Boss CXX502 User Manual page 6

Low Level Input Wiring
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
MonoBlock Amplifier
CXXM1250
CXXM1800,CXXM2200
Ol
CHAOS EXXTREME II MOSFET Amplifier User's Manual - page 8
High Level Input Wiring
The high level input(s) should only be used when your head unit lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
2-Channel Amplifiers
CXX502, CXX1002, CXX1602, CXX2002, and CXX2502
Remote
Subwoofer Control
To Speaker Terminals
of head unit
4-Channel Amplifiers
CXX1204, CXX1604, CXX2004 and CXX2404
Remote
Subwoofer Control
CHAOS EXXTREME II MOSFET Amplifier User's Manual - page 9