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Crossfire C3 704

400W C3 Series 4-Channel Class A/B Car Amplifier

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C3 Series 4 Channel Car Amplifier • 70W RMS @ 4 Ohm x 4 Channels • 100W RMS @ 2 Ohm x 4 Channels • 160W RMS @ 4 Ohm Bridged x 2 Channels • Variable Low-Pass Crossover • Variable High-Pass Crossover • Variable Bass Boost

Learn more about the c3704

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Product Highlights


C3 Series 4 Channel Car Amplifier • 70W RMS @ 4 Ohm x 4 Channels • 100W RMS @ 2 Ohm x 4 Channels • 160W RMS @ 4 Ohm Bridged x 2 Channels • Variable Low-Pass Crossover • Variable High-Pass Crossover • Variable Bass Boost

Description


Saving Space with Crossfire's C3 Series Amplifiers

Just bought four brand new after market speakers that require an amplifier but are limited to space? The C3 704 by Crossfire is the perfect solution to your dilemma. The amplifier is rated at 70 watts RMS @ 4 ohms x 4 channels, 100 watts RMS @ 2 ohms x 4 channels, and 160 watts RMS x 2 channels at the bridged impedance of 4 ohms. Gain complete control of your car audio system with the variable low-pass and high-pass crossover features. If you don't have an after market radio, no need to worry the high-level speaker inputs make this amplifier compatible with any system. So if you are looking for a dependable amplifier, with sufficient power and that can be mounted underneath your seat, then the C3 704 is the best option for you.

  • C3 Series 4 Channel Class A/B Car Amplifier
  • RMS Power Rating(13.8V):
    • 4 ohm: 70 watts x 4 chan.
    • 2 ohm: 100 watts x 4 chan.
    • Bridged, 4 ohm: 160 watts x 2 chan.
  • MOSFET power supply
  • 2 Ohm stable stereo / 4 ohm mono
  • Variable Bass Boost (0 to +12 dB)
  • 4/3/2 Channel operation
  • 2-Way System Protection circuitry
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Heavy duty heatsink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 0.15V-8V
  • Variable high-pass filter (50-500 Hz)
  • Variable low-pass filter (50-500 Hz)
  • Frequency response: 20-20,000 Hz)
  • Dimensions: 14-7/16"L x 7-1/8"W x 1-13/16"H
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
70 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
160 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
2 ohms
THD at Rated RMS Power
0.08%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
50 - 500 Hz
Low-Pass Crossover Frequency
50 - 500 Hz
Signal-to-Noise Ratio
90 dB
Channel Separation
50 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

C3 704

Weight:

6.14lbs

Internal SKU:

c3704

Internal Product ID:

36210

Product and How-to Videos


Customer Ratings & Reviews


Crossfire C3 704 thumbnail image

5 star
50%
4 star
0%
3 star
0%
2 star
50%
1 star
0%



Durability
3.5
Value
3
Features
4
Design
3.5
Usability
4

Customer Reviews

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Good product but is malfuctioning

I bought this product when it was on discount at Sonic Electronix. The professional who installed the amplifier in my car told me that one of the 4 channels is not working because it was malfuction from the factory. Unfortunately the cost to return it to get fixed, is better to buy a new one. Anyway i took it to a technician to fix it. Currently i have 4 speakers connected to 3 channels and they sound ok. Wouldnt recommend it.

By Mar on June 20, 2012

7 found this helpful


Untouchable value and quality!

Crossfire's quality has always been top notch. The fact that they are selling an amazing amp like the 704/501 for so little is just ridiculous. I am using the 501 to power a single dual voice-coil (2ohm+2ohm) Alpine Type R at 1ohm. Most amps can't even imagine being stable at 1ohm (almost all of em would overheat and fry). The 704 makes my mids and highs sound amazing. I won't need to upgrade for quite some time, but rest assured that when I do, I'll go right back to Crossfire for their new version of these two amps!

By Mo on August 25, 2013

3 found this helpful




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