The following slew rates (in Volts/micro-seconds) are from the Sound and Vision 2002 Buyer's guide:
and some are in your price range list price given
Parasound HCA-1000A (130) $650
NAD 218THX (100) $1200
Belles 150A/2 (50) $1200
Jeff Roland Design Group all models listed as (30)
B&k all models listed as (14)
The fastest listed is
Bel Canto all models listed as (600) $$$$
The slowest listed is
YBA all models listed as (3)
and
Odyssey Stratos listed as (1)
Hope this helps, probably not
Regards,
Rich