Cheap And Discounts 70W*5 Meixing Mingda MC-5S 5.0 KT90 Tube AV Power Amplifier HIFI EXQUIS Home Cinema Push Pull Lamp Amplifier Wholesale. Buy Directly From Merchant HYXin Audio Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.