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22
TROUBLESHOOTING
Symptom Probable Cause Remedy
No output Source or amplifier
not turned on.
Check source or amplifier and fix
as required.
Audio input not con-
nected or no output
from source.
Check RCA connection and
signal integrity, fix or replace as
required.
Bi-amp/parallel switch
set incorrectly for ap-
plication.
Set Bi-amp/parallel switch to
correct setting (see Crossover
connections and input switch set-
ting, Bi-amplified connections to
crossover, or Bi-wire connections
to crossover).
Protection circuit
activated.
Turn down volume, protection
circuit will automatically reset.
Speaker wires not
connected.
Check speaker wires and fix or
replace as required.
Audio cycles on
and off
Speaker damaged. Check system with known work-
ing speaker and fix or replace as
required
Thermal protection
engaged.
Check that amplifier has ad-
equate ventilation, check speaker
impedance load
Loose or poor audio
connections.
Check RCA power and speaker
connections and fix or replace as
required.
Distorted output Preamp volume set
to high exceeding
maximum capability of
amplifier.
Check volume or preamp and
adjust appropriately.
Impedance load to
amplifier too low.
Check speaker impedance load, if
below 1 ohm rewire the speakers
to achieve a higher impedance.
Bi-amp/parallel switch
set incorrectly for ap-
plication.
Set Bi-amp/parallel switch to
correct setting (see Crossover
connections and input switch set-
ting, Bi-amplified connections to
crossover, or Bi-wire connections
to crossover).
Shorted speaker
wires.
Check speaker wire connections
and fix or replace as needed.