amplifier for large advents?

The amps one already have sitting in the attic are definitely the right ones to try! :^)

Dfwlistener: The crossbraces get glued inside. Pretty easy to do even for a klutzy non-woodworker like me. Buy some maple 1" x 1" stock at home depot.. just measure very closely and over cut not undercut until piece fits snub between front and back baffles.. glue in with wood glue..
I used somewhat inexpensive "gold plated" connectors from parts express as I did not want to spend hundreds on connectors. I used the Swedish made 12 gau wire from Madisound web site with good results (I've used this in all my speaker rebuilds.. inexpensive and sounds pretty good.) I used a couple of Kimber caps to get the right value, this improved midrange warmth and glow. There was a guy on ebay did crossover kits for these and others.. for AR speakers as well. Also he had some really good vintage looking grill cloth for AR's that I used on my advents and they look great. One thing I did was remove the inner black grill cloth to reduce the amount of fabric 'blocking' the sound. I also removed the fried egg tweeter metal grill, you have to be (obviously) very careful with this, but it opened up the tweeter dynamics a bit.

Hi Dfwlistener,I have a pair of Large Advent speakers and I drive mine with a vintage Marantz 2275 receiver and they sound wonderful together. You ought to consider this receiver , I think that you would be very surprised.
Carter