RSA-500 - Front Panel Controls

1. Lowpass Crossover
The Lowpass Crossover control allows you to select the proper
frequency at which your subwoofer system blends with your
main speakers. It is adjustable from 40-120Hz. You should set
this control to the approximate low-frequency limit of your main
left and right speakers.

2. Level Control
The Level control is the volume setting for the amplifier. It is used
in conjunction with the subwoofer output level control on your
preamplifier or receiver. It is used to adjust the overall output
level of your subwoofer system.