Top 7 Best 6 Channel Amplifier for Your Car

In a nutshell, a car amplifier’s purpose is to add volume to your car’s stereo system.   

By boosting small audio signals to higher voltages, the right car amplifier allows you to enjoy fuller and louder audio while on the road. A six-channel amplifier, however, is something that’s beyond the needs of most casual drivers. But, then again, you wouldn’t be reading this if you weren’t looking for more, weren’t you?  

Capable of basically powering a channel more than a five-channel amplifier, and two more channels than a four-channel amplifier, a six-channel amplifier will add significant volume to your car’s stereo set-up.   

Unfortunately, choosing a six-channel amplifier is much easier said than done.   

This is what we’re here to help with.   

Below, you’ll find our picks for the 7 Best 6 channel amplifiers, check them out! 

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

The JL Audio XD600/6 is a class-D amplifier that uses a kind of switching technology known as NexD that lets it deliver clear audio without sacrificing efficiency. In addition to this, the XD600/6 is extremely versatile. You can use it in conjunction with all kinds of source units, as well as a variety of configurations.   

The versatility of the XD600/6 is worth pointing it because it’s what allows it to deliver 100 watts into each one of its six channels.  

JL Audio XD600/6

As a six-channel amplifier, you can use it with 75 W x 6 at 4 ohms, or bridge four channels to stagger power and use it as a four-channel amplifier with 200 W x 4 ohms (front) on top of 7 W x 2 4 ohms (rear). You can also use it with two saddles of 75W each and two subs with 200 W each.   

The “differential-balanced” inputs feature also comes in handy as it prevents outside noise from interfering with the signal on the inside. At the same time, it is this feature that lets you connect the XD600/6 to a factory dash stereo unit without preamp outputs. Also, if you want to tweak the amplifier in a convenient manner, you can add in an optional wired remote feature.   

Backed by a 1-year warranty, the JL Audio XD600/6 is a worthy investment for a budding car audio enthusiast.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Compact design 
  • Commendable build quality fitted with high-quality internal components with an attractive black styling 
  • Audio nor power delivery doesn’t suffer when pushed to the maximum 

CONS

  • Built-in crossovers could do with some more flexibility 

Technically, the ​MB Quart NA540.6 Nautic Amplifier wasn’t built specifically for land use. Its main purpose was to be an amplifier for boats, or, to be more specific, bigger boats like yachts.

However, there’s really stopping anyone from using them in their trucks and SUVs, which definitely isn’t a bad idea all things considered.   

MB Quart NA540.6 Nautic Amplifier

What makes this 6-channel amplifier even more special is that the American Boat and Yacht Council (ABYC) specifically built it to meet the standards set by the organization in regards to marine electronics. In addition to this, the ABYC also made sure that this amplifier meets the standards of the American Society for Testing and Materials as well.   

To say that this 6-channel amplifier is built to last is only fitting.   

But, then again, what good is a 6-channel amplifier if it’s merely durable and not a good performer?  

To that end, the ​MB Quart NA540.6 Nautic Amplifier delivers, and then some.   

Coming at an attractive price point, the main draw of this amplifier is its crossover. This is primarily because of how you can choose to individually tweak each channel to suit however your audio system is setup for the best possible sound quality. Also, this amplifier is pretty much as plug-and-play as any best 6 channel amplifier can be.   

Once you’re finished setting it up, you can enjoy music that’s loud and clear enough to drown out even a boat engine. 

PROS

  • Attractive price point 
  • Built to high marine-grade standards 
  • Resistant to harsh weather elements 

CONS

  • Large and bulky design makes it a difficult fit for smaller vehicles

Six-channel amplifiers are usually big, bulky, and powerful. They aren’t always equipped with the latest features. But, for the ​Lanzar HTG668BT, it has the distinction of being one of the few amplifiers on the market, let alone 6-channel amplifiers, that has Bluetooth.   

Yes, you read that right.   

Lanzar HTG668BT

The same technology used mostly in head units finds its way in this powerful six-channel amplifier.   

With this functionality, you can install the ​Lanzar HTG668BT on your car or truck and stream music straight to the amplifier.   

But, that’s not all that's great about this six-channel amplifier.   

What’s also great about the ​Lanzar HTG668BT is that you can stream directly from the internet via Spotify or Pandora.   

When you consider the fair pricing of the ​Lanzar HTG668BT, it’s hard to find any faults with it.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Designed with modern conveniences like Bluetooth functionality in mind
  • Affordable 

CONS

  • Design is rather long and tricky to fit inside vehicles if you don’t know what you are doing 

Don’t let the good looks fool you. The Pyle PLMRA630BT was built to take a beating.   

Built to meet marine standards, the PLMRA630BT combines high powered performance with efficiency and reliability in any kind of weather. Mind you, this six-channel amplifier isn’t just water-resistant -- it’s waterproof.   

Performance-wise, the PLMRA630BT doesn’t lag behind either. You can bridge it with multiple channels.   

Pyle PLMRA630BT

Also, unlike other six-channel amplifiers, the PLMRA630BT was built with the modern consumer in mind. It’s one of the rare amplifiers that have Bluetooth functionality, which means that you can use it with your smartphone and/or tablet.  

As icing on top of the proverbial cake, the PLMRA630BT uses a heavy-duty aluminium alloy heat-sink. This allows for better heat dissipation, especially during prolonged use.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Waterproof and built to meet marine-grade standards 
  • Bluetooth functionality 
  • Improved heat dissipation due to heavy-duty aluminium alloy heatsink 

CONS

  • The amplifier has a tendency to draw more power than specified 

If there’s one company whose products deserve the benefit of the doubt based on the brand’s strength and history alone, it’s Sony.   

The Sony XM-GS6DSP is no exception.   

A six-channel amplifier, the XM-GS6DSP straddles between the line of budget-range and high-end amplifiers, but performs more like the latter. Although it’s not the most powerful amplifier out there, it’s plenty capable. This includes being capable of delivering as much as 600 watts RMS to a subwoofer.   

Sony XM-GS6DSP

The XM-GS6DSP also has other uses, including using the onboard crossover and bandpass filters to drive two tweeters of 45 watts each, a pair of 45-watt mid range drivers or speakers, and that’s on top of subwoofers with 90 watts of power individually.   

The Sony XM-GS6DSP also lets you stream music directly to the amplifier via its Bluetooth feature. In addition to this, the XM-GS6DSP is compatible with the music center app of Sony so you can pair your smartphone with it and use it to adjust everything from the 10-band EQ and fader controls, volume levels, time alignment, balance, and more.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Bluetooth functionality with Sony Music Center App 
  • Relatively small chassis makes for easy installation 
  • Three-way electronic crossovers 
  • Commendable subwoofer power 

CONS

  • Lacks weatherproofing and waterproofing 

Another company with a reputation for manufacturing quality audio products, the ​Kenwood Excelon XR600-DSP is easy to recommend.   

This six-channel amplifier uses the best digital signal processing capabilities that Kenwood has to offer. It then marries a litany of features with a small and compact casing that’s only 2 inches tall, allowing the XR600-DSP to fit inside even some of the most cramped spaces and installations.   

Kenwood Excelon XR600-DSP

What makes the XR600-DSP is the lack of physical knobs or buttons.  

This is a turn-off to some, but a boon to others.   

Utilizing software-based controls, users can only access the XR600-DSP via the proprietary DSP control app that’s available on either the Play Store (Android) and App Store (iOS). But, while this might not seem advantageous, having total full control over an amplifier using a smartphone is great because it makes it easy to tweak the sound, even when on the go.   

The XR600-DSP can also be used to power a variety of configurations, making it an excellent choice for both beginners and hardcore enthusiasts alike.   

The only downside is that the XR600-DSP won’t work as a stand-alone amplifier.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Uses convenient software-based controls via the DSP control app for easy customization while on the go 
  • Only two inches tall 
  • Outstanding build quality that should guarantee for it last for years 

CONS

  • Has to be used with the iDatalink module and harness 
  • Lacks physical buttons and/or knobs 

Last but certainly not the least, the Focal FDP 6.900 is what we’d recommend for people with some serious money to throw around.   

Costing very well enough for an entire audio system makes up for its high asking price with a class D technology to pack some serious power output inside a chassis that’s easily one of the smallest on our list.   

Focal FDP 6.900

The FDP 6.900 can deliver as much as 150 watts RMS to  each individual speaker up to six and it can be configured to drive only four speakers at 15 watts RMS each while also bridging the last two channels to deliver up to 600 watts RMS to the subwoofer. In addition to this, there are other bridging options available.   

The FDP 6.900 also comes with speaker-level inputs, as well as an automatic turn-on, and a filler section that makes it convenient to optimize the amplifier for your speakers and/or subwoofers.   

Lastly, the FDP 6.900 comes packaged with a wired remote bass level control knob.   

Although this might not be as fancy as other amplifiers that allow for smartphone controls, the knob does make it easy to adjust bass levels directly from the driver’s seat.  

Pioneer AVH 4100NEX Car Stereo Receiver

Pioneer AVH-4100NEX

$309.95

Kenwood KDC-BT958HD Car Stereo Head Unit

Kenwood KDC-BT958HD

$269.99

Boss Audio BV9364B Double DIN Head Unit

Boss Audio BV9364B

$94.99

Pioneer DEH-150MP Single DIN Head Unit

Pioneer DEH-150MP

$79.95

Pioneer FH-X820BS Car Stereo Receiver

Pioneer FH-X820BS

$159.95

PROS

  • Utilizes class D technology 
  • Compact and slim design 
  • Wired remote bass level control knob comes with a LED clip light that lets you know if and when you’re driving the amplifier too hard 

CONS

  • Expensive 

Final Thoughts

Best 6 channel amplifiers are some of the best that money can buy.   

The six we listed above, specifically, will get you your money’s worth, and then some.   

But, before anything else, make sure that you ask for professional help when installing these best 6 channel amplifiers. You’ll need to make sure that you picked out the right wire gauges, as well as have enough power on your car to support your entire set-up. Also, don’t forget to tune your stereo system once the amplifiers are installed to minimize any chances of blown or shorted fuses.