• operation is based on the TDA7492P amplifier circuit
• Bluetooth connection implemented with CSR8635 module
• Supply voltage: 8-25VDC via DC21 connector (e.g., an old laptop power supply will work)
• realistic output power approx. 25W
• Suitable power range can be selected with DIP switches
• Speaker output impedance: 4-16ohm (8ohm recommended)
• Speaker connections via terminal block (L+R)
• Buttons: PLAY, BACK, NEXT, VOL+, VOL-
• PCB color may vary between batches

Examples of use:

• DIY Bluetooth speaker
• Discreet modernization of old audio equipment