
Do you have a question about the Fosi Audio BL20A and is the answer not in the manual?
| Power Output | 100W x 2 (4Ω) |
|---|---|
| Input Impedance | 47kΩ |
| Amplifier Type | Class D |
| Input Mode | RCA |
| Frequency Response | 20Hz - 20kHz |
| Terminating Impedance | 4Ω - 8Ω |
Troubleshoot common causes of noise during music playback for Bluetooth, U-Disk, and AUX inputs.
Diagnose and resolve issues where no audio output is present despite all connections being made.
Steps to resolve problems when a Bluetooth device fails to pair with the amplifier.
Identify and fix intermittent Bluetooth connection problems.
Diagnose why one audio channel might not be producing sound.
Troubleshoot issues preventing music playback from a U-Disk.
Address rustling or static noise issues when playing from U-Disk.
Steps to diagnose and fix problems related to the amplifier not powering on.
Confirms if the BL20A can function as a preamplifier and where the PRE-OUT is located.
Clarifies connection options: 2 speakers, preamp, or simultaneous connections.
Tips to improve sound quality, including cable checks and EQ adjustments.
Diagnose and resolve issues with audio cutting in and out during playback.
States whether the BL20A supports advanced Bluetooth codecs like aptX and Low Latency.
Addresses the safety and feasibility of leaving the amplifier powered on continuously.
Clarifies that only one audio input mode can be active at a time.











