Tube amp with SS like bass


I demoed a used BAT VK-60 amp and while the mids and highs were very good I just could not warm up to the bass. I have the VK-200 and am spoiled by its wonderfully tight bass response.

Can I have what I'm looking for under 2K, preferably, 1.5K?

Contenders are:
Butler 2250
Audio Research VS-55
BAT VK-55
Rogue 90

Any others to consider?

Jack
gooddomino
Haven't been able to respond to my own thread due to a GI virus that had floored me. I really like the F2 floorstanders but will go with something bigger in the Tyler line, with a bigger cabinet and woofer in the next six months.

House is very open with an effective listening volume of about 1800 sq. feet up to a 22 foot ceiling.Stereo room is a carved out nook in this loft style arrangement of about 400 sq. feet.

How about the Audio resaerch 100.2? Sounds like this amp was a winner in the midrange.
this is the 10 year old father of the VK-55 and has deep tight bass. Looks like new, has low hours on the tubes, and has original box and manuals, I'd let it go for $900.
Of course I meant the Audio Research 100.2 SS amp. May give me the best of tubes and SS. But do I really get an advantage over my VK-200? Guess I'd have to buy and try.
Atma-Sphere OTL amps deliver the tightest and most articulate bass of any amps I've heard; all the positive benefits of solid state control with the ability to reproduce harmonic overtones, timbre and resolution only seen with the best tubes. Unfortunately for your budget limit, you'll probably not find an M-60 MkII under $2500 (and the MA-1 for considerably more). But if you're able to stretch your budget and if you have a speaker compatible with the M-60, I think you'd find what you're looking for.
.