Any High End Tube Preamps with *gasp tone controls?

ON equalizers incorporated into equipment as well as outboard have three things that affect the sounds that they alter. Frequency center, for example - the bass control may be centered anywhere from 30hz to 120hz (or more). This range also has slopes, i.e. fall off, and breadth. Variations in the bass control center and slopes controls the breadth. Gets kinda complex. Then there is other equipment which might center the bass control at 60hz, 100 hz, ad infinitum. But they all call it just plain old BASS. I've seen integrated amps which allow you to change the center point up to 200 hz. Wow, imagine that. Now there are tone controls in the mid-range and highs with accompanying options. 

The message is 1) Figure out what range of bass that you want to hear and 2) what your prospective units spec's are when it come to their tone controls. What you get is up to you. :-)

What 

@dhcod 

I just looked at your system.  Are you using an 8 watt per channel amplifier feeding older speakers?

Yes. They are actually 96dB. Pretty efficient. It's not the wattage that's the issue. It's the new rebuild of the amp and choice of tubes that have created a tone I really like but it's left me a bit bass shy... bass I had before with other configurations..

Pretty tough making bass with such low wattage. When I was running a low wattage 300B SE, I was using an active crossover and 200 watt/channel subwoofers. Now, I’m using 350 watt/channel into 89dB speakers and quality powered subs really made a difference.

I enjoyed reading about your speakers.  They seem to be a highly desirable vintage speaker.  So, I now understand that you are trying to put together components of the same era.  

I'm just trying to make it sound as good as it can. No real plan regarding vintage. If I had the space, I would be buying the Lamm tube amps. I know those work perfectly. Bass to die for. 3D imaging. Just awesome. They pop up used from time to time but when ever I'm about to pull the trigger, I realize our small loft is just too small for two large chassis.