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• XY-C15H 20Wx2 APP Control Audio Amplifier Bluetooth-Compatible Subwoofer Board Stereo Wireless HiFi Speaker Module Set Feature: Audio input supported: Bluetooth-compatible 5, AUX, Audio output supported: lively speaker, passive speaker (note: passive speaker and active speaker can solely want one) Classic browsing multifunctional leading knob The leading knob uses the rotary encoder used by high-end strength amplifier to achieve 360 degrees of stepless tuning; Feel smooth, one button start and forestall Long press switch machine uncomplicated and handy operation Bluetooth-compatible high-speed and secure connection Built-in super 5 sequence Bluetooth-compatible chip, effectively cut the playback lag Mobile APP control APP visual operation playback mode supports for Apple/Android (please obtain for Google Market, seek 'Sinilink' to download) The heat sink affixed by way of special thermal silica gel is used for heat dissipation, and the heat dissipation field is doubled to ensure the complete power and excessive functionality operation of the product Specification: Model: XY-C15H Power supply: DC9-24V/2A above Bluetooth-compatible version: five Audio input: Bluetooth-compatible +AUX input Transmission distance: 15 m (no shielding) Volume adjustment: high-end encoder knob adjustment, really feel mushy Adapter horn: 10W-100W/4Q-16Q Output power: 20W*2 Protection mechanism: electrostatic protection, overheat protection, overcurrent protection, quick circuit protection Special function: assist for Sinilink-APP management Size: 67mm*47mm*18mm/2 Weight: 40g Tips: 1 Audio input mode switching: This product is powered on in Bluetooth-compatible mode through default when no exterior audio machine is mounted Follow the backplug system precedence principle during playback For example, if AUX is inserted throughout Bluetooth-compatible playback, will probably be switched to AUX playback immediately Audio mode can also be switched through APP, which is very convenient AUX line with shielding layer needs to be selected as far as probable to reduce noise when AUX is playing If it's used with desktop computer, AUX output interface at the back of computer host needs to be used as some distance as possible, as AUX output in entrance of pc may have noise 2 Power delivery selection: The energy supply range of this product is 9-26VDC, well matched with the conventional 5/2 energy adapter plug, commended to use 12V/24V common strength adapter, recent output 2A or more 1)The power supply length is related to the speaker power, reminiscent of the use of 4Ω/15W speaker energy supply is less than 12V; Use 8Ω/30W speaker, power delivery doesn't exceed 24V 2) The strength supply voltage should not be higher than 26V, larger than 26V, the circuit board will be burned 3) If the power amplifier board restarts after the amount is increased throughout the playback, it is brought on by insufficient power supply Replace the ability delivery with a bigger output current 3 Speaker selection: This product can continually output 15W*2 strength amplifier, 10W~100W audio system could be pushed, eight ohms or 4 ohms speaker is usually recommended If song audio system appear "hiccup" phenomenon, the 1st consideration is insufficient power supply, use a larger strength supply; Second, consider the ability amplifier overheat protection, toughen the heat dissipation or turn down the playback quantity If a number of speakers are utilized in parallel, the full impedance of the parallel speaker should be managed above 4 ohm If the impedance is simply too small, the power amplifier is easy to enter the overcurrent protection state 4 Power amplifier board warmth dissipation problem: It is normal for the flexibility amplifier board to generate warmth when driving the loudspeaker If the output power is 20W x 2, you must install extra heat sink for warmth dissipation Note: Use 4Ω speaker, power delivery cannot exceed 12V; Use 8-ohm horn, power supply can not exceed 24V Due to different monitor and light effect, the actual shade of the article is probably slightly diverse from the colour showed at the pictures Thank you! Please allow 1-2cm measuring deviation because of handbook measurement 1 Set x Audio Amplifier Board

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