Dayton Audio KAB-250v4 2 x 50W Class D Audio Amplifier Board with Bluetooth 5.0

The Dayton Audio KAB-250v4 Bluetooth Amplifier Board makes it quick and easy to add audio to your project, speaker build, point-of-purchase display, kiosk, or any location where music or sound enhances the experience. With an output of 2 x 50 watts, there is more than enough power to drive stereo speakers, yet the board is small enough to integrate into nearly any project.

Key Features

Efficient 2 x 50 watts of power from the TPA3116 amp chip

Bluetooth 5.0 with aptX HD built directly into board -- no need for a separate module

• Add programmable sound customization with the free KABX software via the KPX programmer board (sold separately)
• Plug-N-Play JST-PH and Molex Mini-Fit Jr wire harnesses make installation quick and simple -- includes power, Bluetooth reset button and speaker cables
• Separate ports for powering by battery or direct DC input from a power adapter
• Optional accessories expand functionality and more
• 5-year Dayton Audio warranty
• Easy to use Bluetooth 5.0 and amplification

The Dayton Audio KAB-250v4 Bluetooth Amplifier Board makes it quick and easy to add audio to your project, speaker build, point-of-purchase display, kiosk, or any location where music or sound enhances the experience. With an output of 2 x 50 watts, there is more than enough power to drive stereo speakers, yet the board is small enough to integrate into nearly any project.

High Quality Audio Performance

The Dayton Audio KAB-250v4 Bluetooth Amplifier Board delivers high quality sound without drawing a lot power. This is due to the highly efficient TPA3116 Class D amplifier chip. The TPA3116 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.

Integrated Bluetooth

Unlike other amplifier boards, the Dayton Audio KAB-250v4 includes a built-in Qualcomm Bluetooth 5.0 module with aptX HD and DSP programing option with KPX board (sold separately). The advantage of Bluetooth 5.0 is its low power consumption which prolongs the playtime of battery powered builds. The streaming audio quality rivals that of CDs since the Bluetooth chip supports aptX, aptX HD, aptX LL, SBC & AAC. High receive sensitivity with RF power up to 9 dBm and -90 dBm, and on board antenna insure stable wireless connectivity up to 15m (50ft.) On board external antenna jack enables the KAB board to be mounted in a metal enclosure with an external antenna (sold separately). 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-250v4 is also CE and FCC ready for certification purposes.

Easy Installation

Due to the overall audio performance and built-in Bluetooth with DSP Programing option, this amp board has almost endless application possibilities.Included with the KAB-250v4 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 additional on board connectors with wiring harnesses (sold separately) available to speed-up installation and create confident connections, 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.

Package Includes

One Dayton Audio KAB-250v4 Bluetooth Amplifier Board

One 2-conductor power cable 20"

One 4-conductor speaker cable 20"

One Bluetooth pairing reset push button switch with cable 20"

Specifications:

Power output (w/ 21 VDC power supply): 2 x 50W @ 4 ohms

• SNR: 92 dB
• THD: 0.02% @ 8 ohms, 10W, 1 kHz
• Frequency response: 22 to 22,000 Hz (±3 dB)
• Impedance: 4-8 ohms

Bluetooth range: 30 ft.

• Mono mixed audio output: Low pass filter set at 220 Hz, volume isn't effected by on board control
• 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, 1-5A
• Board 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
• Empfohlene Spannungsversorgung: 12 bis 24 VDC, 4A
• Empfohlenes Netzteil zum Aufladen (NiMH, Bleisäure oder NiCad) 15 bis 24 VDC, 1A
• Empfohlene Stromversorgung zum Aufladen (Li-Ion) 19 VDC, 1-5A
• Abstand der Befestigungslöcher auf der Platine von Mitte zu Mitte: 3,32" x 2,4" (84 x 61 mm)
• Lochdurchmesser: 0,14" (3,5 mm)
• Abmessungen: 3,6" L x 2,7" B x 0,9" H