Need to match a receiver to Spendor S5e


I happened upon a deal on some Spendor S5es that was too good to pass up. Now I'm running them with a Harmon Kardon AVR125 and they need some more power to really open up. Any suggestions on a A/V receiver that matches well with the Spendors?

Usage is 60/40 music to HT, although I do run my TV-viewing audio through the receiver. Budget is about $1300 for new, but would prefer somewhat lower than $1k to go used. Receivers I've looked at are NAD T763, Rotel RSX-1056, and Denon 3806/2807. All seem to have their pros and cons, all of which I can live with - but would like to know if any of these, or other suggestions, would be a good match for the Spendor sound.

Music listening is primarily jazz and rock - with Dave Matthews Band, Sting, and U2 about as hard as it gets.
murz
You'll need more power than any of those provide. If you must use a receiver, try an Arcam AVR300 with the 6/7th channels bi-amped.

I briefly powered a pair of S5e with a RSX-1055 and the sound was anemic at best. Even with more power I didn't find them the most dynamic sounding of speakers, so perhaps they may never open up for you.
I have the Denon 3805 hooked up to a very similar load - the Totem Rainmaker - and there are dynamics to spare, far from anemic. There is plenty of power in that amp to make them disappear.
Thanks for everyone's responses.

In general, what does one look for in matching a receiver to speakers? While I know the Spendors have a "warm" sound, should I look to pair them with a "warm" receiver? Or should I go with something a little cleaner/brighter? I've seen the NAD characterized as being on the warm side, while the Denon and Rotel are more in the neutral area.

Of course, everybody's taste is different - but I wondered if there were any "general" guidelines to go by...