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2.1 HiFi Amplifier Bluetooth 5.0 Audio Board with 2*50W+100W Output and DC12~24V Power Supply

Name: 2.1 HiFi Amplifier Bluetooth 5.0 Audio Board with 2*50W+100W Output and DC12~24V Power Supply
Brand: Shenzhen Creatall Electronics Co., Ltd.
SKU: CA-3169B
Price: 425.20 USD
Availability: InStock

Brand Name:	Creatall
Model Number:	CA-3169B
MOQ:	10pcs
Price:	negotiable
Delivery Time:	5-8 work days

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

GUANGDONG CHINA

Model:

CA-3166

Brand:

Creatall

Output Power:

2*50W+100W

Input Voltage: Dual DC Power Supply:

DC12~24V

Left And Right Channel Speakers:

4~8ohm

Frequency Response Range:

20Hz-20KHz

Subwoofer Speaker Impedance:

2-8 Ohm

Audio Input Sensitivity:

600-800mV

Bluetooth Receiving Distance:

> 8 M (meters)

Supply Ability:

10000 Piece/Pieces per Day

Highlight:

Subwoofer Amplifier Audio Board

DC12 amplifier board supplier

wholesale amplifier board supplier

Product Description

CA-3169B Subwoofer Amplifier Audio Board 2.1 HiFi Amplificador USB Amp Bluetooth 5.0

Product Overview

Professional 2.1 channel subwoofer amplifier board featuring Bluetooth 5.0 connectivity, USB input, and high-performance TI TPA3116D2 digital power amplifier chips. Designed for superior audio performance in various applications.

Key Features

DC-powered operation (12-24V) with TI TPA3116D2 digital power amplifier chips
Three-channel output: 100W (bass) + 50W (left) + 50W (right)
Bluetooth 5.0 audio reception with external audio input interface
Built-in preamplifier with bass crossover processing
Multiple control potentiometers: bass volume, bass frequency, channel volume, treble, function switch
High efficiency design (up to 90%) with wide voltage compatibility
Pre-soldered and tested finished board ready for installation

Technical Specifications

Parameter	Specification
Dimensions	101 × 100 × 25 mm (excluding potentiometer and socket projection)
Operating Voltage	DC 12-25V (recommended DC24V 4A)
Maximum DC Voltage	25.5V (no-load)
Bluetooth Range	> 8 meters
Audio Input Sensitivity	600-800mV
Frequency Response	20Hz-20KHz
Subwoofer Cut-off Frequency	26-160Hz
Speaker Impedance	Left/Right: 4-8 ohm \| Subwoofer: 2-8 ohm

Function Switch Instructions (Bluetooth Version)

Default mode: Bluetooth when power is connected
Bluetooth disconnected: Long press switch to switch to audio input mode
Bluetooth playing: Short press switch to pause/play

Package Includes: 1 × TPA3116 Power Amplifier Board

Troubleshooting & FAQs

Amplifier board has current sound and noise during use

Common causes: Poor power supply filtering, poor input signal quality, low-quality input cables, improper wiring connections, or shared power supply with other devices causing interference.

No sound output or no sound in one channel

Check: Speaker functionality, speaker cable connections, input cable quality and connections, proper output from connected input devices.

Volume broken and breaking sound when turned loud

Possible causes: Insufficient power input, poor speaker performance or damage, incorrect speaker power rating, or improper channel connections.

Speaker broken sound when subwoofer volume turned loud

Check: Power supply adequacy, speaker power rating compatibility, speaker bass performance quality, and speaker box structure.

Volume power not sufficient

Power output depends on: Power supply voltage, sound source signal amplitude, and speaker impedance. Any deficiency in these areas will affect performance.

Will the amplifier be damaged?

Risk factors: Reverse power supply polarity, excessive voltage beyond operating limits, direct AC transformer connection (requires DC conversion), incorrect wiring connections, or short circuits.

Note: Output power is related to supply voltage/current, speaker impedance, and audio input size. Higher voltage with sufficient current typically provides greater output power. Lower speaker impedance generally allows easier power achievement.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this product

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

William Brown

Australia May 10.2026

Helpful (189)

Fantastic 2.1 HiFi amplifier! The Bluetooth 5.0 connection is stable and the audio quality is superb. 2*50W+100W output provides powerful sound for my home theater. Easy setup with DC12~24V power supply. Excellent value, highly recommend!

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