Dayton Audio KAB-230v3 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

Delivery time: 1-4 business days

  • Article code: KAB-230v3
  • Stock: 6 In stock

The Dayton Audio KAB-230v3 Bluetooth Amplifier Board allows for quick and easy addition of audio to any project. With an output of 2x30 watts, there is more than enough power to drive stereo speakers, yet it is small enough to fit in tight spaces.

€ 49,95 Incl. 21% VAT

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Product description

Dayton Audio KAB-230v3 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

The extremely versatile Dayton Audio KAB-230v3 Bluetooth Amplifier Board allows for quick and easy addition of audio to any project, speaker build, point of purchase display, kiosk, or any location where audio enhances the experience. With an output of 2 x 30 watts, there is more than enough power to drive stereo speakers, yet the board is small enough to integrate into nearly any project.



  • Efficient 2 x 30 watts of power from the Texas Instruments TPA3118 amp chip
  • Bluetooth 4.0 with aptX built directly into board -- no need for a separate module
  • New for v3 is a U.FL IPX coaxial connector for internal or external Bluetooth antenna (internal antenna included) and a Bluetooth pairing reset switch
  • Board includes power and speaker output cables
  • Wire harnesses make installation quick and simple with no soldering required
  • Separate ports for powering by battery or direct DC input from a power adapter
  • 5-year Dayton Audio warranty
  • Optional accessories expand functionality and more



Product details

Dayton Audio KAB-230 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

Tip:  Take a look at the table in this blogpost to see which power supply to choose for this product.


High Quality Audio Performance

Integrated Bluetooth

Easy Installation

The Dayton Audio KAB-230 Bluetooth Amplifier Board delivers high quality sound without drawing a lot power. This is due to the highly efficient Texas Instruments TPA3118 Class-D amplifier chip. The TI TPA3118 operates at 90% efficiency, thus eliminating the need for a heat sink and reducing its overall size. Its high efficiency becomes a major advantage when powering from batteries as it prolongs the playtime of a single charge. Its ultra-low distortion and pop-free performance make this hi-fi amplifier board an integral asset in any quality audio build.

Unlike other amplifier boards, the Dayton Audio KAB-230 includes a built-in Bluetooth 4.0 module with aptX. The advantage of Bluetooth 4.0 is its low power consumption which prolongs the playtime of battery powered builds. The streaming audio quality rivals that of CDs thanks to the addition of the aptX codec by CSR. Designed and built for Bluetooth demonstration purposes, this fully functioning module provides a turn-key approach to Bluetooth certification for consumer goods. If the application of this board is for the hobbyist or industrial purposes then nothing is required to enjoy the full convenience of pairing and streaming high quality Bluetooth audio. The KAB-230 is also CE and FCC ready for certification purposes.

Included with the KAB-230 are two wire harnesses: one for DC power and the other for connecting to stereo speakers. For many users, these cables are all that is needed to complete a project. Since they have Molex Mini Fit Jr connectors to speed-up installation and create confident a connection, there is no need to solder or troubleshoot loose and unstable contacts. Dayton Audio also offers a variety of accessories with robust features to make installation even easier. Find out more about optional accessories below.


Endless Applications


Due to the overall audio performance and built-in Bluetooth, this amp board has almost endless application possibilities. From hobbyists and DIYers to manufacturers and installation organizations this Bluetooth amp board has immense flexibility. For orders greater than 100 units, custom OEM Bluetooth pairing names are available -- email for more details. Even if you bypass the Bluetooth feature, this amplifier board integrates easily into any job because of its array of included and optional wiring harnesses. Examples of applications include:


Extreme Low Standby Power


The Dayton Audio KAB-230 will remain powered up to 7 days in standby mode even while Bluetooth is enabled. This standby time is approximately 4x longer than the competition due to the use of a high efficiency DC/DC converter which minimizes power consumption thanks to the employment of a micro controller as the PMU (Power Management Unit).


Multiple Power Paths


The Dayton Audio KAB-230 features numerous power options for creative, wireless sound projects. This flexibility eliminates limitations often caused by most other amp boards. Therefore, your design can be cord restricted or truly portable.


For portable applications, there is an optional function cable kit (KAB-FC) which permits the connection of rechargeable batteries to power the board. NiMH, lead acid, or NiCad batteries will recharge straight from the board using a 15 - 24 VDC, 1A power supply.


Use extreme caution because the Bluetooth amp board does not provide under/over charge protection and the connected power adapter cannot have an output greater than 30 watts. Eight AA alkaline batteries can also power this board, but do not connect the recharging feature for this type of use.


The best rechargeable battery option makes use a separate interconnect board from Dayton Audio (KAB-BE) which holds three 18650 Li-Ion batteries. This portable power source is highly recommended since this add-on battery holder board does provide under/over voltage protection. A 19 VDC, 1-5A power supply is your best choice for charging the expansion board.


Package Includes

  • One Dayton Audio KAB-230 Bluetooth Amplifier Board
  • One 2-conductor power cable 20"
  • One 4-conductor speaker cable 20"



  • Power output (w/ 19 VDC power supply): 2 x 30W @ 8 ohms
  • SNR: 89.3 dB
  • THD: 0.07% @ 8 ohms, 10W, 1K Hz
  • Frequency response: 22 to 22,000 Hz (±3 dB)
  • Impedance: 4-8 ohms
  • Recommended power supply: 12 to 24 VDC, 4A
  • Recommended recharging power supply (NiMH, lead acid, or NiCad) 15 to 24 VDC, 1A
  • Recommended recharging power supply (Li-Ion) 19 VDC, (1-5)A
  • Plate mounting holes center to center spacing: 3.32" x 2.4" (84 x 61 mm)
  • Hole diameter: 0.14" (3.5 mm)
  • Dimensions: 3.6" L x 2.7" W x 0.9" H



Special Features




Specifications for: KAB-230v3 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

  • Rated power output (RMS) The electrical power measured in watts (W) that an amplifier can output per channel, without damaging the amplifier or the output signal is çlipped'. RMS = Root Mean Square. 2 x 30 watts at 8 ohms
  • Minimum load Shows the minimum load that an amplifier can control in ohms. A lower impedance of a speaker is not recommended if it is lower than the minimum impedance of an amplifier. An amplifier works best when the impedance of the speaker falss within the impedance range that the amplifier prescribes (for example, 4 to 8 ohms). 4 ohms
  • Efficiency SPEC Efficiency 90 %
  • Signal-to-noise ratio (SNR) Shows the strength level of signal power compares to a level of noise power. Generally, higher values ​​means better specification. 89.3 dB
  • Distortion Measured in Total Harmonic Distortion + Noise (THD+N). The lower this figure, the closer the output of the amplifier will sound to the original recording. 0.07 % THD (1,000 Hz at 10 watts)
  • View all specifications
  • Frequency response 22 - 22,000 Hz
  • Input impedance -
  • Input sensitivity -
  • Gain 26 dB
  • Amplifier Classification Class D
  • Circuit Topology Texas Instruments TPA3118 based
  • Speaker output channels 2
  • Input connection type

    4 pin PCB connector

  • Speaker output connection type 4 pin PCB connector
  • DSP function -
  • Bluetooth version 4.0
  • EQ Adjustment -
  • Power Requirements

    12 - 24 VDC, 4 A
    15 - 24 VDC, 1 A (NiMH, lead acid, or NiCad charging supply)
    19 VDC 1-5 A (Li-Ion charging supply)

  • Power inlet connector 2 pin PCB connector
  • Current limit -
  • Under/over voltage protection -
  • Dimensions (L x W x H) 91 x 69 x 23 mm
  • Mounting hole spacing 84 x 61 mm
  • Mounting hole diameter 3.5 mm



User reviews 4.75 / 5 Reviews: (4)

  • BB By Bas B. on 06-02-2019 22:41

    5 / 5

    Klein maar fijn. Goed in te bouwen in een (semi)klassieke autoradio. Goed hoog en goed laag. Top product voor dat geld.

  • JN By Jon on 22-07-2018 23:33

    5 / 5

    Great amp board for small DIY audio projects. Plenty of power and not too much noise. Easy to use, easy to install and pretty darn good for it's price tag. Bluetooth range is ok. Excellent build quality! I run mine off a 24V 2A switching supply and it works great without overheating.

  • TS By Tomas on 22-07-2018 11:56

    4 / 5

    Board is nicely made, I would rather mount a heatsink on the amp IC, though. All accessories come with unshielded wires, there's a DC coming out to the output from the volume regulation (speaker cone going in or out when changing volume). BT LED is constantly blinking when there's nothing paired.
    Sound quality is decent, there's more than enough output power for any small speakers and even for bigger ones.

  • TC By Tiago C. on 16-11-2017 13:05

    5 / 5

    No description was given

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KAB-230v3 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

KAB-230v3 2x30W Class D Audio Amplifier Board with Bluetooth 4.0

€ 49,95

SoundImports 9,6 / 10 - 1114 Reviews @ Kiyoh
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