Amplifier Configuration Controls
Each zone has a set of controls you must use to configure the sound for the speakers connected to that zone.
Dial or
Switch
Function
LEVEL
Adjusts the input signal level for the zone (
Adjusting the Level for a Zone, page 13
).
FULL
Sets a full-range filter on the zone.
Allows all frequencies. This is usually used when full-range speakers are connected to the zone,
and no subwoofer is present.
LPF
Sets a low-pass filter on the zone.
Filters out mid to high frequencies that only full-range speakers should produce. This is usually
used when a subwoofer is connected to the zone.
HPF
Sets a high-pass filter on the zone.
Filters out low frequencies that only subwoofers should produce. This is usually used when
smaller speakers are connected to the zone.
FREQ
Adjusts the crossover frequency for the zone
You should adjust this based on the LPF/HPF setting:
• When LPF is selected, all frequencies below the FREQ setting are passed to the subwoofer
connected to the zone.
• When HPF is selected, all frequencies above the FREQ setting are passed to the speakers
connected to the zone.
BASS
BOOST
Adjusts the gain on the 45 Hz level.
This control is available on ZONE 2 and on ZONE 4 only.
This setting should be adjusted only when you connect a subwoofer or full range speakers
capable of low frequencies to the zone.
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