I received an amplifier which was defect at arrival. Seller does not take responsibility in return shipping and refunding the order amount. Please be warned, this not a correct way of dealing. Would never buy again here.
This looks like something cheap at first glance. Because the panel resembles the original, but the behavior is different from the original. It is different from the number of ICs in the photo, and there are places where the pins of the IC are jumpered with solder. However, the sound is very good against the content. I think that it is a preamplifier worth the price.
This is an absolutely useless product to buy. It does not work as described in the item. And the shop support is the worst.