CA-3169B 2.1 Channel Audio Power Amplifier Board with High Fidelity Sound and Bluetooth 5.0
Price:
negotiable
MOQ:
3pcs
Delivery Time:
3-7 work days
Brand:
CreatAll
Product Description
CA-3169B 2.1 Channel Audio 5.0 HIFI Power Subwoofer Stereo Equalizer High Fidelity Sound Power Amplifier Board
Product Overview
This is a DC-powered 2.1 channel audio amplifier board featuring TI's TPA3116D2 high-performance digital power amplifier chip. It supports 100W bass channel plus 50W left and 50W right channel outputs with Bluetooth 5.0 audio reception capability.
Key Features
- DC-powered 12-24V power supply using TI's TPA3116D2 digital power amplifier chip
- Parallel bridged bass channel (100W) plus left and right channel (50W each) outputs
- Bluetooth 5.0 audio reception with external audio input interface
- Built-in preamplifier with bass crossover processing
- Five adjustment potentiometers for bass volume, bass frequency, channel volume, treble, and function control
- Wide working voltage with energy-saving design (up to 90% efficiency)
- Compatible with switching power supplies, laptop adapters, car power supplies, and charging batteries
- Pre-soldered and tested finished board ready for installation
- Subwoofer cut-off frequency: 26-160Hz
Technical Specifications
| Dimensions (L × W × H) | 101 × 100 × 25mm (excluding potentiometer and socket projection) |
| Operating Voltage Range | DC 12-25V (current 3-4A, or 19-24V/4-5A, high power requirements 20-24V/8-9A above) Recommended: DC24V 4A power supply Note: DC no-load voltage should not exceed 25.5V |
| Bluetooth Receiving Distance | > 8 meters |
| Audio Input Sensitivity | 600-800mV |
| Frequency Response Range | 20Hz-20KHz |
| Speaker Impedance | Left/right channel: 4-8 ohm Subwoofer: 2-8 ohm |
Function Switch Instructions (Bluetooth Version)
- Plug in power - defaults to Bluetooth mode
- Bluetooth disconnected - long press switch to switch to audio input mode
- Bluetooth playing - short press switch to pause/play
Package Contents
- 1 × TPA3116 Power Amplifier Board
Troubleshooting & FAQs
Amplifier board has current sound and noise during use
Most amplifier boards using DC power supply do not produce current sound and noise. Main causes:
- Poor power supply filtering or incorrect power/audio input
- Poor input signal quality or abnormal audio source input
- Poor quality input cables, poor connections, damaged wiring, or suspended wiring
- Other playback devices in input connection or shared power supply causing noise
No sound output or no sound in one channel
- Speaker damage or poor speaker cable connection
- Poor input cable connection, damaged wiring, or improper output from connected device
Volume broken and breaking sound when turned loud
- Insufficient power input - confirm correct wiring and adequate supply current
- Poor speaker performance or damage, speaker power too small or too large
- Left and right channel speakers (+) (-) outputs are independent and cannot be connected to each other
Speaker broken sound when subwoofer amplifier volume turned loud
- Insufficient power input - confirm correct wiring and adequate supply current
- Speaker power too large or too small, poor bass performance, or speaker box structure abnormalities
Volume power not enough
Power is related to power supply voltage, sound source signal amplitude, and speaker impedance size. Any deficiency will affect power output.
Will the amplifier be burnt?
- Power supply positive/negative poles connected reversely
- Power supply voltage too high, exceeding board's limit operating voltage
- Connecting AC transformer power supply directly (must be rectified to DC first)
- Incorrect wiring or short circuits causing damage to key components
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Creatall Electronics Co., Ltd.
Location
Address:Floor 2nd.Bldg B. Xin Mao Industrial Zone,Xia Wei Industrial Area, Long Hua District, Shen Zhen City,Guang Dong Province. China
Contact Person
Alva Cheng