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
My first question to others is... how can we know what will work without knowing his speakers and room size? My speakers can put out truly wall-shaking bass with 25-30 watts. There are plenty of amps at $2k which can do that.

OTOH... if Gooddomino still has Tyler F2s as per a previous thread, then with 89db sensitivity and a bottom end which only goes down to 44Hz, I might suggest that he'll get better bass out of SS. However, he would get truly great bass only with another pair of speakers.

Gooddomino, if you want both tubes and the Tyler F2s (if you still have them) and your room is not too big, I can suggest that you go for the highest power tube amps you can find in your price range; you might try older VTLs, Manleys, or Audio Research (probably only the VT100 for that price).

In any case, I'd be interested in hearing how you fare...
Post removed 
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.