Setting The Controls - JBL MS-BassPro SQ Bedienungsanleitung

crossover control: Use this control to adjust the amount of high-
frequency information present in the MS-BassPro SQ's output. A lower
value allows less high-frequency content.
Input level control: Use this control to balance the relative volume of
the MS-BassPro SQ with the other speakers in the vehicle.

settIng the controls

1. Make sure the head-unit power is off and the MS-BassPro SQ's Input
Level control is set to minimum.
2. Set the MS-BassPro SQ's Crossover control to its maximum frequency
of 120Hz and set the Bass Boost control to the 12 o'clock setting.
note: If you are using a Wireless Bass Control with the MS-BassPro SQ
(sold separately), set it to maximum.
3. Turn the head unit on and play a selection of your favorite music track
that has substantial bass.
4. Adjust the Crossover control counterclockwise until you hear only
bass information coming from the MS-BassPro SQ. For example,
you should not hear vocals coming from the subwoofer when you are
seated in the normal listening position.
5. Adjust the Bass Boost control either clockwise or counterclockwise to
suit your taste. Be sure to find a setting that does not create audible
distortion in the subwoofer's sound.
IMportant: If in the next step the MS-BassPro SQ's volume is too low
even with the Input Level control turned all the way up, turn the Input
Level control all the way down (full counterclockwise) and change the
subwoofer's Input Level switch to the "Low" position. Then repeat the
next step.
6a. If you installed the Wireless Bass Control, set the MS-BassPro SQ's
Input Level control to its maximum and set the remote level control's
knob to the maximum level that provides undistorted output from the
MS-BassPro SQ with the head unit's volume control at its 3 o'clock
setting. Use the Wireless Bass Control to adjust the subwoofer
volume according to your taste while avoiding distortion from the
MS-BassPro SQ.
6b. If you did not install the Wireless Bass Control, adjust the
MS-BassPro SQ's Input Level control to the maximum level that
provides undistorted output from the MS-BassPro SQ with the
head unit's volume control at its 3 o'clock setting. After using the
subwoofer for a while, if you find that this setting produces too much
bass, you can reduce the subwoofer's Input Level control setting.
7. With the Phase switch set at 0°, play a music track that has impactful
drums, and listen for the upper bass content, paying attention to the
impact of the drums. Then set the Phase switch to 180°, and listen
to the same music again. There may be more upper bass, less upper
bass or no change at all. The Phase switch position that provides the
most upper bass is technically correct, but you can choose either
setting according to your taste.
note: In most cases the above steps will provide you with satisfactory
results. However, the actual process may require several readjustments
of each control, since the settings will interact with one another. If
necessary, consult your authorized JBL car audio dealer for help in tuning
your system.
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