Basic Controls - SPL Crossover Kurzanleitung

Crossover – Quickstart
LOW Section Setup
Choose the LOW crossover frequency (Linkwitz Riley low pass filter) with the
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LOW X-OVER switch: 50, 60, 70, 85, 100 or 120Hz. The roll-off is 24 dB/octave.
Use the PHASE switch and the PHASE control to shift the LOW signal phase from
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-180° to +180° for phase aligning subwoofer and main speaker positions.
If you switch the LOW Mono/Stereo Switch to Mono – both LOW Outputs L and
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R feed a LOW mono signal.
The output level of the subwoofer can be varied from -10dB to +10dB with the
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LOW Level control.
MID-HI Section Setup
Choose a MID-HI crossover frequency (Linkwitz Riley high pass filter) with the
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MID-HI X-OVER switch: 50, 60, 70, 85, 100 or 120Hz.
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Select the roll-off with the ROLL-OFF Switch: 12 or 24 dB/octave.
Normally the crossover frequency is equal to the LOW setting.
The MID-HI crossover can be disabled with the MID-HI X-OVER On/Off switch in
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case the top speakers shall operate full range.

Basic Controls

The Crossover is equiped with a 20Hz low cut filter. If on (20Hz) the input signal
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is filtered below 20Hz by 12dB/octave for both frequency ranges – LOW and
MID-HI.
With the VU meter sensitivity switch you can lower the displayed VU levels by 6
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or 12dB in case you are running hot signal levels.
You can select the VU meter source: the LOW frequency range, the MID-HI
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frequency range or the input signal.
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LOW X-OVER Switch
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LOW PHASE Control
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Crossover
PHASE ROLL-OFF | dB
Var Var
12 24
-180° 0°
Off
OUT
X-OVER
Mono Stereo
Off On
LOW MID-HI
VOLTAiR
120V DC Audio Rail
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LOW Mono/Stereo Switch
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LOW PHASE Switch
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MID-HI X-OVER Switch
Crossover
PHASE ROLL-OFF | dB
Var Var
12 24
-180° 0°
Off
OUT X-OVER
Mono Stereo Off On
LOW MID-HI
VOLTAiR
120V DC Audio Rail
24
MID-HI ROLL OFF Switch
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MID-HI X-OVER On/Off Switch
Crossover – Quickstart
LOW Level Control
ON
VU VU
6 Input
LOW CUT
Off 20 Hz 0 12 LOW MID-HI
Active Crossover
ON
VU VU
LOW CUT 6 Input
Off 20 Hz 0 12 LOW MID-HI
Active Crossover
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VU Meter Input Switch
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VU Meter Sensitivity
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LOW CUT
EN
DE
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