Orion 425 HCCA - Page 15

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ORION 300 CRX
CROSSOVER
MODULE-
-Midrange Output
Low
^ req DIN Cable
Output
"Phantom Power (+15V & -15V) is supplied to alt
ORION accessory modules by the amplifier through
the DIN cable. (When ORION amplifiers are not
used, the ORION PPS 100 Phantom Power Sup¬
ply is required.)
-AUDIO
GROUND
ORION 600 EQM
EQUALIZER
or
ORION 500 PMQ
PARAMETRIC
EQUALIZER
DIN Cable
DIN Cable
DIN Cable
ORION 400 BDG
BRIDGING
MODULE
For this application, the 300 CRX 3-Way Active Crossover is used to select the high,
mid and low frequencies as described in figure 7. The low frequency stereo output is
applied to a 400 BDG Bridging Module where one channel is turned over 180 degrees
(inverted) with respect to the other channel. The inverted channel output of the amplifier
is now used as speaker ground and the non-inverted channel is used as speaker positive.
The BLACK/YELLOW and BLACK/ORANGE leads are NOT used. Two 8-ohm subwoofers are
connected in parallel. This reduces the impedance to 4 ohms, thus increasing the effective
power even more.
TWEETER AMPLIFIER
warn
TWEETERS
Yell ow (+)
Black/Yel low (-)
Orange(+)
Black/Orange (-)
MIDRANGE AMPLIFIER
MIDRANGE
^.a, ORION 250HCCA
100 Watt! RMS
I Front
48
Orange (+)
Black/Orange (-)
SUBWOFFER AMPLIFIER
SUBWOOFERS
^Hj^ORION 25° "“A
Orange (+)
Yel I ow (-)
Black/Yel I ow
Black/Orange
A single amplifier is used to drive all tweeters, another amplifier is used to drive all mid¬
range speakers, in addition to the amplifier that drives the subwoofers. This makes for a very
clean and efficient system since each speaker only has to handle those frequencies for which
it was specifically designed.
Figure 9. Three-Amplifier System Using a 300 CRX 3-Way Active Crossover to Select High, Mid and Low
Frequencies and a 400 BDG Bridging Module