Class D amplifier board INK-201BT 2.1 Bluetooth 5.0 Digital Amplifier Board 50×2 + 100W Class D Audio AMP Module Support AUX by IOT Audio


The IOTaudios INK-201BT Class D amplifier board stands out as a beacon of innovation, seamlessly blending cutting-edge
technology with an impressive array of features. This 2.1 Bluetooth 5.0 Digital
Amplifier Board boasts a power-packed 50×2 + 100W Class D Audio AMP Module and
extends its versatility by supporting AUX connectivity. In this article, we
delve into the capabilities and features that make the INK-201BT a standout
choice for audio enthusiasts.

In the circuit have 2 amlifing ic by CHIPSTAR model no-CS8673E.First for drive left & right channel, second is for only drive the Subwoofer channel.

In the preamplifier circuit 4 op amp ic RC4558 have used for separate the all channel with Volume adjustment.

In the amplifier you have adjust volume of the subwoofer and master volume, bass, and treable for left right channels. Also you have a operating switch for changing mode of Bluetooth and AUX channels.

This amplifier needed a power supply of (12v-24v) with maximum 10A.

Here you have as per yours need you choose a power supply if you want to 200w output then you have 24v 10A power to the amplifier. But I recommend that you are using maximum 21v with 10A is safe power for the amplifier.

Bluetooth 5.0 Connectivity:

The INK-201BT features Bluetooth 5.0 technology, elevating the wireless audio experience to new heights. With its advanced Bluetooth capabilities, users can enjoy seamless connectivity with their devices, experiencing high-quality audio transmission and a more extended range. This feature not only ensures a hassle-free pairing process but also guarantees a stable and efficient wireless connection for an immersive audio experience.

Powerful Class D Amplification:

At the heart of the INK-201BT is a robust 50×2 + 100W Class D Audio AMP Module, delivering a total power output of 200 watts. Class D amplifiers are renowned for their efficiency and low heat dissipation, making them an ideal choice for compact and powerful audio solutions. Whether it’s driving speakers for a home audio setup or enhancing the sound quality of a DIY project, the Class D amplification of the INK-201BT ensures a potent and clear audio output.

2.1 Channel Configuration:

The INK-201BT is not merely a stereo amplifier; it embraces a 2.1 channel configuration, adding depth and richness to the audio experience. With dual 50-watt channels for stereo output and an additional 100-watt channel dedicated to the subwoofer, users can create a comprehensive audio setup with enhanced bass response. This makes the INK-201BT an excellent choice for users seeking a full-bodied sound profile in their audio setups.

AUX Input Support:

While Bluetooth connectivity is a standout feature, the INK-201BT goes a step further by providing AUX input support. This means users have the flexibility to connect devices via a wired connection, ensuring compatibility with a wide range of audio sources. Whether it’s a vintage turntable, a gaming console, or a traditional music player, the INK-201BT accommodates various audio devices, offering a versatile and inclusive audio solution.

Compact and Versatile Design:

The INK-201BT doesn’t just deliver on performance; it also boasts a compact and versatile design. Its form factor makes it suitable for integration into a variety of audio setups, including home theaters, bookshelf speaker systems, or DIY audio projects. The amplifier board’s sleek design is complemented by its ease of installation, making it accessible for both audio enthusiasts and DIY hobbyists alike.


The IOTaudios INK-201BT 2.1 Bluetooth 5.0 Digital Amplifier Board emerges as a powerhouse in the world of audio amplification. With its advanced Bluetooth connectivity, potent Class D amplification, 2.1 channel configuration, and AUX input support, it caters to a broad spectrum of audio needs. Whether you’re a casual listener or a dedicated audiophile, the INK-201BT promises a captivating and versatile audio experience that goes beyond expectations.


yes. Its for home use.

Smps or adapter 12-24v 10A max.

2 Woofer speaker 50w 4ohms each.

1 Subwoofer 80w max 4ohms.

Amazon. Click on Checkout.

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