Class A amplifier choice, need suggestions


What is your favorite class A amp and why? There are many here on Audiogon... Levinson, Krell, Pass Labs, Plinius and an occaisional Accuphase A50V. I am driving Proac Response 3.8s (88dB efficiency). I recently auditioned a Pass Aleph 5 and was stunned by the presentation at only 60wpc.

Your input is much appreciated!
blueswan
Gvatchna, you beat me to it. IMO, the Kraft ref 250 class A stereo should be sufficient for the 3.8's. I heard mine driving a slightly bigger Proac and was very impressed by those speakers.

But, Detlof's Jadis -- ahhhh.
wait-a-minute,
class A in terms of rating or class of operation?
basing on the above answers I believe that class A in terms of rating is being searched.
plinius(basically any model) is a great choice when driving low-impedance speakers. SA250 has a long margin of class a(upto 35W?) and than switches to B for more current. McCormacks are all bright and extra-coloured. Pass Aleph 5 is great but has a bunch of limits of performance if played something more than chamber or small-band music.
another great choice is GamuT D200.
Solid State Amplifier: Pass Labs X350 or higher
Vaccum Tube Amplifier: Audio Research VT200 or higher
My bad...
I am courting suggestions on the purchase of a class A biased amp. Evidently, many of them are also Class A in quality.

My apologies and many thanks!
Sleeper of Class A amps: Yamaha M80 The whole M series is awesome. It was just as clean as my Threshold, just not as warm. Handles 3 sets of speakers and has built in gain control. Awesome bargain.