Next step: tube pre or tube power amp?

Keep in mind the power required for dynamic peaks in music. An "average" listening volume of 91dB can reach 100+dB peaks pretty easily. At a 107dB peak on 91dB speakers, the amp is putting out 64 wpc, and the requirement jumps to 128 wpc for a 110dB peak.

Also keep in mind the sensitivity number is measured 1 meter from the speaker drivers. So, 91dB measured from a listening position in a medium to large room will translate to a higher measurement at 1 meter from the drivers.

In my medium size room, it's pretty easy to approach a decibel level that requires 60wpc from the amps.

09-09-09: Stevecuss
I'd prefer a tube power amp for WAF and convenience - I can hide it behind some fake greenery in our AV cabinet...

Tube amps that I've owned throw out more heat than any Class A SS amp I've owned. So you may not be able to hide a tube amp in your A/V cabinet. Just something else to think about.....

Hi Jmcgrogan2,

thanks for that input and I'd considered heat. Our AV cabinet is open - a cutout in the wall of the house, essentially, so it has plenty of ventilation above and around it. I use a fake green planty thingy in front to cover the front of it. Who knows, maybe my wife will love the glow of tubes...

I would go for a tubed preamp first, although a tubed power amp would be a natural step forward in time.

There are good options in the used market from Melos (SHA1 sig), Audible Illusions or Counterpoint.

I have just seen an Aranov preamp here at AGON that looks like what you are looking for...(I do not know the seller and/or interested in pushing this item) just a safe disclaimer. :)