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OUTPUT APPLICATION SWITCH
The
OUTPUT APPLICATION
switch should
be configured before you turn on the amplifier.
This switch allows you to choose between three
different configurations:
LIMITER ON (TYPICAL)
. This is the
normal configuration: full-bandwidth audio
with protective limiting.
LIMITER OFF
is also full bandwidth
audio, but without protective limiting.
LOW OUT (SUBWOOFER)
mode, with
built-in low-pass filter, but no protective
limiting.
LIMITER ON, LIMITER OFF
The
LIMITER
is not designed
to alter your sound — it’s
just there to protect your
speakers from the effects of
clipping. Its effect is virtually
transparent, meaning you
probably won’t even notice any audible difference.
We recommend that you leave it engaged, hence
the
TYPICAL
label below the
ON
setting.
If you’re working at quiet levels all the time,
or you’ve already placed a compressor/limiter
in the signal path, or if you just hate compression,
you can leave the
LIMITER
off.
The
LIMITER
works independently on each
channel. It senses when the amplifier channel
is about to be overdriven and attenuates the
overall level just enough to keep the signal
from clipping. Clipping occurs when the output
voltage no longer linearly follows the input
voltage and simply stops. This causes a sine
wave to “square off,” and the average power
going into the speaker is roughly double that
of a sine wave. Square waves sound awful, and
could possibly damage your tweeters and your
reputation.
The
LIMITER
is especially handy when
you’re working with loud output levels. Having
the signal spikes (kick drum, for instance)
attenuated a bit can actually increase the
apparent loudness of the overall mix without
diminishing the “power” behind the spikes.
Be Forewarned: With the
LIMITER
engaged,
you can still overdrive the amplifier into clipping
and cause distortion. It just takes a stronger
signal to do it. So even with the
LIMITER
turned on, you should still pay close attention
to the front panel
OL
LEDs , especially if
you are hearing distortion or your speakers
start smoking (which is bad for their health).
STEREO
TYPICAL
1
CHANNEL
S
U
B
W
O
O
F
E
R
TYPICAL
35 Hz
CHANNEL
2
ON
TYPICAL
IN
IN
LOW CUT FILTER
INPUT
INPUT
CROSSOVER
SWITCHED OUTPUT
SWITCHED OUTPUT
BALANCED
OR
UNBALANCED
170 Hz
100 Hz
OFF
STAGE
MONITOR
90Hz
LOW
OUT
HIGH
OUT
THRU
LOW
OUT
HIGH
OUT
THRU
120Hz
60Hz
CROSSOVER
90Hz
120Hz
60Hz
AMP MODE
B
R
ID
G
E
D
M
O
N
O
OUTPUT APPLICATION
BALANCED
OR
UNBALANCED
LIMITER
(CH1 & CH2)
LOW OUT
(SUB WOOFER)
OFF
CH's
SUMMED
FULL
RANGE
LOW CUT FILTER
170 Hz
100 Hz
OFF
STAGE
MONITOR
S
U
B
W
O
O
F
E
R
TYPICAL
35 Hz
THRU
THRU