Amplifier Decision - Audio Research vs Krell

Hi all,

I wanted to ask all the experts out here at Audiogon for their opinion before I make a purchase.

I have the big task of deciding to buy one of two amps:

Audio Research Classic 120 (both monoblocks of course)

or the

Krell KSA-250

I am torn between the two! Both are the same price and both are working perfect.

I have a Paragon 12 pre-amp. My speakers are Acoustic Research AR-7, but will probably change in the future.

I'd appreciate opinions and suggestions.

-d