Rockford Fosgate 500.2 User Manual

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• Disconnect Speaker(s) from the amplifier

• CD Software used to set levels is a test tone of 1kHz at “0dB” or “All Bits High”

• Source Unit set to 3/4 volume (or maximum unclipped output)

• Remove BLT Cover to access 

test pads and gain pots

• AC Voltmeter set to 

AC Volts

• AC Voltmeter “–” connected to 

RCA shield of BLT

• AC Voltmeter “+” connected to 

test pad inside the BLT

• Adjust BLT Gain from 

3.25 VRMS min. to 10.3 VRMS max per test pad (see chart below)

Be sure the time index reads greater than 30 seconds on source unit.

*Absence of gain overlap will reduce SPL and may not permit amplifier to reach full output power due to various CD
software.

+0dB*

3.25 VRMS

Best S/N Ratio, Reduced SPL

+5dB

5.8 VRMS

Good S/N Ratio & SPL

a
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1kHz Test Tone @ “0dB”

AUD

SEL

1

2

3

4

5

6

RDM

RPT

SCAN

PAUSE

D.SCN

DIM

AMFM

Ch

RPT

LD RDM

DISC

ST

P.SCN

LOUD

DSPL

R

CLOCK

ILLUM

PWR

AUTO

®

®

VOL

TUNE