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  1. Home
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  3. Discontinued MTX Car Audio & Electronics
  4. Discontinued MTX Car Amplifiers
  5. Discontinued MTX 4-Channel Amplifiers

Discontinued MTX 4-Channel Amplifiers

Perfectly balanced sound awaits with MTX's versatile 4-Channel Amplifiers.

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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.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
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.
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.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
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.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
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.
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.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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You are currently viewing discontinued products.

MTX Audio TC6004 + Amplifier Kit

1800W Max 4-Channel Amplifier w/ 4 Gauge Amplifier Kit and 4 Channel RCA Interconnects

TC6004_AMP850BL big DISCONTINUED
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MTX Audio TC6004 + Amplifier Kit

1800W Max 4-Channel Amplifier w/ 4 Gauge Amplifier Kit and 4 Channel RCA Interconnects

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Includes Amp Kit & RCA Interconnects

30

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Includes Amp Kit & RCA Interconnects

EXCLUSIVE

MTX Audio RT604 + Amplifier Kit

360W Max, 4-Channel Class A/B Car Amp + The Install Bay 8 Gauge Amp Kit + 1F Cap + Ring Terminals

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MTX Audio RT604 + Amplifier Kit

360W Max, 4-Channel Class A/B Car Amp + The Install Bay 8 Gauge Amp Kit + 1F Cap + Ring Terminals

Road Thunder Series 4-Channel Class AB Car Amplifier • PWM MOSFET Power Supply • 3-Way Protection Circuitry • Variable Low-Pass Filter • Variable High-Pass Filter • RX1200 Digital 1.2 Farad Capacitor • For Systems up to 1200 Watts • Complete 8 Gauge Amplifier Installation Kit with RCA Interconnect Cables

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Road Thunder Series 4-Channel Class AB Car Amplifier • PWM MOSFET Power Supply • 3-Way Protection Circuitry • Variable Low-Pass Filter • Variable High-Pass Filter • RX1200 Digital 1.2 Farad Capacitor • For Systems up to 1200 Watts • Complete 8 Gauge Amplifier Installation Kit with RCA Interconnect Cables

MTX Audio MUD100.4 (Open Box)

800W Peak (400W RMS) 4-Channel Bridgeable Ultra-Compact Class D Power Sports Amplifier for Install In Car, Off-Road, SSV and more...

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MTX Audio MUD100.4 (Open Box)

800W Peak (400W RMS) 4-Channel Bridgeable Ultra-Compact Class D Power Sports Amplifier for Install In Car, Off-Road, SSV and more...

• 50 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 800 Watts
• Selectable Front high-pass filter: 80 / 200 Hz
• Speaker-level (high-level) inputs

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• 50 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 800 Watts
• Selectable Front high-pass filter: 80 / 200 Hz
• Speaker-level (high-level) inputs

MTX Audio XThunder 504X R/B

600W Max, 4-Channel Amplifier X Thunder 504 X

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MTX Audio XThunder 504X R/B

600W Max, 4-Channel Amplifier X Thunder 504 X

X Thunder Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 75W x 4 chan. @ 2 ohm • Stereo gain control • Heavy duty aluminum construction with large heat-sinks

X Thunder Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 75W x 4 chan. @ 2 ohm • Stereo gain control • Heavy duty aluminum construction with large heat-sinks

MTX WET75.4 Open Box (Complete)

400W Wet Series 4-Channel All Weather Class A/B Marine/Powersports Compact Amplifier

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MTX WET75.4 Open Box (Complete)

400W Wet Series 4-Channel All Weather Class A/B Marine/Powersports Compact Amplifier

• RMS Power: 75W x 4 @ 4 ohm, 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Plastic Cover Over Control-Adjustments
• Dimensions: 12.15"W x 6.40"L x 2.25"H

• RMS Power: 75W x 4 @ 4 ohm, 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Plastic Cover Over Control-Adjustments
• Dimensions: 12.15"W x 6.40"L x 2.25"H

MTX Thunder404 4-Channel

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MTX Thunder404 4-Channel

400 watts RMS (at 2 ohm stereo or 4 ohm mono) • preamp outputs • MOSFET power supply • High-pass and Low-pass crossovers

400 watts RMS (at 2 ohm stereo or 4 ohm mono) • preamp outputs • MOSFET power supply • High-pass and Low-pass crossovers

MTX RFL404 R/B

800W 4-Channel RFL Series Car Amplifier with Active Cooling Fan

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MTX RFL404 R/B

800W 4-Channel RFL Series Car Amplifier with Active Cooling Fan

4-Channel RFL Series Car Amplifier • Patented Pure N-Channel Technology • Smart Engage Circuitry • JackStands Included • Built-In Active Fan Cooling Technology • CEA-2006 Compliant Amplifier • Preamp RCA Outputs

4-Channel RFL Series Car Amplifier • Patented Pure N-Channel Technology • Smart Engage Circuitry • JackStands Included • Built-In Active Fan Cooling Technology • CEA-2006 Compliant Amplifier • Preamp RCA Outputs

EXCLUSIVE

MTX Audio Speakers + RE Audio Amplifier Bundle

5" x 7" MTX TN573 Terminator Series Speakers + RE Audio DTS-500.4 4-Channel Amp + Kit + Dampening

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MTX Audio Speakers + RE Audio Amplifier Bundle

5" x 7" MTX TN573 Terminator Series Speakers + RE Audio DTS-500.4 4-Channel Amp + Kit + Dampening

5" x 7" / 6" x 8" Terminator Series 3-Way Car Speakers • 220W Max • 110W RMS • DTS Series 4-Channel Class A/B Car Amplifier • PWM MOSFET Power Supply • 2-Way Protection Circuitry • Amplifier Kit • Sound Dampening Material

5" x 7" / 6" x 8" Terminator Series 3-Way Car Speakers • 220W Max • 110W RMS • DTS Series 4-Channel Class A/B Car Amplifier • PWM MOSFET Power Supply • 2-Way Protection Circuitry • Amplifier Kit • Sound Dampening Material

MTX TH90.4

720W 4-Channel TH Series Class A/B Car Amplifier

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MTX TH90.4

720W 4-Channel TH Series Class A/B Car Amplifier

• 4 ohm: 60 watts x 4-Chan.
• 2 ohm: 90 watts x 4-Chan.
• Bridged, 4 ohm: 180 watts x 4-Chan.
• 4/3/2 Channel Operation

• 4 ohm: 60 watts x 4-Chan.
• 2 ohm: 90 watts x 4-Chan.
• Bridged, 4 ohm: 180 watts x 4-Chan.
• 4/3/2 Channel Operation

MTX Audio TC6004 R/B

(REFURBISHED) 1800W Max, 4-Channel Amplifier

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MTX Audio TC6004 R/B

(REFURBISHED) 1800W Max, 4-Channel Amplifier

1800W Max, 4-Channel Amplifier • atented state of the art power supply and output stage • Adjustable HP/LP crossover - 40Hz - 350 Hz, 12 dB/oct for maximum system design flexibility • Fully adjustable bass boost - 40H, 0-18dB to enhance the low frequency experience in your vehicle

1

1800W Max, 4-Channel Amplifier • atented state of the art power supply and output stage • Adjustable HP/LP crossover - 40Hz - 350 Hz, 12 dB/oct for maximum system design flexibility • Fully adjustable bass boost - 40H, 0-18dB to enhance the low frequency experience in your vehicle

EXCLUSIVE

MTX + Cerwin Vega Ultra-Compact 4-Channel Full-Range 6x8" Speaker System

2-Way Thunder Series Component System + 2-Way Thunder Series Coaxial System + Cerwin-Vega B4 4-Ch. Class-D Amplifier + TruConnex Amp Wiring Kit

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MTX + Cerwin Vega Ultra-Compact 4-Channel Full-Range 6x8" Speaker System

2-Way Thunder Series Component System + 2-Way Thunder Series Coaxial System + Cerwin-Vega B4 4-Ch. Class-D Amplifier + TruConnex Amp Wiring Kit

• 4 ohm: 80 watts x 4 chan.
• 1" Soft Dome Tweeter
• Polypropylene Cone and Rubber Surround
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

50

• 4 ohm: 80 watts x 4 chan.
• 1" Soft Dome Tweeter
• Polypropylene Cone and Rubber Surround
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

MTX Audio TC4004 R/B

1200W Max, Thunder TC 4-Channel Amplifier

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MTX Audio TC4004 R/B

1200W Max, Thunder TC 4-Channel Amplifier

1200 watts Max, Class A/B 4-Channel Amplifier • 100 watts x 4 chan. @ 2 ohm • 200 watts x 2 chan. @ 4 ohm Bridged • CEA-2006 Compliant • 12 dB per Octave, Adjustable High Pass and Low Pass Crossover • Smart Engage Auto Turn-On for easy installation with factory radios • Frequency Response: 20 - 20,000 Hz

1200 watts Max, Class A/B 4-Channel Amplifier • 100 watts x 4 chan. @ 2 ohm • 200 watts x 2 chan. @ 4 ohm Bridged • CEA-2006 Compliant • 12 dB per Octave, Adjustable High Pass and Low Pass Crossover • Smart Engage Auto Turn-On for easy installation with factory radios • Frequency Response: 20 - 20,000 Hz

MTX TD75.4 R/B

4-Channel TD Series Class A/B Car Amplifier

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MTX TD75.4 R/B

4-Channel TD Series Class A/B Car Amplifier

4-Channel TD Series Class A/B Car Amplifier • 4 ohm: 75 watts x 4 chan. • 2 ohm: 100 watts x 4 chan. • Bridged, 4 Ohm: 200 x 2 chan. • 4/3/2 channel operation

4-Channel TD Series Class A/B Car Amplifier • 4 ohm: 75 watts x 4 chan. • 2 ohm: 100 watts x 4 chan. • Bridged, 4 Ohm: 200 x 2 chan. • 4/3/2 channel operation

MTX Audio TC6004 Open Box

(Open Box) 1800W Max 4-Channel Amplifier

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MTX Audio TC6004 Open Box

(Open Box) 1800W Max 4-Channel Amplifier

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Soft Start Turn-on • Bass Boost

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Soft Start Turn-on • Bass Boost

MTX Audio JackHammer JH404 (Refurbished)

800W Max, 4-Channel Jack Hammer Series Amplifier (Refurbished)

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MTX Audio JackHammer JH404 (Refurbished)

800W Max, 4-Channel Jack Hammer Series Amplifier (Refurbished)

JackHammer Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Patented Pure N-Channel technology • Smart Engage circuitry • Stackable configuration • Built-in active fan cooling

1

JackHammer Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Patented Pure N-Channel technology • Smart Engage circuitry • Stackable configuration • Built-in active fan cooling

MTX Thunder Elite 1004 (TE1004) R/B

(Factory Refurbished) 1900W Max, 4-Channel Thunder Elite Amplifier

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MTX Thunder Elite 1004 (TE1004) R/B

(Factory Refurbished) 1900W Max, 4-Channel Thunder Elite Amplifier

Thunder Elite Series 4-Channel Class AB Car Amplifier • 125W x 4 chan. @ 4 ohm • 225W x 4 chan. @ 2 ohm • 1900W Max • Semi Unregulated MOSFET • 4/3/2/1 channel operation • Overload and thermal protection

1

Thunder Elite Series 4-Channel Class AB Car Amplifier • 125W x 4 chan. @ 4 ohm • 225W x 4 chan. @ 2 ohm • 1900W Max • Semi Unregulated MOSFET • 4/3/2/1 channel operation • Overload and thermal protection

EXCLUSIVE

MTX + Cerwin Vega Ultra-Compact 4-Channel Full-Range 6½" Speaker System

Thunder Series Component Speaker System + Thunder Series Coaxial Speakers + Cerwin-Vega B4 4-Ch. Class-D Amplifier + TruConnex Amp Wiring Kit

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MTX + Cerwin Vega Ultra-Compact 4-Channel Full-Range 6½" Speaker System

Thunder Series Component Speaker System + Thunder Series Coaxial Speakers + Cerwin-Vega B4 4-Ch. Class-D Amplifier + TruConnex Amp Wiring Kit

• 4 ohm: 80 watts x 4 chan.
•Silk Soft Dome Tweeter
• Polypropylene Woofer Cone
• 2-Way Crossover With Adjustable Tweeter Level
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

53

• 4 ohm: 80 watts x 4 chan.
•Silk Soft Dome Tweeter
• Polypropylene Woofer Cone
• 2-Way Crossover With Adjustable Tweeter Level
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

EXCLUSIVE

MTX Thuder Elite Amplifier & Amp Kit Combo

4-Channel Thunder Elite Amplifier + 4 AWG Amp Kit + Interconnect Cables + Sound Dampening Trunk Kit

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MTX Thuder Elite Amplifier & Amp Kit Combo

4-Channel Thunder Elite Amplifier + 4 AWG Amp Kit + Interconnect Cables + Sound Dampening Trunk Kit

MTX Thunder Elite 604 4-Channel Thunder Elite Class AB Amplifier + StreetWires ZN5K-04 Zero Noise ZN5 Series 4 AWG Amplifier Installation Kit + StreetWires ZN9450 16.4 ft. of ZN9 Series 4-Channel Interconnect Cable + Ballistic SSTKT Sound Dampening Trunk Kit Combo Package

11

MTX Thunder Elite 604 4-Channel Thunder Elite Class AB Amplifier + StreetWires ZN5K-04 Zero Noise ZN5 Series 4 AWG Amplifier Installation Kit + StreetWires ZN9450 16.4 ft. of ZN9 Series 4-Channel Interconnect Cable + Ballistic SSTKT Sound Dampening Trunk Kit Combo Package

MTX JH3004

720W Peak (360W RMS) Jackhammer Series 4-Channel Class AB Amplifier

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MTX JH3004

720W Peak (360W RMS) Jackhammer Series 4-Channel Class AB Amplifier

• 60 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 180 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

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• 60 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 180 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

MTX XTHUNDER125.4

500W RMS XThunder Series 4-Channel Class AB Amplifier

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MTX XTHUNDER125.4

500W RMS XThunder Series 4-Channel Class AB Amplifier

• RMS Power: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm
• RMS Power: 500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dimensions: 8.93" W x 14.17" L x 2.03" H

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• RMS Power: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm
• RMS Power: 500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dimensions: 8.93" W x 14.17" L x 2.03" H

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    MTX 4-Channel Amplifiers Information

    A 4 channel car amplifier from MTX will provide your vehicle with the power it requires. These amps can operate four channels and MTX is a leader in amplification solutions. Power your speakers with an MTX 4-channel amplifier for a great all-around sound.
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