Build your own audio setup with the amiciSound ZK-MT21 Digital Audio Power Amplifier Module. Designed for DIY speaker projects and compatible amplifier replacements, it provides separate left, right and subwoofer channels, along with Bluetooth 5.0, AUX and USB audio inputs.
Adjustable Sound Controls
Fine-tune your listening experience using the available controls:
Master volume
Bass
Treble
Subwoofer volume
Subwoofer frequency
Specifications
Model:- ZK-MT21
Amplifier Type:- Digital Audio Power Amplifier
Channel:- 2.1 Channel
Bluetooth Version:- Bluetooth 5.0
Audio Inputs:- Bluetooth + AUX + USB
Output Channels:- Left + Right + Subwoofer
Stereo Output:- <50W × 2
Subwoofer Output:- <100W
Compatible Speaker Impedance:- 4Ω-8Ω
Recommended Speaker Power:- 20-100W
Power Supply:- DC 12-24V
Recommended Supply Current:- 5A or above
Size:- 90 × 93 × 22 mm
AUX Input:- 3.5mm
Sound Adjustment:- Volume, Bass, Treble, Subwoofer Volume, Subwoofer Frequency
Bluetooth Function:- Wireless audio connection with automatic reconnection
USB Function:- USB audio input; supports computer USB audio and U-disk use
Installation:- DIY / amplifier replacement
Power Adapter:- Not included; prepare separately
Package & Compatibility Note
The product is an amplifier module intended for integration into a suitable audio setup. A compatible DC power adapter and speakers must be arranged separately. Actual output power varies with the power supply, speaker impedance and operating conditions. Ensure correct power polarity and speaker connections before switching on.
Ideal for DIY audio enthusiasts who want Bluetooth playback, multiple input options and adjustable sound controls in a compact 2.1-channel amplifier module.