Controls And Their Function - JBL ARC SUB 8 Service Manual

Powered Subwoofer
1. Output Level - The Output Level adjustment
determines volume level strength.
2. Crossover Frequency - The Crossover Frequency
adjustment determines the highest frequency the
ARC SUB 8 will reproduce. It allows a seamless
transition from the subwoofer to the satellite
speakers.
3. On (LED) - This LED will light green when the unit is
plugged in and is receiving signal. When in
standby mode the LED is red.

CONTROLS AND THEIR FUNCTION

4. Low Level Input - These left and right Line Level
Inputs are normally used when the
receiver/processor has line-level pre-amp out
or subwoofer out jacks.
5. High Level Inputs - These High Level Inputs are for
receivers that do not have line-level pre-amp out
or subwoofer out jacks. When a pair of main or
satellite speakers are attached to the OUTPUT
terminals, frequencies below 180 Hz are attenuated
by the high-pass filter.
ARC SUB 8
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