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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.
Zeus Series (30)
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Punch BR Series (8)
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AXL Series (7)
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Riot Series (7)
SAE Series (7)
Tarantula Series (7)
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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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NVX NDA6004 (Like New (Open Box))

1200W Peak (600W RMS) N-Series Class-D 4-Channel Amplifier

NDA6004 big DISCONTINUED
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NVX NDA6004 (Like New (Open Box))

1200W Peak (600W RMS) N-Series Class-D 4-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: 600 watts
• Class D 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: 600 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Belva BXA6404 (Like New (Open Box))

640W Peak BX-Series Class A/B 4-Channel Car Audio Amplifier

BXA6404 big DISCONTINUED
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Belva BXA6404 (Like New (Open Box))

640W Peak BX-Series Class A/B 4-Channel Car Audio Amplifier

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

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

Rockford Fosgate Prime R2-500X4 (Open Box, Great)

500W RMS Class D Prime Series 4 Channel Car Amplifier

R2-500X4 big DISCONTINUED
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Rockford Fosgate Prime R2-500X4 (Open Box, Great)

500W RMS Class D Prime Series 4 Channel Car Amplifier

• 75 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

• 75 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

Precision Power TM4.2000D

2000W Peak Class D Trax Micro Series 4-Channel Micro Car Amplifier

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Precision Power TM4.2000D

2000W Peak Class D Trax Micro Series 4-Channel Micro Car Amplifier

• Total Peak Power: 2000 watts
• Class D Stable 4-Channel Amplifier

• Total Peak Power: 2000 watts
• Class D Stable 4-Channel Amplifier

Alpine HDA-F60 (Like New (Open Box))

600W RMS Class D Status Series 4 Channel Car Amplifier

HDA-F60 big DISCONTINUED
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Alpine HDA-F60 (Like New (Open Box))

600W RMS Class D Status Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

JL Audio HX280/4 Open Box Complete (Very Good, Used)

280W 4-Ch Class D Full-Range Ultra-Compact Amplifier for Powersport Vehicles

HX280/4 big DISCONTINUED
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JL Audio HX280/4 Open Box Complete (Very Good, Used)

280W 4-Ch Class D Full-Range Ultra-Compact Amplifier for Powersport Vehicles

• Item Condition: Open Box
• 50W x 4 @ 4ohm , 70W x 4 @ 2ohm
• NexD™ ultra-high-speed switching design
• Black powder-coated finish
• Gasketed cover for the controls
• Stainless steel hardware for durability
• Accepts RCA (low-level) & Speaker-level (high-level) signal
• Signal to Noise Ration: 89.5 dB

• Item Condition: Open Box
• 50W x 4 @ 4ohm , 70W x 4 @ 2ohm
• NexD™ ultra-high-speed switching design
• Black powder-coated finish
• Gasketed cover for the controls
• Stainless steel hardware for durability
• Accepts RCA (low-level) & Speaker-level (high-level) signal
• Signal to Noise Ration: 89.5 dB

Precision Power NTA1000.4

1000W Peak Class D 4-Channel Full Range Car Amplifier

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Precision Power NTA1000.4

1000W Peak Class D 4-Channel Full Range Car Amplifier

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

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

JL Audio MHD6004 (Open Box, Complete)

600W 4-Channel Class D, MHD Series Small Profile Marine Amplifier with R.I.P.S. Technology

MHD600/4 big DISCONTINUED
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JL Audio MHD6004 (Open Box, Complete)

600W 4-Channel Class D, MHD Series Small Profile Marine Amplifier with R.I.P.S. Technology

4-Channel Class D MHD Series Marine Amplifier • 150W x 4 Chan. @ 4 ohm • 300W x 2 Chan. Bridged @ 8 ohm • Regulated Intelligent Power Supply • Single Cycle Control Technology • Studio-Grade Signal Processing • Advanced Rollback Protection Circuitry

4-Channel Class D MHD Series Marine Amplifier • 150W x 4 Chan. @ 4 ohm • 300W x 2 Chan. Bridged @ 8 ohm • Regulated Intelligent Power Supply • Single Cycle Control Technology • Studio-Grade Signal Processing • Advanced Rollback Protection Circuitry

NVX JAD800.4 - Open Box Complete

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

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NVX JAD800.4 - Open Box Complete

True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

• Open Box Complete
• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 400 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

• Open Box Complete
• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 400 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

Rockford Fosgate Prime R300X4

300W 4-Channel Class AB Prime Series Full Range Amplifier

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Rockford Fosgate Prime R300X4

300W 4-Channel Class AB Prime Series Full Range Amplifier

• 50W x 4-Chan. @ 4 ohm
• 75W x 4-Chan. @ 2 ohm
• 150W x 2 Chan. @ 4 ohm Bridged
• Selectable Bass Boost, Punch EQ
• Variable High-Pass & Low-Pass Crossover
• CEA-2006 Compliant
• Soft Start Turn-On

17

• 50W x 4-Chan. @ 4 ohm
• 75W x 4-Chan. @ 2 ohm
• 150W x 2 Chan. @ 4 ohm Bridged
• Selectable Bass Boost, Punch EQ
• Variable High-Pass & Low-Pass Crossover
• CEA-2006 Compliant
• Soft Start Turn-On

Hertz ML Power 4 (Open Box, Great)

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

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Hertz ML Power 4 (Open Box, Great)

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

• 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

Hertz ML Power 4 (Open-box, Like New)

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

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Hertz ML Power 4 (Open-box, Like New)

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

• 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

Kicker 46CXA3604 (CXA360.4) 4-Channel Amplifier + Remote

600 Watt Peak (300W RMS) CX Series 4-Channel Bridgeable Class D Car Amplifier Package

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Kicker 46CXA3604 (CXA360.4) 4-Channel Amplifier + Remote

600 Watt Peak (300W RMS) CX Series 4-Channel Bridgeable Class D Car Amplifier Package

• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low/High-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 12-7/16"L x 2-3/8"H

• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low/High-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 12-7/16"L x 2-3/8"H

JL Audio HX280/4 (Open Box)

280W 4-Ch Class D Full-Range Ultra-Compact Amplifier for Powersport Vehicles / SSVs / UTVs / Motorcycles / Muscle Cars / HotRods / Cars

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JL Audio HX280/4 (Open Box)

280W 4-Ch Class D Full-Range Ultra-Compact Amplifier for Powersport Vehicles / SSVs / UTVs / Motorcycles / Muscle Cars / HotRods / Cars

• 50W x 4 @ 4ohm , 70W x 4 @ 2ohm
• NexD™ ultra-high-speed switching design
• Black powder-coated finish
• Gasketed cover for the controls
• Stainless steel hardware for durability
• Accepts RCA (low-level) & Speaker-level (high-level) signal
• Signal to Noise Ration: 89.5 dB

2

• 50W x 4 @ 4ohm , 70W x 4 @ 2ohm
• NexD™ ultra-high-speed switching design
• Black powder-coated finish
• Gasketed cover for the controls
• Stainless steel hardware for durability
• Accepts RCA (low-level) & Speaker-level (high-level) signal
• Signal to Noise Ration: 89.5 dB

Alpine KTA-30FW + FREE $75 Gift Card

600W Max (300W RMS) KTA Series 4 ohm Stable 4-Channel Class-D Tough Power Pack Amplifier

KTA-30FW, 75EGIFT big DISCONTINUED
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Alpine KTA-30FW + FREE $75 Gift Card

600W Max (300W RMS) KTA Series 4 ohm Stable 4-Channel Class-D Tough Power Pack Amplifier

• 75 Watts RMS x 4 @ 4 ohm
• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• Input/Output/Power Harness Included
• IP66 Weatherproof Rating

3

• 75 Watts RMS x 4 @ 4 ohm
• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• CEA-2006 Compliant
• Input/Output/Power Harness Included
• IP66 Weatherproof Rating

JL Audio Slash 300/4v3 Amplifier + Free $100 Gift Card

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

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JL Audio Slash 300/4v3 Amplifier + Free $100 Gift Card

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

8

• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

Boss Audio 1600 Watt 4 Channel Car Amplifier Power Audio with Remote (2 Pack)

Boss Audio 1600 Watt 4 Channel Car Amplifier Power Audio with Remote (2 Pack)

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Boss Audio 1600 Watt 4 Channel Car Amplifier Power Audio with Remote (2 Pack)

Boss Audio 1600 Watt 4 Channel Car Amplifier Power Audio with Remote (2 Pack)

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply

6

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply

JL Audio Slash 300/4v3 (Open Box)

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

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JL Audio Slash 300/4v3 (Open Box)

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

3

• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

Boss Audio Riot R1004 400 Watt 4 Channel Car Power Amplifier Amp Mosfet (2 Pack)

Boss Audio Riot R1004 400 Watt 4 Channel Car Power Amplifier Amp Mosfet (2 Pack)

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Boss Audio Riot R1004 400 Watt 4 Channel Car Power Amplifier Amp Mosfet (2 Pack)

Boss Audio Riot R1004 400 Watt 4 Channel Car Power Amplifier Amp Mosfet (2 Pack)

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

15

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

JBL Marine MA6004 Amplifier + 4 Sony XS-MP1611 Speakers Kit

4-Channel + 2 Pairs of 6.5" Marine Speakers + Amplifier Wiring Kit

MA6004 XSMP1611 big DISCONTINUED
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JBL Marine MA6004 Amplifier + 4 Sony XS-MP1611 Speakers Kit

4-Channel + 2 Pairs of 6.5" Marine Speakers + Amplifier Wiring Kit

• 60W x 4-Chan. @ 4 Ohm
• 80W x 4-Chan. @ 2 Ohm
• 160W x 2 Chan. @ 4 Ohm
• 320W RMS
• MOSFET Power Supply
• Preamp RCA outputs
• Thermal, Voltage and Short Protection Circuitry

73

• 60W x 4-Chan. @ 4 Ohm
• 80W x 4-Chan. @ 2 Ohm
• 160W x 2 Chan. @ 4 Ohm
• 320W RMS
• MOSFET Power Supply
• Preamp RCA outputs
• Thermal, Voltage and Short Protection Circuitry

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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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