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AJMRTC 2Pcs CT14 Bluetooth 4.2 Stereo Amplifier Board, Class F 5W+5W Audio Amp Module, 3.7V-5V Power Supply, Micro USB Charging Port, PCB Antenna for DIY Bluetooth Speaker, Audio Refit Project
- 1. Class F stereo power amplifier design, 5W per channel (5W+5W), high efficiency and clear sound output
- 2. Bluetooth 4.2 A2DP audio receiver, auto-reconnect to paired devices, stable transmission up to 15m open area
- 3. Dual power options: Micro USB 5V input or direct 3.7V lithium battery connection with onboard charging circuit
- 4. Built-in PCB trace antenna, compact size, supports 28 speakers for small speaker cabinet modification
- 5. Package contains 2 amplifier boards, perfect for bulk DIY audio making, student electronic practice and speaker upgrade
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Overview
Specs
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CT14 mini Bluetooth amplifier module integrates Bluetooth audio reception and power amplification on one tiny PCB. It directly drives speakers without extra amplifier. It supports auto reconnection after power on. The Micro USB port can power the board and charge external 3.7V lithium batteries. Great for rebuilding old passive speakers and building portable wireless speakers. Note: Do not short speaker outputs or parallel negative terminals, or the amplifier chip will be damaged.
Specifications
- Model: CT14
- Bluetooth Version: 4.2
- Amplifier Type: Class F
- Output Power: 5W + 5W
- Operating Voltage: DC 3.7V 5V
- Speaker Impedance: 2 ~ 8
- Transmission Distance: Max 15 meters (open space)
- Interface: Micro USB power & charging, left/right speaker terminal
- Antenna: Onboard PCB antenna
- SNR: 90dB
- THD: <0.1% @ 1kHz
- Dimension: 40mm × 20mm
- Quantity: 2 Pieces
- Application: DIY Bluetooth speaker, passive speaker refit, electronic audio project
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by ConnectFlow USA Return Policy
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