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

Discontinued 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.
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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.

Autotek SS1500.4

1500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

SS1500.4 big DISCONTINUED
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Autotek SS1500.4

1500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

• 175 Watts Max x 4 @ 4 ohm
• 375 Watts Max x 4 @ 2 ohm
• 750 Watts Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• 0, +6, +12 Bass Boost Switch
• Heavy-Duty Aluminum Heatsink
• Dimensions: 12.75" W x 10.25" L x 2" H

• 175 Watts Max x 4 @ 4 ohm
• 375 Watts Max x 4 @ 2 ohm
• 750 Watts Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• 0, +6, +12 Bass Boost Switch
• Heavy-Duty Aluminum Heatsink
• Dimensions: 12.75" W x 10.25" L x 2" H

DJ Marine Audio DJ4.480 by Memphis

480W 4 Channel DJ Series Class D Marine Amplifier

DJ4.480 big DISCONTINUED
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DJ Marine Audio DJ4.480 by Memphis

480W 4 Channel DJ Series Class D Marine Amplifier

• RMS Power: 80W x 4 @ 4 ohm, 120W x 4 @ 2 ohm
• Total Peak Power: 480W
• Variable Low Pass Filter
• Dimensions: 7" W x 9.88" L x 2" H

• RMS Power: 80W x 4 @ 4 ohm, 120W x 4 @ 2 ohm
• Total Peak Power: 480W
• Variable Low Pass Filter
• Dimensions: 7" W x 9.88" L x 2" H

MB Quart OA800.4

800W RMS 4-Channel Onyx Series Class SQ Full-Range Bridgeable Power Amplifier

OA800.4 big DISCONTINUED
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MB Quart OA800.4

800W RMS 4-Channel Onyx Series Class SQ Full-Range Bridgeable Power Amplifier

• 100 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 1600 Watts
• 2-Ohm Stable operation, bridgeable to 4-ohm
• Variable Bass Boost (Bass EQ, Ch 3 & 4 only): 0 - +9 dB at 45Hz
• 16 AWG speaker output connections
• Dimensions: 14.17" L x 9.45" W x 2.23" H

41

• 100 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 1600 Watts
• 2-Ohm Stable operation, bridgeable to 4-ohm
• Variable Bass Boost (Bass EQ, Ch 3 & 4 only): 0 - +9 dB at 45Hz
• 16 AWG speaker output connections
• Dimensions: 14.17" L x 9.45" W x 2.23" H

JL Audio XD400/4v2

400W RMS XDv2 Series Class-D 4-Channel Amplifier

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JL Audio XD400/4v2

400W RMS XDv2 Series Class-D 4-Channel Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

19

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Autotek AXL1050.4

1000W 4-Channel AXL Series Class AB Car Amplifier

AXL1050.4 big DISCONTINUED
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Autotek AXL1050.4

1000W 4-Channel AXL Series Class AB Car Amplifier

• 125W x 4-Chan. @ 4 ohm, 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

5

• 125W x 4-Chan. @ 4 ohm, 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

Crunch PD 2000.4 LIKE NEW DAMAGED PACKAGING

2000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

PD 2000.4 big DISCONTINUED
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Crunch PD 2000.4 LIKE NEW DAMAGED PACKAGING

2000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

Like new Damaged Package
• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• Bridged: 1000 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 2000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 17.8"L x 3.8"H

Like new Damaged Package
• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• Bridged: 1000 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 2000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 17.8"L x 3.8"H

Power Acoustik OD4-1300

1300W Peak (640W RMS) Class A/B Overdrive Series 4-Channel Car Amplifier

OD4-1300 big DISCONTINUED
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Power Acoustik OD4-1300

1300W Peak (640W RMS) Class A/B Overdrive Series 4-Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

Kicker DXA250.4 (43DXA2504)

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier

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Kicker DXA250.4 (43DXA2504)

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

2

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

Power Acoustik RZ4-3000D

3000W Peak (1500W RMS) Class D RAZOR Series 4-Channel Car Amplifier

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Power Acoustik RZ4-3000D

3000W Peak (1500W RMS) Class D RAZOR Series 4-Channel Car Amplifier

• 285 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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1

• 285 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Jensen Power400x4

800 W Max (400 W RMS) Power Series Class-A/B 4-Channel 2 Ohm Stable Amplifier

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Jensen Power400x4

800 W Max (400 W RMS) Power Series Class-A/B 4-Channel 2 Ohm Stable Amplifier

• 75 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 800 Watts
High and Low Pass Filters
• 0-12 dB Bass Boost
• Aluminum Heatsink
• 8.25" W x 13" L x 2.125" H

• 75 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 800 Watts
High and Low Pass Filters
• 0-12 dB Bass Boost
• Aluminum Heatsink
• 8.25" W x 13" L x 2.125" H

Limited time!

Soundstream ST4.1000DB

1000W Peak (500W RMS) Class D Stealth Series Compact 4-Channel Car Amplifier with Bluetooth

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Soundstream ST4.1000DB

1000W Peak (500W RMS) Class D Stealth Series Compact 4-Channel Car Amplifier with Bluetooth

• 90 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Built-in Bluetooth for wireless playback

1

• 90 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Built-in Bluetooth for wireless playback

RE Audio SE4150

1600W Max Full Range Class A/B 4-Channel SE Series Amplifier

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RE Audio SE4150

1600W Max Full Range Class A/B 4-Channel SE Series Amplifier

• 100 Watts RMS x 4 @ 4 ohm
• 180 Watts RMS x 4 @ 2 ohm
• 300 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1600 Watts
• Variable low and high pass filter: 50 - 150Hz, 12 dB/octave
• Variable Bass Boost: 0 to +18 dB bass boost
• Dimensions: 8.78"W x 13.39"L x 2.25"H

4

• 100 Watts RMS x 4 @ 4 ohm
• 180 Watts RMS x 4 @ 2 ohm
• 300 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1600 Watts
• Variable low and high pass filter: 50 - 150Hz, 12 dB/octave
• Variable Bass Boost: 0 to +18 dB bass boost
• Dimensions: 8.78"W x 13.39"L x 2.25"H

Power Acoustik EG4-1000

1000W Peak (500W RMS) Edge Series 2-Ohm Stable Class-A/B 4-Channel Amplifier

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Power Acoustik EG4-1000

1000W Peak (500W RMS) Edge Series 2-Ohm Stable Class-A/B 4-Channel Amplifier

• 65 Watts RMS x 4 @ 4 ohm
• 125 Watts RMS x 4 @ 2 ohm
• 250 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 1000 Watts
• Military Grade PCB w/ PWM MOSFET power supply
• Variable low and high-pass filters: 50 - 400 Hz
• Variable Bass Boost: 0, 6 or 12 dB bass boost

4

• 65 Watts RMS x 4 @ 4 ohm
• 125 Watts RMS x 4 @ 2 ohm
• 250 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 1000 Watts
• Military Grade PCB w/ PWM MOSFET power supply
• Variable low and high-pass filters: 50 - 400 Hz
• Variable Bass Boost: 0, 6 or 12 dB bass boost

Crunch PD 1400.4

1400W RMS Power Drive Full Range Class-AB 2-Ohm Stable 4-channel Car Amplifier

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Crunch PD 1400.4

1400W RMS Power Drive Full Range Class-AB 2-Ohm Stable 4-channel Car Amplifier

• 175 Watts Max x 4 @ 4 ohm
• 350 Watts Max x 4 @ 2 ohm
• 700 Watts Max x 2 @ 4 ohm Bridged
• Total Peak Power: 1400 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Speaker-level (high-level) inputs

4

• 175 Watts Max x 4 @ 4 ohm
• 350 Watts Max x 4 @ 2 ohm
• 700 Watts Max x 2 @ 4 ohm Bridged
• Total Peak Power: 1400 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Speaker-level (high-level) inputs

DS18 EXL-P1200X4

1200W RMS Class AB EXL Power Series 4-Channel Full Range Car Amplifier with Bass Remote

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DS18 EXL-P1200X4

1200W RMS Class AB EXL Power Series 4-Channel Full Range Car Amplifier with Bass Remote

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

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2

• 200 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

Crunch PZ2-1530.4D

1500W RMS Class D PowerZone 2 Series 4 Channel Car Amplifier

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Crunch PZ2-1530.4D

1500W RMS Class D PowerZone 2 Series 4 Channel Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 200 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Crunch PD 1000.4

1000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

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Crunch PD 1000.4

1000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

• 125 Watts Max x 4 @ 4 ohm
• 250 Watts Max x 4 @ 2 ohm
• Bridged: 500 Watts Max x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 14.2"L x 3.8"H

• 125 Watts Max x 4 @ 4 ohm
• 250 Watts Max x 4 @ 2 ohm
• Bridged: 500 Watts Max x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 14.2"L x 3.8"H

Hertz ML Power 4

1000W RMS Class D Mille Power Series 4-Channel Full Range Car Amplifier

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Hertz ML Power 4

1000W RMS Class D Mille Power Series 4-Channel Full Range Car Amplifier

• 4 Channel: 150 watts x 4 channel @ 4 ohm
• 4 Channel: 250 watts x 4 channel @ 2 ohm
• 3 Channel: 150 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• 3 Channel: 250 watts x 2 channel @ 2 ohm + 500 watts x 1 channel @ 4 ohm
• 2 Channel: 500 watts x 2 channel @ 4-ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 4 Channel: 150 watts x 4 channel @ 4 ohm
• 4 Channel: 250 watts x 4 channel @ 2 ohm
• 3 Channel: 150 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• 3 Channel: 250 watts x 2 channel @ 2 ohm + 500 watts x 1 channel @ 4 ohm
• 2 Channel: 500 watts x 2 channel @ 4-ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Alpine KTA-30FW

600W Peak (300W RMS) Class D Power Pack Series 4 Channel Marine and Powersports Amplifier

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Alpine KTA-30FW

600W Peak (300W RMS) Class D Power Pack Series 4 Channel Marine and Powersports Amplifier

• 75 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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VIP Product Get $50.00 in rewards to spend later

• 75 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Power Acoustik STAX 2300/4 (STAX2300/4) Factory Refurbished

2300W Max 4-Channel Class A/B STAX Series Amplifier

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Power Acoustik STAX 2300/4 (STAX2300/4) Factory Refurbished

2300W Max 4-Channel Class A/B STAX Series Amplifier

STAX 4-Channel Class A/B Car Amplifier • 200 Watts x 4 Chan. @ 4 Ohm • 250 Watts x 4 Chan. @ 2 Ohm • 2300 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

STAX 4-Channel Class A/B Car Amplifier • 200 Watts x 4 Chan. @ 4 Ohm • 250 Watts x 4 Chan. @ 2 Ohm • 2300 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

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    FAQ Frequently asked questions in Discontinued 4-Channel Amplifiers

    4 Channel Amplifiers Frequently Asked Questions (FAQ)
    A 4-channel amplifier is a type of car audio amplifier that features four separate channels, each capable of powering a speaker or a pair of speakers. By distributing power across four channels, you can connect your front and rear speakers to the amplifier, significantly enhancing the overall sound quality and clarity in your car audio system. With a 4-channel amplifier, you can achieve a balanced soundstage, where the music seems to come from different directions, providing an immersive listening experience. Additionally, these amplifiers often come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output for each set of speakers, optimizing the sound reproduction according to your preferences.
    Yes, many 4-channel amplifiers are bridgeable, allowing you to combine two channels to power a single speaker or subwoofer with higher output power. This bridging capability is useful if you have a pair of high-powered front speakers or a powerful subwoofer that requires more power than a single channel can provide. However, it's essential to check the amplifier's specifications and instructions to confirm its bridgeability and the recommended bridging configurations. Not all 4-channel amplifiers support bridging, and improper bridging can damage the amplifier or connected speakers. If you are unsure about bridging your 4-channel amplifier, consult the amplifier's manual or reach out to Sonic Electronix customer support for expert assistance.
    To select the right 4-channel amplifier for your speakers, consider their power handling capabilities and impedance. First, identify the RMS power rating of your front and rear speakers. The amplifier's RMS power output per channel should match or slightly exceed the RMS power rating of your speakers to ensure optimal performance without distortion. Next, check the impedance (measured in ohms) of your speakers, as well as the amplifier's minimum and maximum impedance ratings. Match the speaker impedance with the appropriate amplifier channels to prevent compatibility issues. For example, if your speakers have an impedance of 4 ohms, make sure the amplifier channels for those speakers can handle a 4-ohm load. Paying attention to these specifications ensures a seamless integration of your speakers with the 4-channel amplifier.
    Yes, a 4-channel amplifier can be used to power additional speakers, such as tweeters or coaxial speakers, in your car audio system. Beyond the front and rear speakers, a 4-channel amplifier has the flexibility to accommodate additional speaker types, provided that the total load impedance and power requirements of the amplifier's channels are within its specifications. For example, if your 4-channel amplifier has two unused channels, you can use them to power additional speakers for improved sound coverage and audio performance. Be cautious not to overload the amplifier, and ensure that the speakers' impedance and power handling align with the available channels to avoid damaging the amplifier or speakers. If you have questions about expanding your audio system with a 4-channel amplifier, seek expert advice from Sonic Electronix.
    A proper and safe installation of a 4-channel amplifier is essential for optimal performance and to prevent any electrical or mechanical issues. To ensure a successful installation, start by reading the amplifier's user manual thoroughly, as it contains specific instructions and guidelines for installation. Follow all safety precautions and use the appropriate wiring and connectors rated for the amplifier's power output. Securely mount the amplifier in a well-ventilated area, away from heat sources, and avoid placing it on carpeted surfaces. Route and secure all cables carefully to avoid interference and potential hazards. Double-check all connections to ensure they are tight and secure. If you are not confident in installing the amplifier yourself, consider seeking professional installation services to ensure a safe and expertly done installation that optimizes the performance of your 4-channel amplifier and car audio system.
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