Semi Truck 4-Channel Amplifiers
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Soundstream® - Stealth Series 1000W 4-Channel Class D AmplifierStealth Series 1000W 4-Channel Class D Amplifier by Soundstream®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Hybrid Aluminum Alloy Heatsink for Optimum DissipationMOSFET Power Supply w/ Audiophile Grade IRTM Transistors$141.74 - $179.21In Stock - Ships within 24 hrs - Audiopipe® - APCLE Series 1000W 4-Channel Class AB Amplifier (APCLE-1004)APCLE Series 1000W 4-Channel Class AB Amplifier by Audiopipe®. Boasting the latest in technology, this 1st-rate amplifier from Audiopipe is the finest piece of competition car audio gear that will take your listening experience to a...Pulse-Width Modulated (PWM) MOFSET power supply for maximum performance with minimum distortionRemote turn-on with "soft start" muting to prevent turn-on "thump"$179.99In Stock - Ships in 24 to 48 hrs
- Audiopipe® - APCLE Series 1500W 4-Channel Class AB Amplifier (APCLE-1504)APCLE Series 1500W 4-Channel Class AB Amplifier by Audiopipe®. Boasting the latest in technology, this 1st-rate amplifier from Audiopipe is the finest piece of competition car audio gear that will take your listening experience to a...Pulse-Width Modulated (PWM) MOFSET power supply for maximum performance with minimum distortionRemote turn-on with "soft start" muting to prevent turn-on "thump"$190.99In Stock - Ships in 24 to 48 hrs
- Audiopipe® - APCLE Series 2000W 4-Channel Class AB Amplifier (APCLE-2004)APCLE Series 2000W 4-Channel Class AB Amplifier by Audiopipe®. Boasting the latest in technology, this 1st-rate amplifier from Audiopipe is the finest piece of competition car audio gear that will take your listening experience to a...Pulse-Width Modulated (PWM) MOFSET power supply for maximum performance with minimum distortionRemote turn-on with "soft start" muting to prevent turn-on "thump"$205.99In Stock - Ships in 24 to 48 hrs
- Audiopipe® - APDLO Series 2100W 4-Channel Amplifier (APDLO-2504)APDLO Series 2100W 4-Channel Amplifier by Audiopipe®. Boasting the latest in technology, this 1st-rate amplifier from Audiopipe is the finest piece of competition car audio gear that will take your listening experience to a whole new...Made to offer exceptional sound qualityClear sound at high frequencies$1,000.00In Stock - Ships in 24 to 48 hrs
- Crunch® - Ground Pounder 1500W 4-Channel Class AB Amplifier (GP-1500.4)Ground Pounder 1500W 4-Channel Class AB Amplifier by Crunch®. Crunch Ground Pounder with QTD Technology delivers 1500 watts to subwoofers and includes built-in electronic crossovers. This top-grade product is expertly made in compliance...Low Noise Preamplifier Circuit - Maximum low voltage signal from the source unit comes into the amplifier through a low voltage circuit which delivers minimal distortion through the amplification processRCA Inputs - Highest sound quality connection with quality RCA materials helps prevent interference and minimize distortion in the signal path$139.99In Stock - Ships in 24 to 48 hrs
- Crunch® - Ground Pounder 2000W 4-Channel Class AB Amplifier (GP-2000.4)Ground Pounder 2000W 4-Channel Class AB Amplifier by Crunch®. Crunch Ground Pounder with QTD Technology delivers 1500 watts to subwoofers and includes built-in electronic crossovers. This top-grade product is expertly made in compliance...Low Noise Preamplifier Circuit - Maximum low voltage signal from the source unit comes into the amplifier through a low voltage circuit which delivers minimal distortion through the amplification processRCA Inputs - Highest sound quality connection with quality RCA materials helps prevent interference and minimize distortion in the signal path$159.99In Stock - Ships in 24 to 48 hrs
- DS18® - 1400W 4-Channel Class D Amplifier (X4)1400W 4-Channel Class D Amplifier by DS18®. Micro amps are a great power solution for an audio enthusiast that doesn't have alot of room to spare for big bulky amps. In this case, you want to maximize your size to power ratio so you can...High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction$179.95In Stock - Ships within 24 hrs
- DS18® - Gen-X Series 3600W 4-Channel Class D Amplifier (G3600.4D)Gen-X Series 3600W 4-Channel Class D Amplifier by DS18®. The Gen-X series has always been a DS18 staple with the public and been in countless system builds over the many years it was released. DS18 have completely redesigned the GEN-X...Small and powerful design so you can power your subs with great efficiency and power without taking up much spaceIntegrated low pass and high pass filter to help you get the perfect response you are looking for$289.95In Stock - Ships within 24 hrs
- Hifonics® - THOR™ Series 350W 4-Channel Class D Amplifier (TPS-A350.4)THOR™ Series 350W 4-Channel Class D Amplifier by Hifonics®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction$88.79In Stock - Ships in 24 to 48 hrs
- Planet Audio® - Anarchy Series 1200W 4-Channel Class AB Amplifier (AC12004)Anarchy Series 1200W 4-Channel Class AB Amplifier by Planet Audio®. Boost that bass with this high-end amplifier from Planet Audio. Combining cutting-edge technology with a sleek design, this extremely powerful amp is a perfect tune-up...Full Range Class A/B, MOSFET Power SupplyHigh and Low Level Inputs$109.25In Stock - Ships in 24 to 48 hrs
- Planet Audio® - Anarchy Series 1600W 4-Channel Class AB Amplifier (AC16004)Anarchy Series 1600W 4-Channel Class AB Amplifier by Planet Audio®. Boost that bass with this high-end amplifier from Planet Audio. Combining cutting-edge technology with a sleek design, this extremely powerful amp is a perfect tune-up...Full Range Class A/B, MOSFET Power SupplyHigh and Low Level Inputs$125.95In Stock - Ships in 24 to 48 hrs
- Planet Audio® - Pulse Series 1600W 4-Channel Class AB Amplifier (PL1600.4)Pulse Series 1600W 4-Channel Class AB Amplifier by Planet Audio®. Boost that bass with this high-end amplifier from Planet Audio. Combining cutting-edge technology with a sleek design, this extremely powerful amp is a perfect tune-up...2 Ohm Stable - The lowest impedance accepted by this amplifier is 2 Ohms. Amplifiers that are 2 Ohms stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 OhmsClass A/B - Class A/B amplifiers have long been known for their ability to produce great quality sound while performing more efficiently than pure Class A amplifiers. Planet Audio have developed a specific linear circuitry that further reduces distortion while increasing both sound quality and power output$129.00In Stock - Ships in 24 to 48 hrs
- Planet Audio® - Pulse Series 2400W 4-Channel Class AB Amplifier (PL2400.4)Pulse Series 2400W 4-Channel Class AB Amplifier by Planet Audio®. Boost that bass with this high-end amplifier from Planet Audio. Combining cutting-edge technology with a sleek design, this extremely powerful amp is a perfect tune-up...2 Ohm Stable - The lowest impedance accepted by this amplifier is 2 Ohms. Amplifiers that are 2 Ohms stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 OhmsClass A/B - Class A/B amplifiers have long been known for their ability to produce great quality sound while performing more efficiently than pure Class A amplifiers. Planet Audio have developed a specific linear circuitry that further reduces distortion while increasing both sound quality and power output$133.82In Stock - Ships in 24 to 48 hrs
- Power Acoustik® - Overdrive Series 1300W 4-Channel Class AB Amplifier (Ow-Od4-1300)Overdrive Series 1300W 4-Channel Class AB Amplifier by Power Acoustik®. Smaller, more economic vehicles are more and more desirable. But that doesn't mean you have to sacrifice big power for your system. Overdrive amplifiers pack huge...2-ohm Stereo & 4-ohm Bridged Full-Range OperationMilitary Grade PCB with PWM MOSFET Power Supply$83.94In Stock - Ships in 24 to 48 hrs
- Power Acoustik® - Overdrive Series 1800W 4-Channel Class AB Amplifier (OD41800)Overdrive Series 1800W 4-Channel Class AB Amplifier by Power Acoustik®. Smaller, more economic vehicles are more and more desirable. But that doesn't mean you have to sacrifice big power for your system. Overdrive amplifiers pack huge...2-ohm Stereo & 4-ohm Bridged Full-Range OperationMilitary Grade PCB with PWM MOSFET Power Supply$692.99In Stock - Ships in 24 to 48 hrs
- Power Acoustik® - Razor Series 2000W 4-Channel Class D Amplifier (RZ4-2000D)Razor Series 2000W 4-Channel Class D Amplifier by Power Acoustik®. Smaller, more economic vehicles are more and more desirable. But that doesn't mean you have to sacrifice big power for your system. Razor amplifiers pack huge power into...4 Ohm Bridged/2 Ohm Stereo Class D Full RangeFull MOSFET PWM Power Supply$120.74In Stock - Ships in 24 to 48 hrs
- Power Acoustik® - Vertigo Series 1800W 4-Channel Class AB Amplifier (VA4-1800D)Vertigo Series 1800W 4-Channel Class AB Amplifier by Power Acoustik®. Vertigo amplifiers are the next step in performance and value. Taking advantage of tried and true class A/B full range and improved efficiency class D monoblock...2 Ohm Stereo & 4 Ohm Bridged Class A/B Full RangeMOSFET Power Supply with Audiophile Grade IRTM Transistors$68.99In Stock - Ships in 24 to 48 hrs
- Power Acoustik® - Vertigo Series 2200W 4-Channel Class AB Amplifier (VA4-2200D)Vertigo Series 2200W 4-Channel Class AB Amplifier by Power Acoustik®. Vertigo amplifiers are the next step in performance and value. Taking advantage of tried and true class A/B full range and improved efficiency class D monoblock...2 Ohm Stereo & 4 Ohm Bridged Class A/B Full RangeMOSFET Power Supply with Audiophile Grade IRTM Transistors$78.19In Stock - Ships in 24 to 48 hrs
- Soundstream® - Picasso Nano Series 1040W 4-Channel Class D Amplifier (PN4.520D)Picasso Nano Series 1040W 4-Channel Class D Amplifier by Soundstream®. When you get your first look at Picasso Nano Amplifiers, you will realize that size really does not matter too much at all. It is amazing and quite unbelievable that...High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction$142.77In Stock - Ships in 24 to 48 hrs
- Soundstream® - Picasso Nano Series 2000W 4-Channel Class D Amplifier (PN4.1000D)Picasso Nano Series 2000W 4-Channel Class D Amplifier by Soundstream®. When you get your first look at Picasso Nano Amplifiers, you will realize that size really does not matter too much at all. It is amazing and quite unbelievable that...High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction$185.25In Stock - Ships in 24 to 48 hrs
- Soundstream® - Stealth Series 1000W 4-Channel Class D Amplifier (ST41000D)Stealth Series 1000W 4-Channel Class D Amplifier (ST41000D) by Soundstream®. Don't let these little monsters fool you. The latest and greatest of Class D full range technology allows us to pack 10 pounds of KICK YOUR ASS in less than...Hybrid Aluminum Alloy Heatsink for Optimum Dissipation2-ohm Stereo & 4-ohm Bridged Full-Range Operation$141.74In Stock - Ships within 24 hrs
- Soundstream® - Stealth Series 1000W 4-Channel Class D Amplifier with Bluetooth (ST41000DB)Stealth Series 1000W 4-Channel Class D Amplifier with Bluetooth (ST41000DB) by Soundstream®. Don't let these little monsters fool you. The latest and greatest of Class-D full range technology allows us to pack 10 pounds of KICK YOUR ASS...Hybrid Aluminum Alloy Heatsink for Optimum DissipationBuilt-in Bluetooth for Wireless Smartphone Music Playback$179.21In Stock - Ships within 24 hrs
Get that extra power to upgrade your vehicle’s sound system to enjoy a crisp, crystal-clear sound at all sound levels by investing in an external amp. Whether you’re dissatisfied with muddy sound coming from your semi truck’s factory stereo and speakers or need an amp to drive your new aftermarket speakers, a 4-channel amplifier is a perfect option to go. A good amplifier will not only make your music louder but also make it sound way better, bringing all the depth and detail. On our digital shelves, we’ve handpicked amplifiers from the most trusted and reputable brand names in the industry.
Designed with sound quality, performance, and versatility in mind, 4-channel amplifiers are a sure way to get the most out of your semi truck’s speakers and breathe new life into your music. You can use a 4-channel amp to run all 4 speakers or switch to a 3-channel mode to power a couple of speakers and bridge the power of 2 channels to drive your high-RPM sub or two. This way you can enjoy clean highs and deep lows that will make your music sound more dynamic. This type of amp can be also used to bi-amp a pair of component speakers. Most of the 4-channel amplifiers are class A/B, capable of delivering the most amount of power with the least amount of distortion, so you can experience a high-fidelity sound. However, in recent years, full-range class D amps are rising in popularity due to their small size, light weight, and capability to generate less heat while delivering the stunning sound that’s almost the same as produced by A/B amplifiers. They may also feature preamp outputs, bass boost, have a built-in crossover, and Bluetooth.
