Tube amp, more low end


I've just taken my first step into tubes, with a TAD-60. My speakers are Gallo 3.1's. I really like this amp! I can't believe how "real" the music sounds. It really is amazing. The one thing that I do feel is lacking however, is low end "slam", as well as control. I know generally speaking, this is a characteristic of tubes. But I'm wondering I there's an affordable tube amp ($1500-$2000), that will offer the magic of the TAD, but with some more low end control?

Also, the TAD is currently running el34's. Would switching to kt88's make much of a difference? If I need to spend $300 or $400 on better tubes, I'd just as soon upgrade the amp.

Than
ecruz
Since you like the sound of the amp you have; you might consider adding the Gallo TR-2 Subwoofer to the mix. You would essentially be bi-amping, with a 250 Watt amp, powering the bass. Much more "live" sounding bottom, than any tubes, or tubed amp(at an equivalent price), would provide.
Agree with Rodman. Consider Biamping. I use a tube amp to drive my Coax with a pair of inexpensive SS 300W plate amps driving my bass drivers cut over at around 60z. I love tube amps but very few will provide the level of bass slam or control as SS. I also only biamp the very bottom end. I've tried going higher but you run into coherence problems trying to integrate the tonal characteristics of the multiple amps.
Allot of guitar amps, like Marshall, use EL34s, so their ability to rock should be of little question.
Producing the sound of one electric guitar, takes much less juice than reproducing the sound of a band/orchestra, and all it's bottom end.