recommend an 8ohm preamp for 2x 400w speakers?


Hi all!

I’ve just purchased 2x Yamaha A15s (which are 400w RMS 8ohm passive speakers), and I was wondering if anyone can recommend a suitable preamp to match?
I’m pretty concerned about price, so not after anything too fancy. SpeakON connectors preferred, but not mandatory.
Thanks!
scott_musician
The XLS 1502 is scary good and a threat to all the over-hyped and overpriced hi-end amps! 
OP:

So you bought professional speakers.... are you setting up a DJ rig, or using them for home? 

Erik 
Mostly, they'll be used with a 3x piece jazz band, at small to medium sized gigs (weddings, cafes, etc). Sound will be coming from a Tapco 220FX mixer, which only has traditional 1/2" jack output. I've not tried yet - should I just get some headphone jack <-> SpeakON adapters, and plug directly in?