The 8 Best Car Amplifiers With Bluetooth

Updated by Ezvid Wiki Admin · How we research

Illustration of the 5 Bluetooth car amplifiers to scale, next to a phone pairing over Bluetooth, a car speaker and an amp wiring kit for size

For motorcycles, UTVs, boats and older cars: eight Bluetooth car amps compared on real power, sealing and controls. The Kenwood KAC-M5024BT comes first. When users buy our independently chosen editorial selections, we may earn commissions to help fund the Wiki.

The big wattage figure on most amp boxes is a peak claim, and few makers publish a CTA-2006 rating, so compare the smaller per-channel RMS number. A car amplifier with Bluetooth streams music from your phone straight to your speakers, with no head unit in between. Riders, boaters, golf cart and UTV owners, and people with classic cars use them most.

1. Kenwood KAC-M5024BT

2. Rockville ATV420 V2

3. Rockville PS20

4. Velex VX505

5. DS18 NXL-N4BT

6. Stetsom HL DSPlayer 400.4

7. Rockville Atom P20

8. Rockville RXM8BTW

Editor's Notes

October 15, 2026, by Ezvid Wiki Admin:

Most people who land here want to play music from a phone on a bike, boat, UTV or old car with no stereo in the dash, so we rebuilt the list around amps with Bluetooth built in. The Kenwood KAC-M5024BT takes over from its discontinued predecessor, partly because Kenwood is one of the few makers that publishes a CTA-2006 power rating. JVC sells the same amp as the KS-DR2104DBT. New picks include two Rockville micro amps, the Velex VX505, the DS18 NXL-N4BT and the app-driven Stetsom HL DSPlayer 400.4.

The old Kenwood and the Kicker are no longer available, the Pyle Hydra is only sold refurbished and has no Bluetooth, and Velex replaced its VX-502 with the VX505. We couldn't confirm the Massive Audio TX48's power claims. The four small boards that used to round out the list are home-audio amps, not car amps, so they're gone too.

No one has bench-tested these amps independently, so we went by makers' spec sheets and power ratings, owner reports on Bluetooth connections and early failures, and recall checks. Watch the wattage on the box: the big number is a peak claim, and the smaller per-channel RMS figure is the one to compare.

April 20, 2021:

One of the primary benefits of owning a Bluetooth-enabled amplifier is the fact that you don't need a compatible head unit in order to stream music from a Bluetooth-enabled device, bypassing all the unnecessary functionality along the way. This is particularly useful onboard boats, in trailers, ATVs, and other vehicles that may not have a dedicated stereo built-in.

Many of those ranked here, including the Kenwood Compact Automotive Amplifier, Velex Water Resistant Amplifier, and the Massive Audio TX48 Trident, have the extra benefit of being waterproof, making them extra-resilient when used in exposed environments, such as marine applications and outdoor sports. This feature also makes these amps a popular addition to golf carts, especially given their small size.

When choosing a suitable amplifier, you should be sure that it matches the capabilities of your speakers, and that they are not underpowered enough that your amp is overdriven to the point of clipping. It is also useful to check that it is CEA 2006 compliant, to ensure that the manufacturer isn't making bold and unsubstantiated claims with regard to their power output. When sizing up your amp, prioritize the RMS (root mean square) rating over peak power output, as this is a better indicator of true power at safe operating levels, and is the rating usually considered by industry professionals.

Another thing to take into account is the number of channels you need, and this is determined by the number of speakers you have, and how you have them configured. smaller units, such as the Dutison Mini Audio Amplifier, have just two channels, meaning they are only able to power two speakers or one subwoofer. If you wish to power two drivers and a subwoofer, then a minimum 3 channel amplifier is required. As a general rule, the more channels you have, the more expensive the unit, and the larger it is, so these are also important considerations when buying the ideal Bluetooth amplifier to suit your requirements.

March 27, 2020:

The situations in which someone will desire an amplifier that features Bluetooth capability are quite varied, so we've included a wide range of models on our list best suited to several common predicaments.

If you're trying to add Bluetooth to a high-fidelity, high-volume speaker system you're going to want to look at the higher-end models on our list, such as the Kenwood Compact Automotive Amplifier, Infinity K5, and Rockville RXM. They are all on the more expensive side, but they also generally offer a significantly larger amount of RMS watts per a speaker, which is absolutely essential for those trying to drive multichannel systems or large subwoofers at loud volumes while maintaining quality. They're generally design to go between speakers and an existing stereo head unit, but if you're alright with having limited inputs they'll also work by themselves.

Items like the Velex Water Resistant Amplifier and Kicker Bluetooth Amplifier are good for people trying to avoid the use of a dedicated car stereo altogether since they feature things like 3.5-millimeter auxiliary inputs and remotes with transport and volume controls. However, it should be noted that the latter item is a 2-channel unit.

If you want a significantly lower cost, you'll appreciate items like the Dutison Mini Audio Amplifier or Nobsound Lepy, which can simply be mounted to a dashboard or in a more discreet location with just a few screws. These options represent a very affordable way to easily add Bluetooth functionality to an older car, but they won't produce the cleanest aesthetic, and their quality and loudness is definitely lesser than more expensive units.

No matter what item you choose, be aware that most do not come with mounting hardware, speaker wire, or tools, so you will most likely have to provide these things as well as a bit of know-how in order to use them effectively.

Real Power Versus The Number On The Box

When comparing, use the 4-ohm, per-channel figure, and treat anything without a distortion limit as a claim.

Almost every amp here has two power numbers, and only one means much. The CTA-2006 standard, formerly CEA-2006, measures continuous power at 14.4 volts into a stated load with no more than 1% distortion (CTA). Compliance is voluntary, and "max" or "peak" watts have no standard definition at all, so makers can print almost anything (Best Car Audio; MTX).

Kenwood's KAC-M5024BT shows the gap: 50 watts per channel under CTA-2006, 600 watts on the box (Kenwood). Rockville's "dyno-certified" ratings come from its own test, and most are quoted at 2 ohms, which gives bigger numbers than the 4-ohm speakers most people own. DS18 quotes 100 watts per channel at 4 ohms but doesn't claim CTA-2006 (DS18).

No independent lab has published measurements for any amp on this list. When comparing, use the 4-ohm, per-channel figure, and treat anything without a distortion limit as a claim.

Channels, Subwoofers And Controls

Count your speakers first. A two-channel amp drives one pair, a four-channel amp drives two pairs, and eight channels suit big boat systems. Bridging joins two channels into one stronger output, so a four-channel amp can run two speakers, or a small subwoofer, with more power. Kenwood, for example, lists 150 watts per side bridged from a 50-watt-per-channel amp (Kenwood).

None of these is a dedicated subwoofer amp. For real bass, look for a preamp or line output to feed a separate sub amp: Kenwood's and JVC's twin amps have one (JVC), and the Stetsom and the eight-channel Rockville have them too.

Bluetooth in these amps is for music only. They stream over the A2DP profile, and none lists a microphone for calls. Think about volume, too. Some amps leave it to your phone, which is awkward in gloves or on a bumpy trail. A wired remote with a knob, or an app with saved settings, is easier to live with.

Weather Sealing And Safe Wiring

Check the IP code, not the word "marine." The first digit covers dust, where 6 means dust-tight, and the second covers water (IEC). IPX5 means water jets, IPX6 powerful jets, and IPX7 brief submersion, which Kenwood defines as 30 minutes at about 3 feet. An IP65 micro amp is fine for a hose-down but shouldn't sit in a flooded bilge, and an amp with no rating belongs inside the cabin or trunk. Remotes and harness plugs are often the weak points, so mount them out of standing water.

Wire the amp to its manual. Crutchfield recommends stranded copper power wire in the gauge the manual specifies, a ground wire of the same size, and an inline fuse or breaker on the power cable near the battery (Crutchfield). Kenwood specifies a 40-amp fuse for its amp, and DS18 calls for 8-gauge wire and a 25-amp fuse. We found no recalls for any brand on this list in the U.S. Consumer Product Safety Commission database.

How we researched this

We compared about 20 Bluetooth car and marine amplifiers, read makers' spec sheets and manuals, checked which power ratings follow the CTA-2006 standard, looked at long-term owner feedback, and checked every brand for recalls with the U.S. Consumer Product Safety Commission. No independent lab measurements exist for these models.

Sources (10)
  1. Kenwood KAC-M5024BT specifications
  2. JVC KS-DR2104DBT specifications
  3. DS18 NXL-N4BT
  4. CTA-2006-D: testing and measurement methods for in-vehicle audio amplifiers
  5. Best Car Audio: why amps have max power ratings
  6. MTX: car amplifier ratings
  7. IEC: IP ratings
  8. Crutchfield: amplifier wiring kit buying guide
  9. PAS Magazine: Kenwood KAC-M1824BT review
  10. CPSC recalls

Frequently asked questions

What is the best car amplifier with Bluetooth?

The Kenwood KAC-M5024BT, because its 50-watt-per-channel rating follows the CTA-2006 standard, it's sealed to IP67, and its waterproof remote has a real volume knob. JVC sells the same amp as the KS-DR2104DBT.

Do I need a head unit with a Bluetooth amplifier?

No. These amps receive music from your phone directly, and you set the volume from the phone, a remote or an app. Most also accept a wired stereo, though the Kenwood KAC-M5024BT has no RCA inputs.

Can a Bluetooth amp power a subwoofer?

A four-channel amp bridged to two channels can drive a small sub. For more bass, use the amp's preamp or processor output to feed a separate subwoofer amp.

Are Bluetooth marine amps waterproof?

Only some. IP67 amps such as the Kenwood KAC-M5024BT and DS18 NXL-N4BT survive brief submersion, IP65 handles water jets, and IPX5 is splash resistance.

What size fuse does a Bluetooth amp need?

Use the fuse and wire gauge in the amp's manual, and put the fuse on the power cable near the battery. Kenwood specifies 40 amps for the KAC-M5024BT; DS18 specifies 25 amps and 8-gauge wire for the NXL-N4BT.

Can I take phone calls through a Bluetooth amplifier?

No. These amps stream music only and have no microphone, so calls stay on your phone or helmet headset.


Updated by Ezvid Wiki Admin

Originally written by Luke Mitchell.


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