User manual

F1222 (1.1E)
Controls on 1222 controller module
GR LO
ISP
GR HI
OV LO
OV HI
CUT
HFC
1220
MUTE
1222
0
+3-3
0
-6
-12
-18
dB
HI dB
ID
1222 controller rear panel
OUTPUT 2
OUTPUT 1
1220
PIN ASSIGNMENT
A LOW OUT +
B LOW OUT -
C SPEAKER ID
D SPEAKER ID
E SENSE DRIVE +
F SENSE DRIVE -
G HIGH OUT +
H HIGH OUT -
1222
1222 controller module switches
Standard setting
With no configuration switches selected, the connected 1222 loud-
speakers will operate as a main, front-of-house system without
subwoofer support.
CUT switch and indicator
With the CUT switch selected, the frequency and phase response of
1222 loudspeakers is modified for operation with d&b B1-SUB,
B2-SUB or E18-SUB active subwoofer systems.
HFC switch and indicator
HFC stands for "high frequency correction". With the HFC switch
selected, the frequency range above 10 kHz is lifted.
1220 switch and indicator
The 1220 switch configures the controller module to drive F1220
loudspeakers. This setting is identical to the basic setting of the
1220 controller module.
HI level control
The HI level control has a +/3 dB range and cuts or boosts HF
response above 1 kHz. For a linear frequency response, the HI
level control should be set to its 0 dB position.
Recommended subwoofer level control settings
With the 1222-CO level control set to 0 dB, subwoofer level
controls should be set to the following values:
B1-SUB: 0 dB
B2-SUB: approx. 8 dB
1 x E18-SUB: +3 dB
2 x E18-SUB: 3 dB
Controller module rear panel
Two 8-pin, identically wired, CA-COM output sockets are fitted to
the module rear panel. To avoid a potential shock hazard, if a
single F1222 loudspeaker is connected, the pins on the unused
socket are internally isolated from the mainframe power amplifier
outputs.
Internal speaker wiring
When replacing the 12 driver, ensure that the red lead is
connected to the black terminal on the driver, and vice versa. The
HF driver is wired normally - red lead to the red terminal.