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C7 Series

Crossfire C7 Series Owner's manual

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  • What are the possible causes of no output from the amplifier?
    Why does the amplifier shut down and enter protection mode?
    What is the minimum working impedance for the C7-2K, C7-4K, and C7-2000.4 amplifiers?
    What is the voltage protection range for the C7-2K, C7-4K, and C7-2000.4 amplifiers?
    How can I improve poor bass response?
C7-2K
C7-2000.4
C7-4K
All features are subject to change in the continuing eort to improve the products without notice.
Rated Power Output ( @ 14.4V )
- RMS Power, 1 Ohm Mono
- RMS Power, 2 Ohm Mono
- RMS Power, 4 Ohm Mono
Low Pass Frequency Crossover
Subsonic Filter
Bass Boost @ 45Hz
Phase Shift Control
Frequency Response
Input Sensitivity
Signal/Noise Ratio
T.H.D @ 4 Ohm
Eciency @ 4 Ohm
Recommended Fuse Rating
Operationg Voltage
Dimensions
9.29(W ) x 2.48(H )
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C7-2K
2,000W x 1CH
1,200W x 1CH
800W x 1CH
35Hz ~ 250Hz
10Hz ~ 50Hz
0 ~ 9dB
0 ~ 180 Degree
15Hz ~ 270Hz ( +/- 1dB )
0.2V ~ 6V ( +/- 5% )
90dB
< 0.1%
86%
200A ( External Type Fuse )
8.5V ~ 16V
19.02 (L ) Inches
C7-4K
4,000W x 1CH
2,200W x 1CH
1,200W x 1CH
35Hz ~ 250Hz
10Hz ~ 50Hz
0 ~ 9dB
0 ~ 180 Degree
15Hz ~ 270Hz ( +/- 1dB )
0.2V ~ 6V ( +/- 5% )
90dB
< 0.1%
86%
400A ( External Type Fuse )
8.5V ~ 16V
23.35 (L ) Inches
* Digital Class-D Strappable Mono Block Amplier
*
Dual MOS-FET PWM Power Supply
*
Stable into 1 Ohm Mono Load
*
24 dB/oct, Variable Low Pass Filter
*
24 dB/oct, Variable Subsonic Filter
* 9 dB/oct, Variable Bass Boost
*
180 degree Variable Phase Shift
*
4 Way Protection Circuit
( Thermal, Voltage, Speaker short and DC )
*
Subwoofer Level Controller included
*
Working Voltage Range : 8.5V - 16V
All features are subject to change in the continuing eort to improve the products without notice.
Rated Power Output ( @ 14.4V )
- RMS Power, 4Ohm Bridged
- RMS Power, 2 Ohm Stereo
- RMS Power, 4 Ohm Stereo
High Pass Frequency Crossover
Low Pass Frequency Crossover
Frequency Response
Input Sensitivity
Signal/Noise Ratio
T.H.D @ 4 Ohm
Eciency @ 4 Ohm
Recommended Fuse Rating
Operationg Voltage
Dimensions
9.29(W ) x 2.48(H )
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C7-2000.4
1,000W x 2CH
500W x 4CH
300W x 4CH
20Hz ~ 4KHz
40Hz ~ 4KHz
10Hz ~ 35KHz ( +/- 1dB )
0.2V ~ 6V ( +/- 5% )
90dB
< 0.1%
85%
150A ( External Type Fuse )
8.5V ~ 16V
14.69 (L ) Inches
* Digital 4channel Full Range Amplier
*
Dual MOS-FET PWM Power Supply
*
Stable into 2 Ohm Mono Load
*
12 dB/oct, Variable Low Pass Filter
*
12 dB/oct, Variable High Pass Filter
* Band Pass Capable
*
0 ga Power & Ground Terminal
*
4 Way Protection Circuit
( Thermal, Voltage, Speaker short and DC )
*
1/2Ch & 3/4Ch Clipping Indicator
*
Working Voltage Range : 8.5V - 16V
Remote Turn-On
GROUND GROUND
MASTER & SLAVE RCA CONNECTION
MASTER UNIT
SLAVE UNIT
C7-2K & C7-4K operation voltage : 8.5V to 16V
C7-2K & C7-4K Strapped minimum impedance is 2ohms.
C7-2K Strapped Fuse : 400A.
C7-4K Strapped Fuse : 800A
C7-2000.4 SPEAKER 4 WAYS CONNECTION
C7-2000.4 SPEAKER 3 WAYS CONNECTION
C7-2000.4 operation voltage : 8.5V to 16V
C7-2000.4 minimum impedance is 2ohm stereo or 4ohm mono..
C7-2000.4 fuse rate is 150A
8 - 4 ohms
C7-2K, C7-4K & C7-2000.4 have protection features to prevent any damages from misuse or faulty conditions.
If C7 ampliers sense excessive heat, short circuited speaker, DC or voltage, the protection indicator will
light and the system will be turned o. In order to check the problem, you should turn all levels down and
all power o and carefully check the installation for wiring mistakes or short.
If C7 ampliers shut down due to excessive heat, they will remain in thermal protection until ampliers reach
normal operation temperature. Before removing your ampliers, refer to the list below and follow
the suggested proceedures.
NO OUTPUT
@ Check remote turn-on voltage at amplier and headunit, when remote turn-on voltage is low
or no turn-on voltage, there is no sound.
@Check fuses at the battery side or external fuses and all wire connections
@ Check RCA Input is properly connected.
AMPLIFIER SHUT DOWN ( PROTECTION )
@ Please check POWER, GND and REMOTE wire connection and other wires properly connected.
@ When DC over 4V comes into the amplier, amplier is DC protected. Pls check whether amplier works
after removing RCA-Input. If amplier works, then check DC by checking RCA-Input.
When DC is over 4V at Input, try by replacing head-unit or source.
@ Amplier goes into the thermal protection when amplier is over-heated. Amplier will turn back
on after it cools down. Please install amplier in a better ventilated area.
@ C7-2K & C7-4K have a minimum working impedance of 1ohm as single unit. Strapped connection is 2ohm.
C7-2000.4 has a minimum working impedance of 2ohm stereo or 4ohm bridged.
@ C7-2K, C7-4K and C7-2000.4 voltage protection at low and high is 8.5V to 16V.
@ Make sure Chassis and Remote use same GROUND.
DISTORTION & NOISE
@ Please re-adjust amplier input level which is printed on endplate.
@ Make sure good ground contact of amplier or headunit.
@ Use sucientrly shielded RCA interconnects and good RCA routing.
@ Check all ground connections of all other audio equipment.
POOR BASS RESPONSE
@ Check speaker wiring and reverse polarity.
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