User Guide

RCF spa ART 9-AX Reference Guide 9
4. CROSSOVER
A high-performance Crossover has been implemented on the ART 9-AX
engine, that allows an optimal match with selected RCF subwoofer
models.
The MIX OUT connector is reassigned to drive an external subwoofer
cabinet.
The preset list will grow in time when new subwoofer models will be
introduced. Two User locations are also available to save custom
crossover settings. RCF presets are read-only.
The available crossover parameters are:
- SUB Level Trim [-12.0 dB…. + 12.0 dB], level offset between TOP and SUB output
- SUB Delay [-10 ms…..+10 ms], delay offset between TOP and SUB output
- SUB Polarity
- LPF Enable, normally ON. You can turn the LPF off when the external SUB already has
internal filtering.
- Crossover Frequenc: OFF, 20 Hz…. 160 Hz
Additional, non-editable filtering is inserted when an RCF model is selected, for optimal TOP/SUB
matching.
For USER 1 and USER 2, SAVE is enabled, while
other presets are read-only.
Internal, read-only presets have been created assuming specific subwoofer configurations; please follow the table below to correctly configure
the subwoofer unit connected to MIX OUT.
ART 910-AX
Preset Name
Subwoofer
suggested
settings
01
USER 1
----
02
USER 2
----
03
SUB 705
-
AS II
XOVER = 80 Hz, Polarity = 180°
04
SUB 708
-
AS II
XOVER = 80 Hz, Polarity = 180°
05
SUB 905
-
AS II
Preset = L3, Polarity = 0°
ART 912
-
AX
Preset Name
Subwoofer suggested settings
01
USER 1
----
02
USER 2
----
03
SUB 708
-
AS II
XOVER = 80 Hz, Polarity = 180°
04
SUB 905
-
AS II
Preset = L2, Polarity = 0°
05
SUB 8003
-
AS II
Preset = L3, Polarity = 0°
ART 915
-
AX
Preset Name
Subwoofer suggested settings
01
USER 1
----
02
USER 2
----
03
SUB 708
-
AS II
XOVER = 80 Hz, Polarity = 180°
04
SUB 8003
-
AS II
Preset = L4, Polarity = 0°
05 SUB 8004-AS II
XOVER = 90 Hz, Polarity = 0°
Delay = 0 ms, all switch released
Please notice that for SUB 705-AS II and SUB 708-AS II the required
setup is with all switches released (see image below); on other
models, specific values should be entered on the display.
XOVER = 80 Hz
(switch released)
PHASE = 180°
(switch released)
The preset list will be expanded when new RCF subwoofer models
will be introduced.