I have an ARC LS-9 in front of my 4B-ST and I think that they make an excellent combination. I was fortunate to have been able to borrow an Adcom GFP-750, and later to audition a Rotel RC-1090 in my system. Believe it or not, I think that the Rotel was the better of those two overall, although my LS-9 is clearly superior to both the Rotel and Adcom in all respects. I would like to hear a Bryston preamp in my system, but the opportunity has never presented itself.
A remote volume control is mandatory for me. If it is not important to you, then you probably couldn't go wrong with an LS-3.
A remote volume control is mandatory for me. If it is not important to you, then you probably couldn't go wrong with an LS-3.