Справочник Пользователя для Rockford Fosgate 500.2
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Level Setting the BLT
• 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.
software.
Gain Overlap
BLT Output (AC Volts)
Performance Characteristics
+0dB*
3.25 VRMS
Best S/N Ratio, Reduced SPL
+5dB
5.8 VRMS
Good S/N Ratio & SPL
+10dB
10.3 VRMS
Best Compromise between S/N Ratio & SPL
a
d
v
a
n
c
e
d
d
v
a
n
c
e
d
O
p
e
r
a
t
e
r
a
t
i
o
n
n
+
–
VAC
BALANCED LINE TRANSMITTER
®
®
1kHz Test Tone @ “0dB”
L
R
L
R
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
10.3