About the Kenwood KAC-M1824BT
Power your music on land or sea
Power your music on land or sea
Kenwood's KAC-M1824BT 4-channel amplifier will pump up your car's audio system with 45 watts RMS per channel — that's more than twice the power of most car stereos. The super-compact KAC-M1824BT will add new clarity and impact to the basic sound system of almost any kind of vehicle on land or water, and it'll fit in a lot of places when space is tight. The amp uses plastic plugs that protect its power and speaker connections, and features a conformal coated circuit board that keeps out moisture and salt, so the party won't stop just because of a little wetness.
Play music wirelessly — no receiver necessary
If you store all your music on your phone or other portable device, you can use the KAC-M1824BT's wireless Bluetooth connection to play your tunes — a great feature if you don't have room to install a receiver. The wired remote controls the volume and track selection, and a USB port on the remote lets you recharge your device, so you won't miss a beat of the fun.
It also works with a receiver
The KAC- M1824BT comes with RCA connections so you can use it with an aftermarket receiver. It can handle speaker-level signals as well, so you can still get input from a radio without RCA outputs. The amp senses incoming high-level signals and turns itself on, eliminating the need to install a separate remote turn-on wire.
Bluetooth note: Use of this amplifier's Bluetooth features will depend upon your phone's Bluetooth capabilities. Learn more in our article explaining Bluetooth profiles.
- compact 4-channel amplifier for car, motorcycle, and boat
- 45 watts RMS x 4 at 4 or 2 ohms
- 90 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
- CEA-2006 compliant
- wireless Bluetooth connection via wired remote controller
- Apt X technology improves Bluetooth sound quality
- supports AAC files for iPhone® users
- USB port on remote for charging your portable device
- conformal-coated circuit board — suitable for marine applications
- MOSFET power supply and Class D amp technology
- preamp and speaker-level inputs
- preamp outputs
- signal-sensing turn-on on speaker-level inputs eliminate need for a separate remote lead
- 10-gauge power and ground leads recommended
- fuse rating: 15A x 1
- dimensions: 6-11/16"W x 1-13/16H x 3-7/8"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # KAC-M1824BT
What's in the box:
- Bluetooth 4-Channel amplifier with a 15A ATM mini-fuse installed
- 59" Wiring harness (22-pin Molex plug on one end)
- Remote control/Bluetooth control unit with attached 10.5' cable (12-pin Molex connector on one end)
- Remote Unit mounting bracket
- 4 Self-tapping screws (M4 x 16mm)
- Two 13.5" Plastic wire ties
- Dual-sided adhesive tape
- Protective Cover for Controls (1 sheet)
- Instruction Manual/Warranty Card
Kenwood KAC-M1824BT reviews
While restoring a car, I installed some good JBL speakers to use with another Bluetooth type amp. I was a bit disappointed. I contacted Crutchfield and the salesman suggested this amp. I was a bit skeptical and told him that I would send it back if it wasn't significantly better. I love it.it woke up the speakers and the remote makes it easy to operate, while driving.
0 of 0 found this helpful
This thing is junk. First one i had, the line in source bled through into the bluetooth. So it was swapped out with a second which did the same thing. Spent time on the phone with Crutchfield support and checked and rechecked all the wiring and install. Side by side with the exact same bike and speakers that is running a pbrx2 and this thing gets blown away. Couldn't be more disappointed. Crutchfield has graciously swapped it out again and it's currently in a box waiting for a jl audio to come in that's it of stock. I cannot wait to be rid of this thing. 0 stars if I could.
2 of 4 found this helpful
Very nice system, was a joy working with your team
1 of 3 found this helpful
Buy this Bluetooth amp now. Seriously, it rocks. With Crutchfield's 100% satisfaction guarantee you cannot lose.
Pros: Perfect assimilation to existing systems.
Cons: None observed.
1 of 2 found this helpful
I installed this amplifier in my Factory Five 33 Hot Rod. Hides neatly behind the seats and the wired remote is similarly easy to hide for car shows - I just slip it between the seat and the transmission tunnel. However, while driving, the remote has a hefty, easy to use feel that allows you to keep your eyes on the road while adjusting volume, skipping a track, etc. I play it through ancient two Infinity Kappa RS63 door speakers and the sound is quite amazing - even in a top down hot rod with VERY loud exhausts. I recommend this little jewel of a unit very highly!
Pros: Small size, easy to hide, water resistant, awesome wired remote, big sound
4 of 4 found this helpful
Installed in 2017 RAM 1500 with base audio system. Nice improvement over stock. Only thing I wish it had was adjustable gain.
Pros: Small size. Nice power out put for more or less stock applications.
Cons: No gain adjust.
2 of 2 found this helpful
Purchased this amp for a 1965 Galaxie that only had an AM radio. I placed the amp under the front seat so the corded remote can easily be routed to bench seat. Remote works great and adds just enough volume to hear it well even with the top down.
3 of 3 found this helpful
More details on the Kenwood KAC-M1824BT
Features & specs
|RMS Power Output (Watts x Channels)||
45 x 4 |
|Peak Power Output (Watts x Channels)||---|
|Power at 2 Ohms (Watts x Channels)||45 x 4|
|Bridged Power (Watts x Channels)||90 x 2|
|Minimum Impedance Bridged||4|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||20-20k Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||90 dB|
|Low-Pass Crossover Frequency||N/A|
|Low-Pass Slope (dB/octave)||N/A|
|High-Pass Crossover Frequency||N/A|
|High-Pass Slope (dB/octave)||N/A|
|Bass Boost Frequency||N/A|
|Speaker Level Inputs||RCA|
|Preamp Outputs||1 pair|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Compact Amplifier: The Kenwood KAC-M1824BT is a compact Class D 4-channel amplifier with Bluetooth wireless technology. The amp features a conformal coating on the circuit board to protect it from moisture. This allows you to use the amp for motorcycles, marine applications, or on All-Terrain Vehicles (ATVs). The KAC-M1824BT delivers 45 watts RMS x 4 channels at 4 or 2 ohms. It also gives you 90 watts RMS x 2 at 4 ohms bridged. The amp operates at full frequency range, and is not designed to power subwoofers.
Bluetooth: The built-in Bluetooth wireless technology lets you use your smartphone or Bluetooth digital music player as your primary listening source. This makes the amp ideal for putting a sound system in a classic car, ATV, motorcycle, or other motorized vehicle. The amp comes with a wired controller for raising or lowering the volume and changing tracks. The attached 10.5' cable allows you to place the compact amp in a remote location. The KAC-M1824BT is compatible with Bluetooth Ver.3.0 + EDR, and supports SBC, AAC, and aptX for better sound quality.
Remote: The supplied Remote Control unit's Source button lets you pair the Bluetooth device, as well as switch between sources (Bluetooth or RCA/Speaker Input). Other controls include Play/Pause, Backward Skip/Fast Backward, Forward Skip/Fast Forward, and Volume Up/Volume Down. The remote can be surface mounted using the supplied double-sided tape, or flush-mounted in the included bracket. It also has a 1/4"-20 thread (same as a camera tripod thread) that allows you to attach the remote to an optional bar mount kit.
Protection Circuitry: The amplifier features protection circuitry for thermal overload, DC offset, and short circuits. The amp stops operating when it goes into protection mode. (There are no LED indicators.)
Signal-sensing Turn-on: When the amplifier is connected to a factory head unit, or an aftermarket unit without preamp outputs, you can splice the head unit's speaker wires to a speaker-to-male RCA adapter. In this case, the amplifier's Signal-sensing Turn-on feature will turn on the amp when a signal is detected on the input. This eliminates the need to connect a turn-on lead to the amp's Power Control (blue) wire.
Note: If your only using Bluetooth and no other input (speaker-level or RCA) you will need to hook up the turn-on lead.
Mounting: The KAC-M1824BT can be mounted onto an installation board (5/8" thick or more) using the supplied M4 x 16mm self-tapping screws. Two 13.5" plastic wire ties are included for securing the amplifier to a 2x4 board or other narrow item.
Power Connections: The power, ground, power control, and speaker output wires are included in the supplied 6' wiring harness. The 16-gauge yellow power wire can be spliced into the continuous power wire for the head unit. It is not necessary to run the power wire directly to the battery. The ground wire should be run to the vehicle's chassis.
Power Control: The Power Control (blue) wire should be connected to the head unit's remote turn-on lead when an aftermarket unit is used. This wire does not need to be connected if you're using speaker level inputs. The Signal-sensing Turn-on feature will turn on the amplifier when an input signal is detected.
Line-Level Inputs: The amplifier is equipped with two pairs of RCA inputs for connecting stereo RCA patch cables from the head unit to the amp. If using a factory head unit, or a unit without preamp outputs, you can splice the speaker wires to an RCA plug, maintaining the same polarity.
Line-Level Outputs: In addition to the line inputs, the KAC-M1824BT has one pair of RCA line outputs. This allows you to feed the input signal to another amplifier, if desired.
Speaker Outputs: The included harness has eight 20-gauge wires for connecting your speakers to the amp. You can connect the eight wires to the 4 speakers in a Front Left & Right and Rear Left & Right configuration. By bridging the amplifier, you can get higher power output to two 4-ohm speakers. The amp's Output Mode switch should be placed in the appropriate position depending upon how the speakers are wired: Stereo 4-channel or Bridged 2-channel. The wiring diagram for both configurations can be found in the instruction sheet.
USB Charging Port: A Type A USB port is provided on the amplifier for charging an iPod, iPhone, or Android device. For charging your device, you should use the cable included with your device or the optional KCA-iP102 (30-pin), KCA-iP103 (Lightning), or Micro USB 2.0 (Android) charging cable.
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