In order to achieve better results, this product is designed to use a large current with shielded output inductors, with the original TPA3116D2 amplifier chip, better match, less interference, less heat, the original pre-chip, high-quality SMD post Components, stable performance.
Power input connection: docking seat. Boot anti-shock protection design, switch machine no POP burst sound.
Audio input connection: standard 3.5MM audio cable input socket, or input audio from the 3P socket. With power LED power supply display. Use more convenient.
Support low impedance horn: used in the high power supply voltage 24V, can support 3.5-8 ohm speakers or speakers, the use of a wide range.
Use a larger heat sink to meet the needs of high voltage power supplies and heat dissipation in high power output conditions. Can be stable for a long time to work.

Technical Details

Product Details

Package Dimensions
Width : 2.8 inch
Height : 0.79 inch
Length : 4.21 inch

Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B071KYTYBM

Product Description

Board size: 79 * 50 * 18 (L * W * H) mm (not including the potentiometer protruding part 15mm).
Operating voltage range: DC 9-25V (current 3A or more. If you want more power recommended 19-24V / 4A above)
Audio input sensitivity: 600mv.
Speaker impedance: two-channel speaker: 4-8 ohms.
Maximum output power: 50W (left channel) + 50W (right channel) Dual channel
About power selection:
Board is the use of DC power supply, there are positive and negative reverse protection, positive and negative reverse power off.
The power supply does not allow incorrect connection to the speaker output connector, which can cause the amplifier chip to be damaged.
The maximum operating voltage of 25V (Note: Do not use more than 25V).
If you use a common AC adapter power supply, you must add rectifier filter before you can connect to use. (Note: no-load voltage after rectification is not greater than 25V).

Power supply with 12V / 3A or more, left and right speakers with 4 ohms / 15-30W;
Power supply with 19V / 3-4A above, left and right speakers with 4 ohms / 30-50W [These are just a basic parameter, for reference only].
Such as the power requirements are particularly high, the proposed power supply with 20-24V / 4-5A or more, speakers with 4 / 40-80W.

Speaker output wiring:
Speaker output ''+'' or ''-'' are independent, not a total of output, can not be connected to each other. And can not be connected with the power ''+'' or ''-'', the error will not sound or cause the amplifier chip is damaged.

Speaker output wiring:
The speaker outputs ''+'' or ''-'' are independent and can not be connected to each other.
And can not be connected with the power ''+'' or ''-'', the wrong connection will sound is not normal or cause the amplifier chip is damaged.

Package Included:
1*DC9-25V TPA3116D2 Digital Amplifier Board Dual-channel Output 50W +50W