Use an RCA cable (not included) to connect your receiver's Sub out or LFE out jack to the LFE/XOVER BYPASS jack on the SA1 as shown above.
In this configuration, the SA1's internal lowpass filter and front panel lowpass control knob will be bypassed. The subwoofer crossover point will be set
by the Dolby Digital or Pro Logic processor.
WARNING:
To reduce the risk of electric shock and speaker damage, always switch off the
SA1 amplifier when making connections to your system, amplifier or subwoofer.