Ideas for used SS amp

Moscode 401HR. Excellent match with the VR4 HSE.

IMO, the Moscode's tube rolling flexibility with the input and driver tubes
helps the VR4 HSE's top end, which can be a touch grainy with pure solid
state amplification, IMO

However, the Levinson and Pass are both good options.

Clayton amps might be worth a look as well.

I was planning on using the one V12 for the top end and a used SS for bottom,right now I'm using 2 V12's.

If it's just for bass, then why not get a used Hafler and save some big $$$.

2nd the Hafler suggestion. ie:(http://cgi.ebay.com/HAFLER-9300-AMPLIFIER-AMP-1200-WATT-HOME-THEATER-MOVIE_W0QQitemZ230373733135QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item35a358330f&_trksid=p3286.c0.m14) The DH-500 will drive you up a wall with it's fan noise. Other than that; they're a potent bass amp. The TransNova 9300/9303 and 9500/9505 are all fast and testicular(with no fan) which makes them excellent woofer amps. You'll have to attentuate whatever you get to match the drive of the amps. A Synergistic Research AC Powermaster will make a world of difference with one of these, BTW.