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-inlow-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).

1CHANNEL

INPUT

 

 

 

 

 

CROSSOVER

 

BALANCED

LOW CUT FILTER

 

 

 

OR

 

 

 

TYPICAL

60Hz

90Hz

120Hz

UNBALANCED

 

 

 

 

 

 

 

35 Hz

 

 

 

 

 

 

R

STAGE

 

 

 

 

O

F

E

MONITOR

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

W

 

 

 

 

 

 

B100 Hz

U

S

OFF

170 Hz

 

AMP MODE

STEREO

MONO BRIDGED

TYPICAL

 

 

CH's

 

SUMMED

OUTPUT APPLICATION

 

FULL

LOW OUT

 

RANGE

(SUB WOOFER)

CROSSOVER

60Hz

90Hz

120Hz

 

 

 

 

CHANNEL 2

 

 

 

 

INPUT

LOW CUT FILTER

BALANCED

 

 

TYPICAL

OR

 

 

UNBALANCED

 

 

 

35 Hz

 

 

 

R

STAGE

 

O

F

E

MONITOR

 

 

 

 

 

O

 

 

 

 

W

 

 

100 Hz

 

U

 

 

B

 

 

 

 

S

 

 

 

 

OFF

170 Hz

 

THRU

THRU LOW HIGH OUT OUT

IN

SWITCHED OUTPUT

OFF

ON

TYPICAL

LIMITER

(CH1 & CH2)

THRU

HIGH LOW THRU

OUT OUT

IN

SWITCHED OUTPUT

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