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HKSUB12
SYMPTOM
If you used the
Speaker-Level Inputs ¡
and there is no sound
from any of the speakers: • Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected.
If there is low (or no)
bass output:
SOLUTION
• Check that receiver/amplifier is on and a source is playing.
• Check that the HKSUB 12 is plugged into an active electrical outlet and is switched on using the Master
Power Switch ⁄.
Make sure none of the speaker wires are frayed, cut, punctured or touching other wires or terminals,
which may cause a short.
• Review proper operation of your receiver/amplifier.
• Make sure that all speakers have been correctly connected in phase, with the (+) terminal on the speaker
connected to the (+) terminal on the receiver/amplifier, and the (–) terminal on the speaker to the (–) terminal
on the receiver/amplifier.
• Check that the HKSUB 12 is plugged into an active electrical outlet and is switched on using the Master
Power Switch ⁄.
• Slowly turn the Subwoofer Level Control ‚ clockwise until you begin to hear the desired amount of bass.
• If you are using either the Line-Level Full-Range Inputs £ or the Line-Level Subwoofer (SUB)
Input ¢, make sure you have properly configured your receiver or processor to enable its subwoofer output.
• If you are using the Line-Level Full-Range Inputs £, try adjusting the crossover setting using the
Crossover Frequency Control ª.
• If you are using either the Speaker-Level Inputs ¡ or the Line-Level Full-Range Inputs £
with a full-range output from your receiver or processor, switch the High-Cut (Low-Pass) Filter Switch •
to the
position.
• Switch the Phase Switch ∞ from the
• Review proper operation of your receiver or processor and amplifier.
to the
10
harman/kardon
TROUBLESHOOTING
position, or vice versa.
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