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Green rectangular amplifier board with silver heatsinks and Bluetooth antenna

lelisten

lelisten 50W+50W Bluetooth 5.0 Amplifier Board

SKU CH-90WH-A5HZD

A stereo amplifier board delivering 50 watts per channel via Bluetooth 5.0 or line input, powered from 9 to 24 V DC with built-in protection circuits

  • TypeAmplifiers
  • Low-distortion audio with THD below .1% via TPA3116D2 chip
  • Flexible DC 9-24V input works with 12/15/18/24V supplies
  • Dual Bluetooth 5.0 and line-in sources for versatile connectivity
  • Built-in over-voltage, under-voltage, over-heat and short-circuit protection
  • 50W per channel into 100W total stereo output power

Amplifier board for DIY audio

The lelisten board delivers two channels of 50 W each using a TPA3116D2 chip with AM interference suppression. Bluetooth 5.0 allows direct wireless streaming from a phone without pairing codes. Total harmonic distortion stays below 0.1 % even during extended high-power operation.

Check power supply and speakers

Verify that your DC source can supply between 9 V and 24 V with enough current for the desired output level. The board accepts 9 V, 12 V, 15 V, 18 V or 24 V inputs. Speaker impedance affects delivered power; higher impedance reduces output when voltage and current are sufficient.

Replaces basic amp modules

This board upgrades older single-channel or lower-power modules that lack wireless input or integrated protection. The jump is worthwhile when you need stereo Bluetooth streaming plus over-voltage, under-voltage, over-heat and short-circuit safeguards in one compact PCB.

Highlights

  • Low-distortion audio with THD below .1% via TPA3116D2 chip
  • Flexible DC 9-24V input works with 12/15/18/24V supplies
  • Dual Bluetooth 5.0 and line-in sources for versatile connectivity
  • Built-in over-voltage, under-voltage, over-heat and short-circuit protection
  • 50W per channel into 100W total stereo output power

Specifications

TypeAmplifiers

Questions about this item

What comes with the amplifier board and what must I supply separately?

The board arrives ready to install with a protective case and Bluetooth 5.0 built in. You must provide a DC power source between 9 V and 24 V such as a 12 V, 15 V, 18 V or 24 V supply, plus passive speakers and an optional line-level source if you want a wired connection.

Which power-supply voltage should I choose for the 50 W + 50 W output?

Any voltage from 9 V to 24 V will work; a 12 V, 15 V, 18 V or 24 V supply all fall inside the range. With sufficient current the higher voltages allow the TPA3116D2 chips to deliver more power into the speakers.

What does the 100 W headline figure mean once the board is installed in a real system?

The 100 W rating is the combined peak output of both channels when the power supply delivers enough voltage and current and the speakers present a suitable impedance. Actual continuous power will be lower and depends on the supply voltage chosen and the speaker load.

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