I am normally playing at low volume on a tube amp, either a Deluxe Reverb or an AC15. With a Tele straight into the DR I max out at about 2 or 2-1/2 on the volume knob. Of course when I turn it up significantly louder the amp sounds a lot better... but my brain can't tolerate that for too long. I assume part of the improvement is running the amp hotter and maybe part of it is hitting the speaker harder. If I spring for an attenuator, can I get a worthwhile improvement in tone? More harmonics and a little more grit? I've tried various boost and drive pedals and never found one that doesn't sound kinda canned to me... not a substitute for just turning the amp up. And, any suggestions on which attenuator? The expensive ones are out of the question.