I’d place an order for BLACK, but received a Silver. Seller response was fast on the chat, but each time of assurance from seller the item was not shipped until the final day of the waiting week after reminding the seller. THE GOOD: The Pre-amp sound good like you’re seated in front of the performance except there is no bass punch like the original source from MacBook Pro. You can hear instruments not audible before this Pre-amp. THE BAD: As mentioned no bass punch. The L and R channel are wrong. The L become R and the R become L,, or simply reversed your headphone to listen correct channel. the L socket for tube is loose.
I’ve to correct that somehow it was ordered as Silver, when what I wanted was a black. In this case, seller did not make any mistake on sending me a Silver. I would give add another star for that. 3 star. L and R channel are mess up! No bass punch, but feel like you’re sweating in front of a performance. Read my above review.
comes with US DC adapter. Already tested good.