Soundstream picasso 4.640 4 channel amplier handcrafted in USA. Exterior 7/10, interior 9/10. Excellent quality with high end bass with sealed box, bought new RM2xxx and now letting go only at RM500 to clear up my space. Very good low bass especially for those in love with sound quality. PM me for those who interested and strightly COD within Cheras area due to the weight of the item unless buyer willing to pay for the postage charge.