A2-2 50Wx2 Bluetooth 5.0 Amplifier Digital Power Amp TPA3126D2 Mini Power Amp Without Power Supply

A2-2 50Wx2 Bluetooth 5.0 Amplifier Digital Power Amp TPA3126D2 Mini Power Amp Without Power Supply



What is a digital power amplifier?
It is an amplifier with low distortion, low noise, and large dynamic range. The sound quality is excellent in transparency, resolution, and low-frequency shock. Features low power consumption, low heat generation, small size, and space saving. At present, it is becoming the mainstream of modern household power amplifiers and used as car power amplifiers at the same time.

Why choose this digital power amplifier?
Thickened all-aluminum alloy shell is not deformed, the surface is brushed and oxidized, and the laser engraved fonts will not fade. At present, power module has been upgraded from TPA3116D2 to TDA3126D2. The mid- and low-frequency response of the indicator is more ideal, and the high-frequency distortion is reduced to one-tenth of the original. With the lossless red ring inductor output, the mid and low frequencies are very full, the high frequency penetration and details are very good. It is highly cost-effective.

Precautions:
The switch on the board is a standby switch. After turning off the switch, the machine is in a low-power standby state. When you want to completely turn off the power supply or use it for a long time, you can unplug the DC plug on the machine.

The power amplifier is for what kind of speakers?
It fits passive speakers. Bookshelf speakers are recommended.

Do I need treble & bass tuning versions?
For users who like original taste, please choose the versions with one-knob, which only adjust the volume, and the music is 1:1 straight-amplified. Users who like treble & bass can choose 3-knob tuning versions.

Need 50Wx2 or 100Wx2 versions?
50Wx2 for small speakers and small rooms. Large speakers in living rooms and large rooms use 100Wx2.

What specifications do I need for the power supply?
It supports 12V-24V, power supply jack is 5.5-2.5mm, and the current is above 3A. The higher the voltage, the greater the output power of the amplifier. Please refer to the table below for details:


A2-2:
- Chip: One TPA3126D2
- Power: 50Wx2
- With Bluetooth 5.0
- Without power supply

A2-2 Advantages:
- TPA3126D2 is a class D power amplifier IC with outstanding indicators. Switching frequency up to 1.2MHz, high power distortion rate less than 0.1%, power efficiency greater than 90%, low idle loss. Advanced modulation system configuration, multiple switching frequencies, AM interference to prevent master-slave mode synchronization, with high PSRR feedback power level The architecture integrates self-protection circuit and heat-resistant enhanced package.
- Component technology: Use enthusiast low-loss, high-bandwidth red-ring inductors, which are more expensive than sealed inductors and make the sound quality more enjoyable. Using capacitor filter array, coupling capacitor for WIMA, a large number of HIFI materials. Through solid workmanship, the stability of the power amplifier is ensured, and the sound quality surpasses most entry-level power amplifiers.
- Filter array: A large number of filter capacitors make the sound quality more transparent and the sense of hearing is more layered.
- Signal decoding: Bluetooth 5.0.

Bluetooth Connection (Password of Bluetooth is 0123):
Step 1: Power on the module (the external status indicator flashes)
Step 2: Enter system settings
Step 3: Turn on Bluetooth and search for Bluetooth Audio devices
Step 4: Connect Bluetooth

Package Included:
- 1 x Set of Digital Power Amplifier

Note:
- It is assembled.
- Other items pictured are not included, for demonstration purposes only. Thank you for your understanding!