Crossfire C510D4 Subwoofers + FREE RE Audio XTX1500.1 Amplifier

Pair of Crossfire 10" C5 Series Subwoofers + <strong>FREE</strong> RE Audio XTX Class D Monoblock Amplifier

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Pair of 10" Dual 4 Ohm C5 Series Subwoofers • 1200W MAX • 600W RMS • XTX Series Monoblock Full Range Digital Car Amplifier; MOSFET Power Supply • Wired Remote Included

Learn more about the 2-c510d4_xtx15001

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This item has been discontinued

Product Highlights

Pair of 10" Dual 4 Ohm C5 Series Subwoofers • 1200W MAX • 600W RMS • XTX Series Monoblock Full Range Digital Car Amplifier; MOSFET Power Supply • Wired Remote Included


Buy Two Crossfire C510D4 Subwoofers, get the RE Audio XTX1500.1 FREE!

The best things in life are free, and that is exactly what you will be receiving with this bass bundle. By purchasing two Crossfire C510D4 10" subwoofers, Sonic Electronix will include a free RE Audio XTX1500.1 monoblock amplifier. If you are planning on purchasing two subwoofers and a compatible amplifier, why not get the amplifier for free? This Sonic exclusive bundle is the perfect way to get that quality Crossfire sound without breaking the bank.

Crossfire and RE Audio Bass Bundle

This Sonic Electronix Exclusive Bass Bundle showcases a RE Audio XTX1500.1 amplifier along with a pair of 10" C5 Series, Crossfire subwoofers. This excellent bass package pushes 600 watts of clean, continuous RMS power. The Crossfire Subwoofers each have Dual 4 Ohm Voice Coils; meant to be wired in parallel/parallel, to a final impedance of 1 Ohm. For more information regarding subwoofer wiring, please check out our Subwoofer Wiring Diagram.

These Crossfire C510D4 10" C5 series subwoofers require 600 watts of RMS power. The included RE Audio XTX1500.1 amplifier will compliment this required power by supplying a perfect match-up of certified RMS continuous power. This bass bundle is a perfect solution for anyone looking to take their bass up a notch and with a free amplifier it would make no sense to pass up.


Crossfire C510D4

10" C5 Series High Excursion Dual 4 Ohm Car Subwoofer
Quantity: 2

  • Pair of 10" Dual 4 Ohm C5 Series Subwoofers
  • Power Handling:
    • Peak: 1200 watts tota / 600 watts each
    • RMS: 600 watts total / 300 watts each
  • Impedance: 4 Ohms
  • Injection Molded Polypropylene (IMPP) woofer cone material
  • Foam composite woofer surround
  • Rubberized trim ring
  • Designed for small enclosures
  • High excursion capability
  • Spring loaded push terminals
  • 2" Dual 2 ohm Kapton high-temperature voice coil
  • Dual 80 oz. ceramic stacked magnet structure
  • Resonance frequency: 36 Hz
  • 16mm Peak-to-peak excursion
  • Mounting depth: 5-3/8"
  • Cutout dimensions: 9-5/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

RE Audio XTX1500.1

XTX Series Mini Monoblock Full Range Digital Class D Car Amplifier
Quantity: 1

  • XTX Series Monoblock Full Range Digital Car Amplifier
  • RMS Power Rating (14.4V):
    • 4 ohms: 190 watts x 1 chan.
    • 2 ohms: 330 watts x 1 chan.
    • 1 ohm: 500 watts x 1 chan.
  • Dynamic power output: 2000 watts
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Wired remote included
  • Selectable bass boost (0-12 dB at 45 Hz)
  • Single channel operation
  • 2-Way System Protection circuitry (thermal and short circuit)
  • Heavy duty brushed aluminum alloy convection cooled heatsink for efficient heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated 8-18AWG screw terminals
  • Input sensitivity:
    • Low level: 200mV-6V
  • Variable low-pass filter (30-250 Hz, 24 dB/octave, Butterworth)
  • Subsonic filter (10-60 Hz, 24 dB/octave)
  • Signal to noise ration: >90dB
  • Phase Shift Control: 0 - 180°
  • Frequency response: 10-350 Hz
  • Dimensions: 5-15/16"L x 7-1/2"W x 1-15/16"H
  • 4-gauge power and ground wiring is required for installation.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Specifications & Details

Amplifier Power Specifications
RMS Power @ 4 ohms
190 watts x 1 channel
RMS Power @ 2 ohms
330 watts x 1 channel
RMS Power @ 1 ohm
500 watts x 1 channel
Peak Power Output
2000 watts x 1 channel
Amplifier Specifications
Amplifier Class
Number of Channels
1 - Mono
Total Peak Power Output
2000 watts
Total RMS Power Output
500 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
1 ohms
Minimum Impedance Bridged
Not Bridgeable
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
30 - 250 Hz
Subsonic Filter
10 - 60 Hz
Signal-to-Noise Ratio
90 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Fan Cooled
Fuse Rating
25A x 2 
CEA-2031 Compliant
Subwoofer Specifications
Number of Subwoofers
Subwoofer Size
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
RMS Power Handling
300 watts
Total RMS Power Handling
600 watts
Peak Power Handling
600 watts
Total Peak Power Handling
1200 watts
Woofer Surround
Woofer Composition
Mica Injected Polypropylene - MIPP
Minimum Sealed Box Volume
0.7 cubic feet
Maximum Sealed Box Volume
0.7 cubic feet
Minimum Ported Box Volume
1.5 cubic feet
Maximum Ported Box Volume
1.5 cubic feet
Xmax (millimeters)
16mm Peak to Peak
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Recommended Enclosure Type
Ported / Vented
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Product and How-to Videos

  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews

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Customer Reviews

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great amp

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

This is a great amp for the money. I have it hooked up to two infinity kappa perfects. They pound pretty hard. Harder than my pioneer 820w and half the size. It gets slightly warm after beating for 10 mins and just as warm after like 6 hours lol. Doesn't get hot!! A buddy recommended Sonic to me and i told another friend about Sonic and he bought two alpine type r and a re amp and wiring kit. Im planning on buying a touchscreen dvd too! Cant beat Sonic's prices!! Thanks sonic :-)

By kj basshead on December 14, 2012


found this helpful.

Good things really do come in small packages

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

This amp is powering a single RE Audio SEX12D2 at 1ohm and is awesome!! Lots of power!

By Stephen on November 12, 2013


found this helpful.

Small package...big sound.

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

I currently have this amp powering an RE Audio SRX 12" sub (Dual 4 Ohm)...running a 2 Ohm load. The very first day I gave it the juice all the way to work (74 minutes) and checked it as soon as I parked. Amp was as cool as can be. It gets the job done and requires very little space for mounting.

By Putter on July 8, 2013


found this helpful.

Works Amazing

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

Bought this to pair up with a single RE Audio SE-X d2 and it powers it perfectly. The sub can take all the amp has which is a lot. Great price too.

By Jake on September 29, 2013


found this helpful.

Good amp

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

I have this amp pushing a 10inch mojo Memphis sub sealed box it sounds outstanding! Amp does not get hot at all! The size of the amp had me a little skeptical about it handling any abuse but I run it hard with no issues. I would recommend this to anyone.

By Downtimecustoms on November 18, 2013


found this helpful.

Not what I expected

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

I would not recommend this product because I been having problems with it since I got it. After awhile it sends a high pitch beeping noise or signal through the sub and then the amp goes into safety mode. I've sent it back to the manufacturer to get checked out and nothing was found. The problem is still happing. My wiring and sub seem fine so the only other thing I can think of is the amp. Other than that, it works fine.

By Cam on September 18, 2013


found this helpful.

Small and efficient

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

Amp runs cool and clean all day after I installed it. I have it hooked up to a nvx nsw 12 at 2 ohms and runs loud all day. I would buy another one for extra subs and love how small and efficient it is. I could fit 2 under the seat of my car easily. Just wish the dials had more increments on the filters and knobs.

By Miguel on August 24, 2013


found this helpful.

Awsome Amp

The following review is for XTX-1500.1, which is a part of the bundle you are viewing.

I purchased this amp because I read only a few reviews and all said this is a great amp. Well I was skeptical when I had received it so I took the plunge and hook it up to my subs, boy I tell you this amp maybe small but it puts out! I have one at the moment running 2 Alpines Type-S 10's and 2 Memphis Audio 10's, all hooked bridged at 2 ohm on this amp and it drives them wild. I love it! Thanks Sonic for having these in stock. I like it so much I had purchased another to Link them together to get even more wattage out of it.

BTW I replaced 2 XM2002GTR amps with this one and prolly will never turn back.

By William on July 29, 2013


found this helpful.


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