Garage
Shop

Discontinued Alpine 4-Channel Amplifiers

Drive multiple speakers with Alpine's versatile 4-channel amplifiers for rich sound.

Loading...
Filters

We are sorry, no available results!

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Alpine KTA-30FW

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

Go to item page Right Arrow Icon of Right Arrow

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

VIP Star Icon

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

Alpine MRP-F300

300W V-Power Series 4-Channel Class AB Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

300W V-Power Series 4-Channel Class AB Car Amplifier

• 50W x 4 chan. @ 4 ohm • 75W x 4 chan. @ 2 ohm • 150W x 4 chan. Max • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Non-Fading pre-amp output • Thermal management control • 4/3/2 Channel design

• 50W x 4 chan. @ 4 ohm • 75W x 4 chan. @ 2 ohm • 150W x 4 chan. Max • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Non-Fading pre-amp output • Thermal management control • 4/3/2 Channel design

Go to item page Right Arrow Icon of Right Arrow

55W RMS x 4 channel at 4 ohm • 65W RMS x 4 at 2 ohm • Bass Engine with variable high-pass/low-pass crossovers and subsonic filter • preamp outputs

55W RMS x 4 channel at 4 ohm • 65W RMS x 4 at 2 ohm • Bass Engine with variable high-pass/low-pass crossovers and subsonic filter • preamp outputs

Alpine MRV-F545

4-Channel High Power Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel High Power Amplifier

V12 4-Channel High Power Amplifier • 125W RMS x 4 @ 4 • 500W RMS x 1 Bridged (Chan 3/4) • Blue LCD Display • Amplifier Link • 1 Preamp Outputs • Bass Engine • Adjustable Crossover and Input Sensitivity

V12 4-Channel High Power Amplifier • 125W RMS x 4 @ 4 • 500W RMS x 1 Bridged (Chan 3/4) • Blue LCD Display • Amplifier Link • 1 Preamp Outputs • Bass Engine • Adjustable Crossover and Input Sensitivity

Go to item page Right Arrow Icon of Right Arrow

4/3/2 Channel operation • 90W Peak / 50W RMS x 4 channel (4 ohm) high power amplifier • 240W Peak / 120W RMS x 2 channel Bridged Power • adjustable high-pass/low-pass crossovers • preamp outputs • MOSFET power supply • STAR circuitry • bass engine ready 

4/3/2 Channel operation • 90W Peak / 50W RMS x 4 channel (4 ohm) high power amplifier • 240W Peak / 120W RMS x 2 channel Bridged Power • adjustable high-pass/low-pass crossovers • preamp outputs • MOSFET power supply • STAR circuitry • bass engine ready 

Alpine MRP-F450

4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel Amplifier

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

Alpine MRP-F250

4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel Amplifier

4-channel car amplifier • 40W RMS x 4 @ 4 ohm • 50W RMS x 4 @ 2 ohm • 100W RMS x 2 bridged output @ 4 ohm • CEA-2006 compliant • Gold-plated screw terminals

4-channel car amplifier • 40W RMS x 4 @ 4 ohm • 50W RMS x 4 @ 2 ohm • 100W RMS x 2 bridged output @ 4 ohm • CEA-2006 compliant • Gold-plated screw terminals

Alpine MRV-F345

4-Channel Class A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel Class A/B Amplifier

85 watts RMS x 4 at 2 ohm • BassEngine® with variable high-pass/low-pass crossovers and subsonic filter • Amp Link • preamp outputs

85 watts RMS x 4 at 2 ohm • BassEngine® with variable high-pass/low-pass crossovers and subsonic filter • Amp Link • preamp outputs

Alpine MRP-F550

500W RMS, 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

500W RMS, 4-Channel Amplifier

500 watts, 4-Channel Amplifier • RMS Power Output: 4 ohm: 90 watts x 4 / 125 watts x 4 • Frequency Response: 10 Hz - 50 kHz • MOSFET power supply • STAR Topology (minimizes internal noise and prevents ground interference) • Speaker and preamp-level inputs

500 watts, 4-Channel Amplifier • RMS Power Output: 4 ohm: 90 watts x 4 / 125 watts x 4 • Frequency Response: 10 Hz - 50 kHz • MOSFET power supply • STAR Topology (minimizes internal noise and prevents ground interference) • Speaker and preamp-level inputs

Go to item page Right Arrow Icon of Right Arrow

80W x 4 Car Amp • 100 watts RMS x 4 at 2 ohm • BassEngine® with variable high- and low-pass crossovers • preamp outputs

80W x 4 Car Amp • 100 watts RMS x 4 at 2 ohm • BassEngine® with variable high- and low-pass crossovers • preamp outputs

Go to item page Right Arrow Icon of Right Arrow

40W RMS x 4 Channel • 100 watts RMS x 2 bridged • Bass Engine with selectable low- and high-pass crossovers and tuned Bass EQ • preamp outputs

40W RMS x 4 Channel • 100 watts RMS x 2 bridged • Bass Engine with selectable low- and high-pass crossovers and tuned Bass EQ • preamp outputs

Alpine PDX-F4

400W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

400W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

• RMS Power: 100W x 4-Chan. @ 4 ohm
• 400 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

• RMS Power: 100W x 4-Chan. @ 4 ohm
• 400 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

Alpine MRX-F35

340W 4-Channel X Power Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

340W 4-Channel X Power Series Car Amplifier

• RMS Power: 55W x 4-Chan. @ 4 Ohm, 85W x 4-Chan. @ 2 Ohm
• Variable Low-Pass Crossover
• Variable High-Pass Crossover
• Variable Bass Boost

• RMS Power: 55W x 4-Chan. @ 4 Ohm, 85W x 4-Chan. @ 2 Ohm
• Variable Low-Pass Crossover
• Variable High-Pass Crossover
• Variable Bass Boost

Alpine KTP-445

Plug and Play Head Unit Power Pack for Use with all 2005-Up Alpine Head Units (Black Harness)

Go to item page Right Arrow Icon of Right Arrow

Plug and Play Head Unit Power Pack for Use with all 2005-Up Alpine Head Units (Black Harness)

Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers • 45W x 4 Chan. @ 4 Ohm • Adjustable Gain Switch • Plug-and-Play • CEA-2006 Compliant

Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers • 45W x 4 Chan. @ 4 Ohm • Adjustable Gain Switch • Plug-and-Play • CEA-2006 Compliant

Alpine PDX-4.100

4-Channel Power Density Digital Amplifier (PDX4.100)

Go to item page Right Arrow Icon of Right Arrow

4-Channel Power Density Digital Amplifier (PDX4.100)

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

Alpine PDR-F50 4 Channel 500 Watt RMS Class D Car Amplifier+Premium Amp Kit

500W PDR Series 4/3/2 Channel Class D Digital Amplifier Package

Go to item page Right Arrow Icon of Right Arrow

500W PDR Series 4/3/2 Channel Class D Digital Amplifier Package

• RMS Power: 85W x 4 @ 4 ohm, 125W x 2 @ 2 ohm, 250W x 2 @ 4 ohm, Bridged
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• Dimensions: 9"W x 6.5"L x 2.0"H

• RMS Power: 85W x 4 @ 4 ohm, 125W x 2 @ 2 ohm, 250W x 2 @ 4 ohm, Bridged
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• Dimensions: 9"W x 6.5"L x 2.0"H

Alpine 600W Amplifier + (4) MTX Terminator 5.25" Speakers + Belva Amp Kit

Alpine BBXF1200 4 Channel Amplifier + (4) MTX Terminator Component Speakers + Bak42bk (Black)

Go to item page Right Arrow Icon of Right Arrow

Alpine BBXF1200 4 Channel Amplifier + (4) MTX Terminator Component Speakers + Bak42bk (Black)

• 50 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 600 Watts
• High and Low Pass Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 9.4" W x 12.9" L x 2" H

• 50 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 600 Watts
• High and Low Pass Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 9.4" W x 12.9" L x 2" H

Alpine PDX-F6

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

Go to item page Right Arrow Icon of Right Arrow

50W x 4 + 200W x1 Car Amp • 60 watts RMS x 4 at 2 ohm + 200 watts RMS x 1 at 4 ohm • BassEngine® with variable high-pass/low-pass crossovers, subsonic filter on the sub channel, and a tuned Bass EQ

50W x 4 + 200W x1 Car Amp • 60 watts RMS x 4 at 2 ohm + 200 watts RMS x 1 at 4 ohm • BassEngine® with variable high-pass/low-pass crossovers, subsonic filter on the sub channel, and a tuned Bass EQ

EXCLUSIVE

Alpine SPS-610C SPS-610 6.5" 2-Way Type-S Speakers + NVX MVPA4 + Amp Wiring Kit

Alpine SPS Type-S Component & Coaxial Speakers + NVX 4-Channel Class D Amplifier w/ Amp Wiring Kit

Go to item page Right Arrow Icon of Right Arrow

Alpine SPS Type-S Component & Coaxial Speakers + NVX 4-Channel Class D Amplifier w/ Amp Wiring Kit

• 50W x 4-Chan. @ 4 ohm
• 1" Silk Dome Tweeter
• Tuned Poly-Mica Cone
• 4 Ohm Impedance
• 3-Way System Protection
• Extremely Small Footprint!
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

• 50W x 4-Chan. @ 4 ohm
• 1" Silk Dome Tweeter
• Tuned Poly-Mica Cone
• 4 Ohm Impedance
• 3-Way System Protection
• Extremely Small Footprint!
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

Items per page: 20 40 60

    Clear all

    Alpine 4-Channel Amplifiers Information

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

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2012 Honda Pilot

    1991 Mitsubishi Eclipse

    2015 Dodge Ram ProMaster 1500

    2001 Volvo S60

    2007 GMC Envoy

    2004 Jeep Wrangler

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This page was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.