Dayton Audio - KAB-250v4 - 2 x 50W Class D and similar items

Brand NEW! Including 5 Years USA Factory Warranty. 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 Wire harnesses make installation quick and simple with no soldering required -- includes power and speaker cables Separate ports for powering by battery or direct DC input from a power adapter Optional accessories expand functionality and more 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. 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. Detail zoom of additional on board connectors. Easy Installation 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. 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. 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. Extreme Low Standby Power The Dayton Audio KAB-250v4 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-250v4 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. Solar charging is also an option; this application requires solar batteries with float (open) voltage with 16.5 to 21.5 VDC, and 20 to 100 watt panel. 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 of 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. (15 VDC Min required and 24 VDC Max) 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. 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 - All international buyers are responsible for all tax, duties and/or customs fees.