FEATURES & SETUP-
REAR PANEL SWITCHES:
MODE
MODE-
This switch selects between
BI-AMP
,
2 CH
, or
BRIDGE
modes of operation.
The indicator LED’s above the switch confirm the selection.
BRIDGE
: This mode combines both output channels into one output. This
mode is for driving a single, high-powered load with twice the “normal”
voltage swing. This results in about 4 times the peak power and about
three times the sustained power of a single channel. This mode uses the
input, gain control, subaudio filter, and clip limiter of
CH 1
;
CH 2
's filter
and clip limiter have no effect. The yellow
BRIDGE
LED on the front panel
indicates when the amp is in
BRIDGE
mode.
When to use BRIDGE mode:
Use
BRIDGE
mode when you need to
deliver the power of two channels to a single 8 or 4 ohm load, such as a
subwoofer. Do not use less than 4 ohm loads in
BRIDGE
mode.
2 CH
: This is the “normal” mode used for stereo and parallel input
configuration. Each channel carries full-frequency signals (no crossover)
and is independently controlled (gain, processing, output connection).
BI-AMP:
This puts the amplifier into a “crossover” mode.
CH 1
receives
the low frequencies and
CH 2
is receives the high frequencies. The
crossover is a 4
th
order Linkwitz-Riley. The crossover frequency and low-
frequency alignment delay are “programmed” with SIP (single in-line
package) resistor networks . These small plug-in networks are installed
from the side of the amplifier and plug into J4 and J5. WARNING: Do not
insert or remove networks with the power turned on. See the SIP Network
Selection and Installation section for more information. The
HF ATTEN
,
HORN BOOST
, and
SUBAUDIO FILTER
controls are active in
BI-AMP
mode. The blue
BI-AMP
LED on the front panel indicates when the amp
is in bi-amp mode.
When to use BI-AMP mode
: Use
BI-AMP
when you need to split the
high frequency and low frequency signals to power separate driver types.
BRIDGE MODE OUTPUT CONNECTION-
Note that speaker connection for bridge mono mode is different than other modes.
See section on Connections: Outputs for proper bridge mode output connections.
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