Fastest high-current SS amp below $1000 used?

Not sure it's "the" fastest but the Job stereo is certainly very fast and sounds very good.

The Sim Audio W-5 is a fast sounding amp and has great bass control for your slow woofers. Under $1000 try on of the McCOrmack DNA-1s.

Happy Listening.

Probably some digital amp. Their output transistors (high speed switching fets) go full on to full off at about 500KHz. I really like the sound of my CarverPro ZR1600, but I would not give slew rate all the credit.

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