Dynaudio S5.4 and ML No.436?

I wouldn't do anything until the speakers are broken in. It can take up to 200 hours before they sound their best. I'm running mine with a pair of Pass Labs Aleph 1.2's and there is no hint of brightness. I don't think the amp is the problem. It may be the room or it may be your source components, preamp, or your cables. I would give it some more time before I do anything. As I said before I don't think the amp is the problem.

What were your speakers before you got the Dynaudios?

Thanks for the inputs, X350 is a good amp, but I like a little fast sounding than it, very detail without forward and bright, maybe a little warm side of neutral, how does ML 436 compare to X350? I used to have Dynaudio 3.3, the S5.4 are more detail than 3.3.

You might want to look at an Edge amp.

What about the cyrus 8?