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EF1210 U
SER
M
ANUAL
40 http://www.aspi.com Copyright © 1999, All Rights Reserved
Adjusting Volume in
Zones
The volume in the zones can be checked and adjusted using the following commands
from the RS-232 command set:
During normal operation, the zone output levels will be set 6 dB lower than the
selected level (amplifier acoustic gain limit) to allow the EF1210 L
EVEL
A
DJUST
con-
trols to apply a volume adjustment to the room audio signal in the range +6 dB to -12
dB.
Adjusting Playback
Levels
The A
UX
I
N
input and R
EC
output signals are preset to -10 dBV signal levels. The
level of the A
UX
I
N
signal may be adjusted during normal operation to compensate for
low audio level from an external playback device. The playback level can be adjusted
using the following commands from the RS-232 command set:
Muting
The channels on the EF1210 can be muted using the RS-232 command set. Using the
MUTEI command will mute the outgoing audio on L
INE
O
UTPUT
of the channel that
is muted. The M
UTE
A
LL
LED will light only when all channels are muted.
Command Description Effects
GAINZ
c
x Set zone c output
gain to x.
Zone c output gain set to x dB; yellow
LED on AEC c will light.
c is either A or B.
x ranges from 0 to 20 dB.
GAINZ
c
? Request zone c out-
put gain.
Current gain for zone c is returned to
remote control device.
Note.
See the “GAINZc - set ZONE output gain on output c” on page 68
for a more detailed description of the zone output gain x.
Command Description Effects
GAINPx Set playback input
gain to x.
Playback input gain set to x dB.
x ranges from 0 to 15 dB.
The default is 8 dB.
GAINP? Request playback
input gain.
Current gain for playback is returned
to remote control device.
Note.
See the “GAINP - set PLAYBACK input gain (on AUX IN input)”
on page 65 for a more detailed description of the playback input
gain x.
Command Description Effects
MUTEI
n
Mute channel n Outgoing audio on channel n is muted.
MUTEI* Mute all channels All channels are muted; the M
UTE
A
LL
LED lights.
42


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