I owned a Krell KAV-300i for a while. It had a grainy edge that made it hard to listen to. I think A Vincent SV-237 would give you more of what you're looking and you have the option of rolling tubes in the preamp section. Simaudio makes some really nice integrateds, but they are going to be more neutral (are you sure you want "bright"?), but lots of detail and definition.
Is it my amp or my speakers?
I've been dissatisfied with my system of late--wanting a little more brightness and color--and can't decide if it's the amp or the speakers, or both. Here's the set-up:
- Krell KAV-300i integrated
- Cyrus CD-T
- Schiit Gungnir DAC
- Tekton Lore speakers