Hifonics XXV XXV Colossus User Manual page 10

2 way active, or bi-amplified system with mono bass
This application shows how easily a 2 way active system can be implemented
using a 4 channel amplifier.
Channels 1 and 2 will be used for highs, and channels 3 and 4 for mono bass.
Interconnect cable checklist:
We need to feed the same signal to both sets of channels, so you must use 2
Y-adapters, one to feed the LEFT signal to channels 1 and 3, and the right signal
to channels 2 and 4, as shown.
Mono bass woofer wiring:
Connect the mono speaker positive terminal to the LEFT +, and its negative
terminal to RIGHT -.
CROSSOVER Switch setting checklist:
1 / 2 CROSSOVER: HPF
3 / 4 CROSSOVER: LP/BP
Crossover frequency control checklist:
Channels 1 / 2:
HI PASS: 100 Hz
LOW PASS: N/A
LEFT TO
CHANNELS
1 AND 3
RIGHT TO
CHANNELS
2 AND 4
2 way active, or bi-amplified system with mono bass, and faded highs/lows
Here we present a variation of the previous system. Since this is a 2 way
system, we can use the front outputs from a head unit to drive the highs, and the
rear output to drive the bass This method allows the listener to easily adjust the
relative levels of bass to highs, with the front to rear fade on the head unit.
Channels 1 and 2 will be used for highs, and channels 3 and 4 for mono bass.
Minimum final loudspeaker impedances:
2 Ohms per channel in stereo mode.
4 Ohms mono bridged.
FULL RANGE
STEREO LINE
INPUTS
8
XXV GEMINI 4 CHANNEL AMPLIFIER APPLICATIONS
CH4 BALANCED PHASE
MONO MIX CH1 CH3 INPUT LEVEL LEFT
9V 0.2V 0 180
2CH 4CH
CH2 CH4
OUTPUT INPUT
9V 0.2V -10 +10dB
MODE LEVEL CUT/BOOST BANDWIDTH
CH4 BALANCED PHASE
MONO MIX CH1 CH3 INPUT LEVEL LEFT
9V 0.2V 0 180
2CH 4CH
CH2 CH4
OUTPUT INPUT 9V 0.2V -10 +10dB
LEVEL CUT/BOOST BANDWIDTH
MODE
Channels 3 / 4:
HI PASS (subsonic): 20 Hz
LOW PASS: 100 Hz
Please note that these frequency points are suggestions only. Refer to the
loudspeaker manufacturer specifications and the section "Setting up systems
after installation for best performance"
Level control checklist:
Refer to the section "Setting up systems after installation for best performance"
Minimum final loudspeaker impedances:
2 Ohms per channel in stereo mode.
4 Ohms mono bridged.
CH 1&2
PARAMETRIC EQ
AMPLIFIER
CH1 & 2
CUT/BOOST HIGH PASS ROUTING
RIGHT 0dB BANDWIDTH FREQ FREQ HP CH3&4
X1 X10 X1 X10
FULL RANGE CH1&2
0 180 -10 +10dB 40 400Hz
FULL RANGE
CH3 & 4
X1 X10
X1 X10
MO ST LP/BP HP
40 400Hz 15 150Hz 40 400Hz LP/BP
REMOTE
FREQ SUBSONIC FREQ CROSSOVER
PARAMETRIC EQ
-6dB XXVR-1
DIAGNOSTICS CLIP
GREEN: POWER GREEN: PRE-CLIP
AMBER: THERMAL AMBER: SOFT CLIP
RED: SHORT RED: HARD CLIP
-20dB 0dB
BASS REMOTE
Interconnect cable checklist:
Use good quality RCA leads to connect the inputs of the amplifier to the source
as shown.
Follow the instructions as per the previous system for switch and crossover
settings.
CH 1&2
PARAMETRIC EQ
AMPLIFIER
CH1 & 2
CUT/BOOST HIGH PASS ROUTING
RIGHT 0dB BANDWIDTH FREQ FREQ HP CH3&4
X1 X10 X1 X10
FULL RANGE CH1&2
0 180 -10 +10dB 40 400Hz
FULL RANGE
CH3 & 4
X1 X10
X1 X10
MO ST LP/BP HP
HFR-G1
40 400Hz 15 150Hz 40 400Hz LP/BP
REMOTE
FREQ SUBSONIC FREQ CROSSOVER
PARAMETRIC EQ
-6dB
XXVR-1
DIAGNOSTICS CLIP
GREEN: POWER GREEN: PRE-CLIP
AMBER: THERMAL AMBER: SOFT CLIP
-20dB 0dB RED: SHORT RED: HARD CLIP
BASS REMOTE
SPEAKER OUTPUT
DIAGNOSTICS
FUSE
RED - SHORT CIRCUIT BRIDGED
AMBER - THERMAL + - + -
CH1 CH2
RED - CLIP RED - CLIP
AMBER - NEAR CLIP AMBER - NEAR CLIP
GREEN - PRE-CLIP GREEN - PRE-CLIP
CH1 & 2 CH3 & 4
+ - + -
HFR-G1 CH3 CH4
BRIDGED
SPEAKER OUTPUT
DIAGNOSTICS
FUSE
RED - SHORT CIRCUIT BRIDGED
AMBER - THERMAL + - + -
CH1 CH2
RED - CLIP RED - CLIP
AMBER - NEAR CLIP AMBER - NEAR CLIP
GREEN - PRE-CLIP GREEN - PRE-CLIP
CH1 & 2 CH3 & 4
+ - + -
CH3 CH4
BRIDGED
+12V REM GND
POWER INPUT
CHASSIS GROUND
REMOTE TURN-ON
TO BATTERY + 12V VIA FUSE
+12V REM GND
POWER INPUT
CHASSIS GROUND
REMOTE TURN-ON
TO BATTERY + 12V VIA FUSE