MT21 2.1 Channel Bluetooth 5.0 Digital Amplifier Module 100W+50W+50W Subwoofer Audio Board Treble Bass Adjustment AUX Input for Speaker DIY

MT21 2.1 Channel Bluetooth 5.0 Digital Amplifier Module 100W+50W+50W Subwoofer Audio Board Treble Bass Adjustment AUX Input for Speaker DIY

$72.84

$72.84 $0.00

Description

SPECIFICATIONS

Brand Name: Wuzhi Audio

Channels: 3 (2.1)

Control Method: Push button

High-concerned chemical: none

Material: Plastic,aluminum

Maximum Power Per Channel: 100 W

Model Number: MT21

Number of channels: 2

Origin: Mainland China

Output Power: 200W

Package: Yes

Parts: Adapter

Surround sound channel configuration: Others

Product Highlights

Made of premium‑grade materials for reliable quality
Cost‑effective 100W+50W+50W Hi‑Fi Bluetooth amplifier with mature stable solution, pure sound quality, economical 2.1‑channel amp module
Subwoofer + Left + Right channel output, treble & bass adjustable, delivers stunning and powerful audio performance
Exquisite compact appearance, simple and easy to operate
Wide compatibility for various audio DIY applications

Specifications

Parameter	Value
Model	MT21
Channel	2.1‑Channel
Bluetooth Version	Bluetooth 5.0, 15m barrier‑free transmission
Input Sensitivity	500mV
Input Mode	AUX + Bluetooth
Amplifier Chip	Domestic power amplifier chip
Power Supply	DC 12‑24V, 5A or above (DO NOT use 24V battery pack)
Suitable Speaker	20‑100W, 4‑8Ω
Output Power	L/R Channel: ≤50W each; Subwoofer: ≤100W
Protection	Reverse‑connection, over‑heat, over‑current, short‑circuit protection
Dimension	93mm90mm22mm
Weight	Approx 185g (with package)

Package Includes

1 x Amplifier Board

Main Description

MT21 is a cost‑effective 2.1‑channel Bluetooth 5.0 digital audio amplifier module. It supports both Bluetooth and AUX input, with independent treble and bass adjustment for subwoofer, left and right channel output. Built‑in multiple protection functions for safer operation. Perfect for speaker DIY projects.

Important Power Reminder: Sufficient audio input and adequate power supply voltage & current are required to achieve rated output power. Higher supply voltage and lower speaker impedance bring higher output power. Please make sure your power adapter power rating exceeds the actual working power of this amplifier. Do not connect to 24V battery pack.

Product Bullet Points

Cost‑Effective MT21 2.1‑Channel Hi‑Fi Bluetooth 5.0 Amplifier Module 100W+50W+50W
Subwoofer L/R Channel Output, Adjustable Treble & Bass for Powerful Sound
Dual AUX & Bluetooth Input, 15‑meter barrier‑free Bluetooth transmission
Multi‑Protection: Reverse‑connection, Over‑heat, Over‑current, Short‑circuit Protection
Compact Size, Easy Operation, Ideal for DIY Speaker Audio Projects

Important Notes

Requires DC 12‑24V 5A+ power adapter, 24V battery pack is forbidden
Actual output power depends on power supply, speaker impedance and audio input signal
Power supply power must be greater than amplifier actual working power
Suitable for 4‑8Ω 20‑100W speakers only