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Memphis Marine 16-MA3004

460W RMS, 4-Channel Marine MClass Amplifier

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460W RMS, 4-Channel Marine MClass Amplifier

Memphis Marine Series 4-Channel Class AB Marine Amplifier • 75W x 4 chan. @ 4 ohm • 115W x 4 chan. @ 2 ohm • 300W x 4 chan. Max • MOSFET power supply • Conformal circuit board coating for anti-corrosion protection

Memphis Marine Series 4-Channel Class AB Marine Amplifier • 75W x 4 chan. @ 4 ohm • 115W x 4 chan. @ 2 ohm • 300W x 4 chan. Max • MOSFET power supply • Conformal circuit board coating for anti-corrosion protection

Polk Audio Package: Pair of db651 Speakers + PA200.4 Amp

2) sets of 6.5" / 6.75" 2-Way Marine Grade db Series Coaxial Speakers + Polk Audio PA200.4 320W Max PA Series 4-Channel Amplifier

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2) sets of 6.5" / 6.75" 2-Way Marine Grade db Series Coaxial Speakers + Polk Audio PA200.4 320W Max PA Series 4-Channel Amplifier

• Peak Power: 720W
• RMS Power: 240W
• 3/4" Liquid-Cooled Silk/Polymer Composite Dome Tweeter
• Mounting Depth: 2-5/16"
• PA Series 4-Channel Class AB Car Amplifier
• 35W x 4 chan. @ 4 ohm
• 50W x 4 chan. @ 2 ohm
• 100W x 2 chan. @ 4 ohm

• Peak Power: 720W
• RMS Power: 240W
• 3/4" Liquid-Cooled Silk/Polymer Composite Dome Tweeter
• Mounting Depth: 2-5/16"
• PA Series 4-Channel Class AB Car Amplifier
• 35W x 4 chan. @ 4 ohm
• 50W x 4 chan. @ 2 ohm
• 100W x 2 chan. @ 4 ohm

Sound Storm SSL F4.800 R/B

800W Max, 4-Channel Amplifier

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800W Max, 4-Channel Amplifier

Force Series 4-Channel Class A/B Amplifier • 85 Watts x 4 Chan @ 4 Ohm • Line and Speaker-Level Inputs • 800 Watts Max • Chrome-Plated RCA Level Inputs And Screw Terminals • LED Power And Protect Indicators

Force Series 4-Channel Class A/B Amplifier • 85 Watts x 4 Chan @ 4 Ohm • Line and Speaker-Level Inputs • 800 Watts Max • Chrome-Plated RCA Level Inputs And Screw Terminals • LED Power And Protect Indicators

Crunch PZX900.4 (Factory Refurbished)

900W 4-Channel Powerzone Series Class AB Car Amplifier

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900W 4-Channel Powerzone Series Class AB Car Amplifier

• Max Power: 115W x 4 @ 4 ohm, 225W x 4 @ 2 ohm, 450W x 2 @ 4 ohm Mono Bridged
• Total Peak Power: 900W
• Rugged MOSFET Pulse Width Modulation Power Supply
• Speaker-level (high-level) inputs
• Preamp RCA outputs to daisy chain multiple amps
• Frequency Response: 10 - 45,000 Hz

• Max Power: 115W x 4 @ 4 ohm, 225W x 4 @ 2 ohm, 450W x 2 @ 4 ohm Mono Bridged
• Total Peak Power: 900W
• Rugged MOSFET Pulse Width Modulation Power Supply
• Speaker-level (high-level) inputs
• Preamp RCA outputs to daisy chain multiple amps
• Frequency Response: 10 - 45,000 Hz

MB Quart OA800.4 (Factory Refurbished)

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

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

• 100W x 4-Chan. @ 4 ohm
• 200W x 4-Chan. @ 2 ohm
• 400W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

• 100W x 4-Chan. @ 4 ohm
• 200W x 4-Chan. @ 2 ohm
• 400W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

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45W x 4, Detachable Face, CD Changer Control

45W x 4, Detachable Face, CD Changer Control

Sony XM-GS400 with $200 eGift Card

$200 eGift Card Included! 320W 4-Channel GS Series Compact Car Amplifier

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$200 eGift Card Included! 320W 4-Channel GS Series Compact Car Amplifier

• 4 ohm: 70 watts x 4-Chan.
• 2 ohm: 80 watts x 4-Chan.
• Bridged, 4 ohm: 160 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED Power (green) and Protect (red) Indicators

• 4 ohm: 70 watts x 4-Chan.
• 2 ohm: 80 watts x 4-Chan.
• Bridged, 4 ohm: 160 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED Power (green) and Protect (red) Indicators

Alpine MRP-F450 Factory R/B

REFURBISHED UNIT MISSING BOX AND ENDCAPS

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REFURBISHED UNIT MISSING BOX AND ENDCAPS

4-channel car amplifier • 70W RMS x 4 @ 4 ohm • 100W RMS x 4 @ 2 ohm • 200W RMS x 2 bridged output @ 4 ohm • Gold-plated screw terminals

4-channel car amplifier • 70W RMS x 4 @ 4 ohm • 100W RMS x 4 @ 2 ohm • 200W RMS x 2 bridged output @ 4 ohm • Gold-plated screw terminals

Clarion NX706 High Resolution Car Stereo with XM-GS4 4-Channel Amplifier

NX706 Navigation 7" Touch Screen Full Digital Sound Compatible Car Stereo + XM-GS4 700W Max Hi-Resolution Audio Compatible 4-Ch Amplifier

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NX706 Navigation 7" Touch Screen Full Digital Sound Compatible Car Stereo + XM-GS4 700W Max Hi-Resolution Audio Compatible 4-Ch Amplifier

• Compatible with Clarion's new Full Digital Sound components system
• 15-band parametric equalizer
• 96kHz audio support
• On-board GPS Navigation
• CEA-2006 Compliant Amplifier
• Ultra-wide frequency range that extends up to 100 kHz

• Compatible with Clarion's new Full Digital Sound components system
• 15-band parametric equalizer
• 96kHz audio support
• On-board GPS Navigation
• CEA-2006 Compliant Amplifier
• Ultra-wide frequency range that extends up to 100 kHz

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75W RMS x 4 at 4 ohm • 300W RMS x 2 in bridged mode • 150W RMS x 4 at 2 ohm • Requires 4 Gauge Wiring • 2 ohm mono stable • Remote Gain Control

75W RMS x 4 at 4 ohm • 300W RMS x 2 in bridged mode • 150W RMS x 4 at 2 ohm • Requires 4 Gauge Wiring • 2 ohm mono stable • Remote Gain Control

Crunch PZ900.4 (Factory Refurbished)

900W PowerZone Series 4-Channel Car Audio Amplifier

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900W PowerZone Series 4-Channel Car Audio Amplifier

• 900 Watts Max
• 225 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

• 900 Watts Max
• 225 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

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Detachable full flap face • 45W x 4 Power Output • wireless remote control • Alphatuner V

Detachable full flap face • 45W x 4 Power Output • wireless remote control • Alphatuner V

EXCLUSIVE

Hifonics + Crossfire Amplifier Bundle

6-1/2" Hifonics ZXi6.5C ZXI Series Speakers + BMF600.4 4-Channel Amplifier + Kit + Sound Dampening

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6-1/2" Hifonics ZXi6.5C ZXI Series Speakers + BMF600.4 4-Channel Amplifier + Kit + Sound Dampening

6-1/2" Zeus ZXI Series Component System • 1000W Max • 200W RMS • BMF Series 4-Channel Class A/B Car Amplifier • MOSFET Power Supply • 5-Way System Protection Circuitry • Amplifier Kit • Sound Dampening Material

6-1/2" Zeus ZXI Series Component System • 1000W Max • 200W RMS • BMF Series 4-Channel Class A/B Car Amplifier • MOSFET Power Supply • 5-Way System Protection Circuitry • Amplifier Kit • Sound Dampening Material

Massive Audio PX4S (Like New (Open Box))

960W RMS Class D PRIMO Series 4 Channel Car Amplifier

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960W RMS Class D PRIMO Series 4 Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Soundstream PCA4.400 R/B

400W RMS, 4-Channel Picasso Series Amplifier

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400W RMS, 4-Channel Picasso Series Amplifier

4-Channel Picasso Series Amplifier • 40W RMS x 4 @ 4 • 130W RMS x 2 Bridged • High & Low Inputs • Line Out • PWM MOSFET Circutry • Tri-Guard • Tri-Mode Operation • Phase Inversion Switch

4-Channel Picasso Series Amplifier • 40W RMS x 4 @ 4 • 130W RMS x 2 Bridged • High & Low Inputs • Line Out • PWM MOSFET Circutry • Tri-Guard • Tri-Mode Operation • Phase Inversion Switch

Massive Audio D 8004 Open Box

Open Box 960W Max, 4 Channel D Block Series Car Amplifier

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Open Box 960W Max, 4 Channel D Block Series Car Amplifier

Massive Audio 800.4 D Block Series 4-Channel Car Amplifier • 960 Watts Max • 480 Watts RMS • MOSFET power Supply • Brushed Aluminum "finless" Heat Sink • 6-Way Protection Circuitry

Massive Audio 800.4 D Block Series 4-Channel Car Amplifier • 960 Watts Max • 480 Watts RMS • MOSFET power Supply • Brushed Aluminum "finless" Heat Sink • 6-Way Protection Circuitry

Power Acoustik SL4-1000 R/B

1000W Max, 4-Channel Amplifier

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1000W Max, 4-Channel Amplifier

1000W Max, 4-Channel Amplifier • RCA input & output • 2 ohm STERO / 4 ohm MONO • P.W.M MOSFET power supply • oft Delayed remote turn-on • Color indicator L.E.D • Phantom Channel for power center speaker or subwoofer

1000W Max, 4-Channel Amplifier • RCA input & output • 2 ohm STERO / 4 ohm MONO • P.W.M MOSFET power supply • oft Delayed remote turn-on • Color indicator L.E.D • Phantom Channel for power center speaker or subwoofer

RE Audio DTS-500.4 R/B

400W, 4-Channel Class A/B DTS Series Car Amplifier

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400W, 4-Channel Class A/B DTS Series Car Amplifier

DTS Series 4-Channel Class A/B Car Amplifier • 400W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

DTS Series 4-Channel Class A/B Car Amplifier • 400W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

Hifonics ZRX1000.4 (Factory Refurbished)

1000W 4-Channel Class A/B Zeus Series Car Amplifier

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1000W 4-Channel Class A/B Zeus Series Car Amplifier

Item Condition: Factory Refurbished
• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Pulse Width Modulated MOSFET Power Supply
• CEA-2006 Compliant Amplifier

Item Condition: Factory Refurbished
• 4 ohm: 125 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Pulse Width Modulated MOSFET Power Supply
• CEA-2006 Compliant Amplifier

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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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