is plainly visible.
Bracket Installation
Slide under the dash and place the dash control in the desired position, mark
the two mounting holes, drill pilot holes and secure with two screws.
Custom Installation
Remove the dash control from the mounting bracket by pushing the LED
from its holder and then removing the circuit board and rotary control from
the bracket. Choose a suitable location and drill a 9/32" hole for the control
shaft along with a 1/8" hole for the lock tab and a 13/64" hole for the LED
holder. Reassemble the ACR-1 components in their new custom location.
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