LQ-AMP10W-2*5W     

output power:  5W/2Ω    3W/4Ω   1.8W/8Ω

電源オンオフ時のポップノイズは低減されています。

ネジ式端子盤が設けられているのでハンダ付けしなくて済みます。

AB級動作に切り替えが可能らしいのですが、デフォルトのD級ですよね。

MODE H: D-Class        MODE L:  AB-Class　　　D／AB級　

SD       H: Disable         SD       L:  Enable　　　　シャットダウン

MUTE  H: Disable         MUTE  L:  Enable          　ミュート

Features:
Dual-channel digital audio amplifier module with DC 5V working voltage & 5W + 5W output power.
Equipped with black copper terminal blocks, imported KEMET speaker capacitor, large-capacity filter capacitor for channels and gold-plated audio input terminal blocks.
With a input port that is available for 3.5mm audio cable, and a volume control knob(clockwise to turn volume up and counterclockwise to turn volume down).
Features over 90% high efficiency, less than 10% general harmonic distortion, low quiescent current and noise suppression.
Designed with input reverse connection protection, short circuit protection, over heat protection; what's more, EMI is allowed to pass.

Additional function:
1. Available to connect amplifier type to choose the different function (MODE: high electricity level is Type D, low electricity level is Type A, B. Factory defaults high electricity level)
2. Available to add an external Shutdown (SD: the chip will be Shutdown at low electricity level, factory defaults high electricity level)
3. Available to add a Mute (the chip will be in mute mode when low electricity level, factory defaults high electricity level)

Specifications:
Efficiency: >90%
General harmonic distortion & Noise: <10%
Working voltage: DC 5V (please don't use more than 5V, or the IC will be burnt)
Output power: 5W stereo (2Ω 5V)
Input method: single-ended
Item Size: 5.5 * 3.3cm / 2.2 * 1.3in
Item Weight: 23g / 0.8oz