Hertz SPL Show - Block Diagrams

User’s Manual
61
SP 1.900
to REMOTE IN
FILTER FREQ.
L R
*USS: USS technology allows amplifier to work with head-units featuring the “speaker load detection” circuit.
HI: HI LEVEL INPUT (2 - 22VRMS) LO: PRE INPUT (0.6 - 6VRMS)
LP FILTER
ON
LP
OFF
AMP
OFF
ON
INPUT LEVEL
DC REM
LO HI
HI/LO
*USS
L+R (or L+L)
IN L IN R
INPUT
GAIN
MAXMIN
5k
50
Hz
24 dB
SUB
OUT
BOOST
+80
dB
45 Hz
PHASE
1800
Deg.
INPUT SEL
L+R
MONO L
R (or L)
R L
SUBSONIC
ONOFF
25 Hz
24 dB
OFF +6dB
0 dB
REMOTE CONTROL
HRC BM
(optional)
SUB Volume
VCA
8
BLOCK DIAGRAMS