Hifionics HDBR Manuel de l'utilisateur - Page 5

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CENTER FREQUENCY: This knob allows you to select the frequency you want the HDBR

bass restoration circuit to maxximize.

FREQUENCY RANGE: This knob allows for you to adjust the range of frequencies from your

center point. All the way to the left will include the maxximum frequencies to maxximize, while

all the way to the right will enhance only a limited amount f frequencies near your CENTER

FREQUENCY.

OUTPUT LEVEL CONTROL: This knob allows for you to control the amount of signal voltage

you are sending through the RCA OUTPUTS to your amplifier(s). It is important to note that the

MBC1 has a built in line driver capable of sending an 'ultra clean' 9 volts of signal output to

your amplifier(s). Be sure to reference the end panel silk screening for GAIN/LEVEL

CONTROL on your amplifier(s). Some amplifiers cannot handle the full 9 volts and going

beyond the specified Input range on your amplifier(s) can be damaging.

GROUND ISOLATION: Occasionally alternator whine may appear in the system because the

source unit and amplifier may use different grounds. To help in this situation, we have provided

alternative grounding options. MAKE SURE THE SYSTEM IS OFF BEFORE SWITCHING

THIS SELECTION!

RCA INPUT: In most cases you will leave the selection switch in the BALANCED position. In

some systems the source unit may look for a ground through the RCA connections. In this

event you would switch the selection to UNBALANCED.

INPUT: RCA's from source unit connect to this location.

OUTPUT: RCA's from the HDBR connect to the inputs of your amplifier(s).

REMOTE: The BPR-1 Bass Processor Remote dash mount control connects here. This

remote allows for complete control of your audible subwoofer level along with a LED indicator

which brightens as you increase bass enhancement.

REM / 12V / GND:

-REM: Connects to a 12V+ switched source. The REM cable should have 12V when the

source unit is on and 0V when the source unit is off. Typically this would connect to

the 'Power Antenna' output wire on the back of your source units' wiring harness.

-12V: Connects to a 12V constant source. The Positive battery terminal is recommended and a

1 amp in-line fuse is required.

-GND: Connects to a ground location. Be sure that all paint is removed from the area of this

connection on the vehicle chassis.