Solution Overview
Liwei Electronics provides turnkey amplifier PCBA solutions for Bluetooth/USB audio devices — from schematic design and PCB layout to prototype tuning. Typical platforms are built on JL audio SoCs with a Class-D digital amplifier architecture, supporting Bluetooth audio reception, USB digital input, and IR/encoder volume control.
Core Capabilities
- Amplifier: Class-D digital amplifier, efficiency ≥ 85%, mono/stereo output
- Inputs: Bluetooth (A2DP/HFP), USB Audio, AUX analog
- Control: IR remote, rotary encoder, key matrix
- Power: wide-input, low standby power, over-current/over-temperature protection
- Voice path: MIC capture + HFP SCO uplink for intercom and KTV monitoring
Application Scenarios
- Desktop speakers, TV Soundbar, Bluetooth speakers
- Live-KTV speakers, portable amplifiers
- Gaming/comms audio terminals with voice intercom
Why Liwei
- Mature platform based on mass-produced JL audio solutions, shorter development cycle
- Flexible customization of power, interfaces and form factor
- Engineering assurance: EMC, thermal and reliability testing — protection before tuning
Engagement
Requirement → evaluation → schematic & PCB → prototype tuning → pilot run → mass production. Contact us or use the online message form for solution docs.
