Define power hungry...B&W speakers

Lewinskih01, All,
please do not mis-read my post to mean that selling price is a direct measure of audio performance. it is not. In this case of the RB1080 & the MC275 it just so happens that the selling price does reflect the superior performance of one amp over the other.

Bombaywalla,

I think you misread my post. I was comparing the MC275 to the MC252, rated 250W per channel, solid state, by the same manufacturer, retailing at basically the same price from what I recall. From those two, in the same system, heard at the same time, with my same speakers, I opted for the MC275.

The reference to the RB1080 was used to point at the bass, where one usually reads comments saying tubes don't sound as good in that region. In this case the tubes sounded better even in the bass.

Obviously I was not surprised by the MC275 sounding better than the RB1080 - at the end of the day that is why I purchased it!

Not sure I agree with your comment about solid state amps being better for B&W. I know in my case it isn't, and I remember over at the Audiokarma McIntosh forum I used to visit long ago there was a technical guy from McIntosh who sweared by using MC275 as monoblocks to drive 803D.
And I remember listening to 802D driven by $30k huge VTL monoblocks that sounded outstanding. 802D are indeed power hungry and those VTL heaters could certainly output a lot of tube-Watts. But who would buy 30k amps to drive 802D?? Not me, even if I had the money.
Buying very powerful and outstanding solid state amps from McIntosh, Classe, Rowland, etc would be much cheaper, less bulky, and wouldn't generate as much heat...

My point being I don't buy B&W 800-series works better with solid state. They do need power, and power is more practical to get from SS than from tubes. That's all.

So, assuming my speakers line up with the 700 series, how many watts minimum and what current specs would you recommend? Where do I find those current specs on an amplifier or receiver?
Thanks again!

Tntate,

I thought by now, after twenty-something replies, it would have been clear to you there is no such answer.

An approach could be to search A'gon Virtual Systems and threads and look for what amps people use with your speakers, or very similar B&Ws, make a list, drop those beyond your price range, read about the amps left in your list, arrive at a short list. And by all means, try and listen to them. No need to go nuts about, at least in my view.

Why are you so focused on Wattage? Sorry if you mentioned this already - I don't recall reading it.

Your speakers call for 50 to 125 watts into 8 ohms and their nominal impedance is 8 ohms with a low of 4.6 ohms. Buy an amplifier that has 50 to 125 watts per channel into 8 ohms, and that is 4 ohm capable. Do that, and the spec sheet on your speakers will match the spec sheet on the amp. Problem solved.