I do have good separates and recently bought the Pass Labs INT-60 for the summerhouse. Now I am happily using the Pass in the main system for several weeks already before it goes off to the island - just because it is so nice. Will drive your Dyns with ease, remember Watts do not equal Watts.
My .02 or less, if you are just building up your system and need to invest into several parts of your system within a short period of time, you are better off with a good integrated. Besides, the nice thing about the INT-60 is, should you decide to add a pre at some point, it will allow to plug in your pre into the Pass and just use the power section.
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