Audio Research REF 110 or Ref 75


I have an ARC VT100MK2, and a pair of Wilson Watt Puppy 6.
Considering upgrade and was wondering what I would gain buy either of these amps. I have all ARC pre / CD and transparent cables.
What I would like to gain is a bit more control in the low end. A tighter bass punch if you will. While still maintaing the liquid tube sound in the mids.
I listen mostly to classic rock and jazz at lower volumes ( around 80 db ) sometimes I go louder. I considered a solid state amp, but I do love the sound of tubes.

Thank you
vdosc
You'll get more power, of course. More importantly, though, it should be cleaner sounding. The VT100 is great, but it does have a bit of an electronic haze in the higher frequencies. Honestly, its not very bad and I didn't even notice it until I put it next to amps like a VAC 30/30 and an Ayre V-5. Other than that, just make sure your preamp is up to the task. If you already have a great amp like your VT100, quite often a new preamp can be a better upgrade.
Thanks, I have a Audio Research LS26 Pre amp. Its not a REF 5 which I one day would like to have. But I assumed my amp being older would be the weakest link.
Vdosc,
Are these the correct specifications for your speaker?

Nominal impedance: 4 ohm
Woofers: 2 - 8 inch
Midrange: 1- 7 inch
Tweeter: 1 - 1 inch inverted titanium dome
Sensitivity: 92 dB (1 watt @ 1 meter)
Minimum Amplifier Power 7 watts per Channel
Weight: System Net: 324 lbs
Frequency Response: 21 Hz - 21 kHz (-3dB)