Specifications:
Specifications Model: OEP30W Amplifier
Work: Class D ((PW14 modulation)
Chip selection: OEP3OWx2 (import)
Number of channels: Mono
Power range: DC: 7.5-24V
Quiescent Current: 11mA (12V power supply)
Shutdown Current: Recommended speaker: 30-100W (the bigger the better)
SNR: 102dB
Harmonic distortion: Amplifier Gain: 36dB (the board can be set to 26dB)
Input impedance: 1KΩ
Input impedance: 8-3.2Ω

Output Impedance:
30W THD + N = 10% (4Ω, 16V)
17W THD + N = 10% (4Ω, 12V)
15W THD + N = 10% (8Ω, 16V)
9W THD + N = 10% (8Ω, 12V)
25W THD + N = 1% (4Ω, 16V)
12W THD + N = 1% (8Ω, 16V)

Frequency range: 20Hz-2OkHz
Working temperature: -40-85 ℃  
Size: 18x 18x2.5mm (L * W * H)
NOTE: 4 ohms speaker does not recommend more than 16V power supply. Protection: Output short circuit protection (Troubleshooting immediately restore the parent).

Package included:
1x Micro Amplifier Module

• When amplifier powered on, the two speakers connected to the voltage between the pads is 0V, between the horn and GND pad , DC voltage of half the supply voltage
• Use 8 ohm speakers, the supply voltage can not exceed 24V, 4 speakers in Europe, the supply voltage can not exceed 16V, otherwise the chip easy to burn
• Try to use the speaker wire audio cable, 3 meters, if long cable connect speakers suggested that consideration plus diode (IN5819) to achieve the release of the self-inductance voltage protection chip
• 8 ohm speakers without adding substantially fins, less than 8 ohm speaker, if the chip temperature is higher than 60 degrees, due to stop work immediately, plus heat sink fan heat, otherwise the temperature will immediately burn the chip
• Speaker power must be greater than 40W, in order to properly test the amplifier, or affect the normal operation of the amplifier.

When amplifier powered on, the two speakers connected to the voltage between the pads is 0V, between the horn and GND pad , DC voltage of half the supply voltageQianson