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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
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2004
Total Annual:
2000000-7200000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Shenzhen Creatall Electronics Co., Ltd
is a one of the leading manufacturer and supplier of electronics modules, specializing in audio amplifier modules, power supply modules, BMS battery protection modules, LED driver module and other related electronics skd products.
Our products have a wide ran...
Shenzhen Creatall Electronics Co., Ltd
is a one of the leading manufacturer and supplier of electronics modules, specializing in audio amplifier modules, power supply modules, BMS battery protection modules, LED driver module and other related electronics skd products.
Our products have a wide ran...
