How to fix Fosi Audio Amplifier if Bluetooth is intermittent?
If the Bluetooth connection on your Fosi Audio Amplifier is intermittent, try using another Bluetooth device to test the connection. Make sure there is no interference from other electronic equipment between the BT20A and the audio source. Position your device closer to the BT20A. Also, try replugging the power adapter.
Why is there no sound from my Fosi Audio BT20A Amplifier?
If there is no sound from your Fosi Audio Amplifier, first check if the power supply cable is connected to the BT20A and if the power indicator is on. Ensure the BT20A's indicator light is on when powered. Verify that the BT20A and your audio source are turned on and not set to minimum volume; if possible, test with another source. Check the speaker wire connections from the audio source to the amplifier for correct connection. Also, ensure the cable isn't loose or damaged, as incomplete connections can cause this. Finally, if using Bluetooth, ensure it is paired, as Bluetooth playback interrupts RCA input; disconnect Bluetooth to use RCA input.
What to do if my Fosi Audio BT20A sound is cracking or makes a lot of electric noise?
If your Fosi Audio Amplifier is cracking or making electric noise, ensure all cables are completely pushed into the devices; incomplete connections can cause this. Remove all inputs to check if the cracking disappears, as the noise may originate from the audio source or input cables. If you're not using the original power supply, replace it before testing, as some power supplies have large interference coefficients that cause current sound.
How to fix Fosi Audio Amplifier if power indicator does not light up?
If the power indicator on your Fosi Audio Amplifier does not light up, check that the AC power cord is securely connected to both the power supply and the AC power outlet. Ensure the AC power outlet is supplying power, and the power LED on the power supply stays on. If possible, try another 12-24V DC power supply. If you confirm the power supply is defective, contact support for an exchange.
How to improve the sound quality of my Fosi Audio BT20A Amplifier?
If the sound quality from your Fosi Audio Amplifier is not good, first ensure all the cables are fully connected. Adjust the treble and bass controls on the power amplifier to achieve the desired tone. Try changing the sound source and cables to test if that improves the quality.
What to do if Fosi Audio Amplifier sound cuts in and out?
If the sound on your Fosi Audio Amplifier cuts in and out, try reducing the sound level of the audio source. You can also try changing the audio source to test if the issue persists. Reduce the volume using the treble and bass knobs on the BT20A. Ensure that the positive and negative poles of the speaker output do not touch each other, as this can cause a short circuit.
Why is the volume extremely low on my Fosi Audio BT20A?
If the volume from your Fosi Audio Amplifier is extremely low when using turntables, and your turntable does not have a built-in preamp, you need to add an external phono preamp before connecting the BT20A. If the turntable has a built-in preamp, ensure you switch the preamp on before connecting the BT20A.
Why does Fosi Audio Amplifier make serious noise when used with a radio?
A common feature of Class D power amplifiers is that they can cause serious noise when used with a radio.
Details the controls and indicators on the front of the amplifier.
Outlines the input/output ports and antenna connection on the rear.
Provides essential steps for preparing and connecting the amplifier.
Instructions for connecting passive speakers using bare wire.
Illustrates how to connect speakers using banana plugs.
Guide on pairing a Bluetooth device and playing audio.
Solutions for intermittent Bluetooth connectivity problems.
Troubleshooting steps for when the amplifier produces no sound output.
General| Amplifier Type | Class D |
|---|---|
| Bluetooth Version | 5.0 |
| Frequency Response | 20Hz - 20kHz |
| Signal to Noise Ratio | ≥98dB |
| Impedance | 4-8Ω |
| Chipset | Texas Instruments TPA3116D2 |
| Input Mode | Bluetooth, RCA |
| Speaker Impedance | 4-8Ω |
| Output Power | 100W x 2 |
| Power Supply | 24V/4.5A |
| Termination Mode | Banana Plugs |
| Outputs | Speaker Output |
| Bluetooth Range | Up to 50ft |
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