400 watt amplifier, 2.0 version مهار صنعت پارس - MSPO منتشر شده در تاریخ 1397/11/19 Due to the success of our first 400 watt amplifier, which at this moment has surpassed one million views, w ... Due to the success of our first 400 watt amplifier, which at this moment has surpassed one million views, w همه توضیحات ... #تحصیلات_و_یادگیری #amplifier #sound #audio #power_amplifier #rockola