Introduction to the Fosi Audio BT20A PRO
The Fosi Audio BT20A PRO is a high-performance Bluetooth 5.0 HiFi stereo amplifier designed to deliver exceptional audio quality. Featuring a TI TPA3255 Class-D power amplifier chip, it provides premium sound with ultra-low distortion, making it suitable for a wide range of passive and active speakers.
This manual provides essential information for setting up, operating, and troubleshooting your BT20A PRO. Key features include RCA and Bluetooth inputs, a PRE-OUT port for use as a preamplifier, and adjustable Bass and Treble controls.
Key Features and Specifications
- Model: BT20A PRO
- Power Output: 300W x 2 @ 4Ω
- Audio Input: RCA / Bluetooth
- Audio Output: Speaker Output / 3.5mm Pre Out
- Power Amplifier Chip: TPA3255
- Bluetooth Version: 5.0
- Frequency Response: 20 Hz - 20 kHz (±1.2 dB)
- SNR: ≥108 dB
- Terminating Impedance: 2-8 Ω
- Power Adapter Input: DC24V-48V
- Dimensions: (Refer to product page for specific dimensions)
Getting Started
Follow these steps for a quick setup:
- Connect the Bluetooth antenna to the BT20A PRO.
- Connect your passive speakers to the speaker output terminals using speaker wires.
- Connect the power adapter to the BT20A PRO and a power outlet. Ensure the power adapter's LED indicator is on.
- Before powering on, set the Bass and Treble controls to the center position and the volume to zero to prevent sudden loud noises.
- Connect your audio source via RCA cable or pair via Bluetooth.
- Power on the BT20A PRO using the power switch.
- Adjust the Volume, Bass, and Treble controls to your preference.
For detailed connectivity options, including RCA and Bluetooth pairing, refer to the connectivity section of the full manual.
Troubleshooting Tips
If you encounter issues such as noise, no audio output, or Bluetooth pairing problems, consult the troubleshooting section for solutions. Common issues and their resolutions are detailed, including advice on cable connections, device placement, and input mode selection.
Warranty and Support
Fosi Audio offers an 18-month limited warranty on parts and labor for the BT20A PRO. For support or warranty inquiries, please contact Fosi Audio directly via email at support@fosiaudio.com or visit their website at www.fosiaudio.com.
