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Best 4-Channel Amp for Harley-Davidson (Reviews)

Nothing makes a motorcycle sound as awesome as an amplifier. 

Best-4-Channel-Amp-for-Harley-Davidson
Best 4-Channel Amp for Harley-Davidson

If you’re thinking about getting the best 4 channel Amp for Harley-Davidson, you need to know the different types available along with the different prices. There are some inexpensive amps that you can buy that won’t have as much power as a more expensive one.

However, all amps are not created equally. Some amps will give you a wonderful sound, but may not work perfectly with your Harley.

Some people want more power and better reliability. Others want something that will allow them to travel longer distances. Regardless of the reason, it’s important to choose the right type of amplifier for your harley davidson.

To save your time and efforts our team did a research to pick the top eight of the Best 4 channel Amp for your Harley-Davidson.

So, without further ado let’s find out the best amplifier for your dream bike.

1. Rockford Fosgate R2-500X4 500-Watt 4-Channel Amplifier

Rockford Fosgate R2-500X4 500-Watt 4-Channel Amplifier

Rockford Fosgate R2-500X4 500-Watt 4-Channel Amplifier

Features:
  • The R2-500X4 full-range class-D 4-channel amplifier (1.9″ x 6.8″ x 10.1″) is packed with features and performance to deliver power and bass on demand with 500 Watts of RMS power
  • Class D technology makes this amp extremely efficient by reducing demand on the vehicles electrical system (RMS Power: 75 Watts x 4 @ 4Ω OR 155 Watts x 4 @ 2Ω OR 250 Watts x 2 @ 4Ω Bridged/Mono)
  • Featuring C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass
  • Featuring fully adjustable 12 dB/octave high and low pass butterworth crossovers, balanced differential inputs with RCA pass through outputs, high level input capable, defeat able auto turn on circuit and top mounted controls
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller

 

The 1st Best 4-Channel Amp for Harley-Davidson in our list is the Rockford Fosgate R2 series.

The Rockford Fosgate R2 series is a full-range class-D 4-channel amplifier that delivers power and bass on demand. With 500 Watts of RMS power, this amp can handle any sound you throw at it. 

Class D technology makes the R2-500X4 extremely efficient, while the C.L.E.A.N circuitry helps you adjust your gain settings easily. The P.O.W.E.R Supply generates more power as voltage increases, and the integrated Punch EQ corrects for acoustic deficiencies – giving you up to 3X bass!

These amps were designed specifically for audio fanatics, and they deliver everything you’d expect from a Rockford Fosgate product – plus more. Plus, because they’re so easy to set up and configure, they’re perfect for use with factory audio or custom aftermarket systems. 

This 4-channel amplifier is perfect for anyone looking to beef up their factory audio system or add some power to a custom aftermarket setup. Plus, with its simple setup and configuration, it’s perfect for beginners and experts alike. So what are you waiting for? Add the Rockford Fosgate Prime R2-500X4 to your shopping cart today!

2. Kenwood KAC-M1814 

Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier

Kenwood KAC-M1814 4-Channel Compact Bridgeable Marine/Motorsports 400W Max Power Digital Amplifier

Features:
  • Digital Amplifier Technology
  • Speaker Level Input w/ Signal Sensing Turn-on
  • 2 Ohms Load Capability
  • Power MOS-FET Switching Power Supply
  • 1m (3.3ft) RCA Cable

 

The Second Best 4-Channel Amp for Harley-Davidson in our list is the Kenwood KAC-M1814 .

Bring your music to life with the Kenwood KAC-M1814 4-channel amplifier! This powerful amp provides 45 watts RMS per channel, more than doubling the power of most Harley stereos

The KAC-M1814 is also marine rated, featuring plastic covers to protect its connections and a conformal-coated circuit board that keeps out moisture and salt. Whether you’re on land or water, this amp will pump up your audio system and keep the party going!

 This quality amplifier is designed to improve sound quality, with pre-amp and power-amp sections separated to reduce radiation noise. Plus, the plastic-covered connector helps keep out water and dust, while conformal coating provides vibration resistance. Installation is a breeze – just plug it in and you’re good to go!

So whether you’re riding down the street or cruising on the open road, you’ll enjoy crystal-clear sound with this Kenwood amplifier!

3. Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier

Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier

Rockford Fosgate PBR300X4 Punch 300 Watt 4 Channel Boosted Rail Amplifier

Features:
  • Our ultra-compact (1.53” x 4.25” x 6.75”) Punch PBR300X4 is a full-range 4-channel amplifier designed for stereo front/rear systems that packs a Punch with 300 Watts of power without sucking a lot of juice from your electrical system
  • Designed to be compact and efficient while providing big power – RMS Power Output: 75 Watts x 4 @ 4-Ohm (4-Ohm only)
  • Featuring our Class BR, Rockford Fosgate’s patented Boosted Rail technology that sips current while retaining a storage reserve for extended bursts of power. Perfect for smaller stealth installations, motorcycles and recreational vehicles
  • Featuring high level inputs, MOSFET output stage, variable 4-6 volt hi level DC offset voltage input turn-on control, and 12dB/octave Butterworth crossover
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller

 

The 3rd Best 4-Channel Amp for Harley-Davidson in our list is the Rockford Fosgate PBR300X4 .

The Rockford Fosgate PBR300X4 amplifier is perfect for smaller installations, motorcycles, and recreational vehicles. This full-range 4-channel amp packs a Punch with 300 Watts of power without sucking a lot of juice from your electrical system. 

Featuring our Class BR, Rockford Fosgate’s patented Boosted Rail technology that sips current while retaining a storage reserve for extended bursts of power, the PBR300X4 is ultra-compact and efficient.

This amazing amplifier can accept both speaker level and RCA level signal types, making it perfect for a variety of installations. 

Whether you’re looking to upgrade your OEM system or add some power to your aftermarket setup, the PBR300X4 is up for the task. So give your ride the boost it deserves with the Punch 300 watt 4 channel boosted rail amplifier from Rockford Fosgate.

4. Kenwood KAC-M1804 Compact 4-Channel Amplifier

Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier

Kenwood 2156568 KAC-M1804 Compact 4-Channel Amplifier

Features:
  • Kac-m1804 – Kenwood 4-channel 400w class d compact digital car amplifier
  • Rms power rating: 4 ohms: 45 watts x 4 Chan, max power output: 400 watts
  • Conformal coated circuit board suitable for marine applications
  • Extruded aluminum heat sink design

 

The 4th Best 4-Channel Amp for Harley-Davidson in our list is the Kenwood KAC-M1804.

The Kenwood KAC-M1804 Compact 4-Channel Amplifier is perfect for anyone who wants an amplifier that is both powerful and compact. This amplifier has 45 watts RMS per channel, making it one of the most powerful compact amplifiers on the market. Additionally, its extruded aluminum heat sink design and conformal coated circuit board makes it perfect for marine applications.

This powerful little amp uses plastic covers to protect its connections from moisture and salt, while a conformal coated circuit board keeps it running smoothly even in damp environments.

Plus, with RCA inputs and speaker-level inputs, it’s compatible with almost any system. The KAC-M1804 also features an automatic on function – so you don’t need to worry about installing a separate remote turn-on wire. And last but not least, it’s non-bridgeable and 4 ohm stable per channel, making it perfect for any occasion.

So if you’re looking for an app that can handle any kind of driving situation, the KAC-M1804 is worth checking out.

5. Kenwood KAC-M3004 Compact 4 Channel Digital Amplifier

Kenwood KAC-M3004 Compact 4 Channel Digital Amplifier

Kenwood KAC-M3004 Compact 4 Channel Digital Amplifier

Features:
  • Rms power
  • 4o: 50 watts x 4
  • 2o: 75 watts x 4
  • Peak power: 600 watts
  • Signal sensing turn-on

 

The 4th Best 4-Channel Amp for Harley-Davidson in our list is the Kenwood KAC-M3004.

Kenwood’s KAC-M3004 digital amplifier is a powerful little powerhouse that will add some serious sound to your vehicle. With 50 watts of RMS power per channel, this amp can handle anything from long road trips to weekend getaways off the beaten path. 

It’s also incredibly compact and fits just about anywhere, making it perfect for installation on boats, motorcycles, or ATVs. And if you’re looking to power a couple of subs, no problem – the KAC-M3004 can be bridged to 2-channel mode and send 150 watts to each one. Crank up the tunes with Kenwood!

The Kenwood KAC-M3004 amplifier is perfect for anyone looking to add some serious power to their car stereo system. This amp has plenty of juice to push your sound waves, making it a great choice for anyone who wants to boost their music’s volume and clarity. Thanks to its high-level inputs, the KAC-M3004 is easy to install, even if you’re not a car audio expert.

The KAC-M3004 features a conformal coating on the circuit board to protect it from moisture, making it ideal for use in any weather condition. 

Plus, with 50 watts RMS x 4 channels at 4 ohms or 75 watts RMS x 4 at 2 ohms, this amp will deliver powerful sound and clarity in any situation.

This amplifier is designed to give you the power and control you need for a great sound. The screw terminals make it easy to connect your power, ground, and power control wires. And if you’re using speaker level inputs, the Power Control wire can be connected to the head unit’s remote turn-on lead. There are also two pairs of RCA inputs for connecting stereo RCA patch cables from the head unit to the amp.

6. Soundstream 1000W 4-Channel Picasso Nano Series Class D Amplifier

Soundstream PN4.1000D 1000W 4-Channel Picasso Nano Series Class D Amplifier

Soundstream PN4.1000D 1000W 4-Channel Picasso Nano Series Class D Amplifier

Features:
  • Picasso Nano Series 4-Channel Class D Car Amplifier
  • RMS Power Rating: 4 ohms: 140 watts x 4 chan. / 2 ohms: 250 watts x 4 chan.
  • Max power output: 500 watts
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Pulse Width Modulated MOSFET power supply.200mv-6V Low Level Input Sensitivity

 

This Class D amplifier is designed to be compact and powerful, making it the perfect choice for any vehicle. With Soundstream’s Picasso Nano Amplifier, you’ll get high-quality sound without taking up too much space. 

Plus, this amp is easy to install and fits into any car – big or small. crank up the tunes and enjoy your music loud and clear!

The Soundstream Class D Amplifier is perfect for anyone looking for an amplifier that doesn’t get heated up quickly. The full-range crossovers mean you won’t experience any sound distortion, even when the volume is turned up to the max.

This amplifier has an RMS Power Rating of 4 ohms: 140 watts x 4 chans. / 2 ohms: 250 watts x 4 chans., making it capable of powering up to four speakers. 

It also features 3-way protection circuitry (thermal, overload, and speaker short protection) and a Pulse Width Modulated MOSFET power supply, ensuring your equipment stays safe and your music sounds great.

7. Wild Boar Audio WBA 300 (2 Channel Amp)

The Last and the Best 4-Channel Amp for Harley-Davidson is the Wild Boar Audio WBA 300.

This amplifier is specifically designed to work with the factory Harley-Davidson radios in 2014+ touring models. It includes easy to install mounting plates and reduced EMI technology (R.E.M.I.T.) for superb FM reception. At 300 watts, it’s perfect for powering aftermarket speakers or a subwoofer on your bike.

The Wild Boar Audio WBA 300 is the perfect amplifier for your Harley Davidson. It’s designed specifically to work with factory HD radios, and there are no crossover, gain, or EQ adjustments to make installation easy. 

The amp is also designed around a small factory charging system, so you don’t have to worry about it draining your battery. Plus, it’s 100% plug-and-play! You don’t even need additional wiring. 

The discreet surface mount technology ensures a sleek look that will complement your bike’s style, and the DC sensing turns the lamp on and off without any extra effort on your part. Best of all, you may require an OEM or Techno Research dealer radio to use this product.

Conclusion 

As with most motorcycle accessories, there are a lot of options to choose from. We decided that the best 4 channel amp for Harley-Davidson is the Rockford Fosgate R2-500X4 Prime Amplifier. It has all of the features you need in an amplifier and it’s affordable enough so you won’t have buyers remorse when your new Harley arrives!

Have you found what you’re looking for? If not, let us know!