What can you tell me about First Sound pre-amps?

I misplaced the acronyms, referring to FS in the first instance, as in strong dynamics, stark, clear sound.

I suppose it depends on taste at higher levels, but the CAT jumped out in front in terms of musicality and rightness, immediately inviting, vibrant and silky smooth but not at the expense of anything else that comes to mind. FS on the other hand, had some strong attributes, but was not strikingly musical, beautiful or involving, IMO, as someone who goes with first impressions and then confirms them..

In comparing FS with CAT, i found CAT the clear winner.

Very different-CAT with strong dynamics and a stark, very clear sound that cuts through-if you have the right system that would complement and can handle those attributes, might be an excellent match.

The CAT on the other hand, immediately reeks of class and musicality-smooth, lush yet concise, vibrant. The First Sound might be 2% clearer, but IMO the CAT's vibrancy and aliveness is considerably more engaging, to me..

Immediately i thought "here's a winner".