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Crossfire C3 501

500W RMS Class D Monoblock C3 Series Amplifier

Discontinued
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This item has been discontinued

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Saving Space with Crossfire's C3 Series Amplifiers

Don't have much room for an amplifier but still want some bass in your car? Crossfire's C3 501 is the solution to your problems. Its small chassis design makes it mountable in locations you never would have thought to use. The rated RMS of 340 watts at 4 ohms and 500 watts @ 1 ohm, is enough power whether you are powering a C512D4 or even a BMF1214 subwoofer. The amplifier is equipped with a variable bass booss crossover and variable low-pass crossover, giving you complete control of your subwoofer frequencies. The range of power is perfect for those seeking a little bass but will also satisfy those who want more than just entry level bass in their car. Small chassis are the thing of the future and Crossfire is ready to prove they can compete at any level.

  • C3 Series Monoblock Class D Car Amplifier
  • RMS Power Rating(13.8V):
    • 4 ohms: 200 watts x 1 chan.
    • 2 ohms: 340 watts x 1 chan.
    • 1 ohm: 500 watts x 1 chan.
  • MOSFET power supply
  • SMD dedicated audio chip devices
  • Variable Bass Boost (0 to +9 dB)
  • Mono channel operation
  • 2-Way System Protection circuitry
  • Heavy duty heatsink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 0.1V-2V
  • Variable low-pass filter (40-180 Hz)
  • Dimensions: 10"L x 4-13/16"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.
  • Optional bass knob: C3R
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
200 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
340 watts x 1 channels
RMS Power @ 1 ohm
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 1 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
500 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
1 - Mono
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

500 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
8 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
1 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

40 - 180 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
85 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 9 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Optional (Accessory required and sold separately)
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

No
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
89%
4 Star
0%
3 Star
11%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.3
Value
4.6
Features
4.3
Design
4.6
Usability
4.8

Paul

Ca

Overall
Durability
Value
Features
Design
Usability

Great product

November 18, 2012

I have this amp powering 1 dc audio level 2 m2 running at 1ohm and this amp does not get hot. Would be nice if crossfire would add a subsonic filter

0 of 0 found this helpful

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Brick60

Arbuckle Ca

Overall
Durability
Value
Features
Design
Usability

It's ok

October 10, 2012

It wasn't for me. I needed something that was going to make some real deep bass. If u just want to amp up your music then this would be the amp to get. But not if you need some car rattling bass.

0 of 0 found this helpful

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Josh

Salisbury, MD

Overall
Durability
Value
Features
Design
Usability

great amp

October 8, 2012

This amp is amazingly powerful, pushes the subs i have (2 Rockford Fosgate R2D4-12's) at 250RMS per sub at 2ohms wired up to 4 at the subs. It has a crazy amount of sustained power. This amp is sleek and EXTREMELY small for the amount of power it puts out. I have even placed in the top 10 at audio comps with this amp alone. Must buy if its fits for your subs. I have had it for 6 months, and not 1 second of hesitation from this amp, and I dont take it easy on my system.

0 of 0 found this helpful

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Kina

Tampa, FL

Overall
Durability
Value
Features
Design
Usability

WOAH!!

January 9, 2012

Bought this as part of a bass package on the site and for it to be so compact, it makes my rockford fosgate 12" subs BANG! Would recommend!!

0 of 0 found this helpful

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Trent

Jennings, OK

Overall
Durability
Value
Features
Design
Usability

wow

September 6, 2011

This thing really does the job, I opened it up an had my doubts but it makes my one of 12 pound an when I get my box tomorrow it should make both my 12's pound

0 of 0 found this helpful

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nate

Canada

Overall
Durability
Value
Features
Design
Usability

great amp

August 29, 2011

pros: powers my re audio sex d2 wired at 1 ohm without overheating or distortion and is very small for its power. cons: have to remove sides of the amp to access power and speaker connections

0 of 0 found this helpful

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Matt

Great Falls, MT

Overall
Durability
Value
Features
Design
Usability

RE audio

July 25, 2011

Sick amp when i opened up the box i wasnt sure the amp would push enough considering it is the size of a small note book but it pounds HARD!

0 of 0 found this helpful

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ANDY

LA, CALIFORNIA

Overall
Durability
Value
Features
Design
Usability

BUY THIS!

June 14, 2011

Great amp, doesn't get hot and makes my W6 pound

0 of 0 found this helpful

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NoizyBass

Whittier, CA

Overall
Durability
Value
Features
Design
Usability

Holy S***!!!!!

June 10, 2011

Damn! For an amp this size to pound as loud as it does is crazy! Its only a 500 watt amp but I have it pushing 2 12" CVR woofers (400 RMS a piece) so hard I had to turn the gain down cause I thought I might blow them up! Excellent buy!

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT82 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

Your Price $49.99

Stinger SK4681 8-Gauge Wiring Kit

You only get great sound when you use great wire. This Stinger kit will do the trick!

Your Price $39.99

Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects

Your Price $17.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

Kicker KI24 K-Series RCA Audio Interconnect Cable

4 Meters (13 ft.) 2-Channel K-Series RCA Audio Interconnect Cable

Your Price $16.95

NVX XIV25 V-Series 2-Channel RCA Cable

16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $11.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

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Product Summary

Manufacturer

Model Number

C3 501

UPC

807568100230

Weight

3.66lbs

Internal SKU

c3501

Internal Product ID

36208

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Crossfire C3 501

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