What would you buy


I am a tube lover. I currently have a Rogue Chronus Magnum and Vandys 2 sig E. I'm thinking upgrading my system. I believe I can get 1K for the Rogue and add 5K for a total of 6K available to spend. planning to keep the Vandys but I feel that my taste desires a little more bass than what I'm getting now. Vandys are great in the mids , voices etc but it lacks some deep bass. The Rogue doesn't have an output for a sub woofer. Musical taste is classic rock, jazz and blues. Here is the question with 6K to spend in amp/pre, integrated or mono/amp, what would you buy?
128x128lobinero
the question is has any one played Vandys with Mc Gary SA1 or Prima luna 30 wpc ?
Consider a REL Serie S with a speakon connector.  No sub out required.  You can even go wireless with the Longbow adapter.   
the Vandersteen efficiency was measured by Stereophileto be around 86db.  You need lots of power, I should know as I owned Vandersteen 2CE signature Ones for close to 10 years.  Tube watts are no different than SS watts.  Watts are watts, doesn’t matter how they are derived.  The tube amps clip much more gracefully  and that is the reason they sound more powerful. 
great advice to call Johnny Rutan, he can take you thru various options to make your Two’s sing. The acoustic couple on the rear plays pretty low and needs to couple with wall..and IMO requires an amp with some grunt and damping factor to control it.

IF your Rogue has pre out/amp in you can use Vandersteen high pass filter and a Vandersteen model 2 ( a pair used ) or one Model 3 sub w 11 bands kf analog bass EQ.with that setup you take load off main speakers and amp and get same transfer function to both subs and main. 

have fun enjoy the music.
 " The Rogue doesn't have an output for a sub woofer."  The Rogue does have a subwoofer output!