Tube Amps Watts vs SS amp

Can someone explain is there is a difference between the watts of a tube amp vs vSS amp, Looking to get a tube amp ,but i see that the watts are much less than the SS amps, So how do these Tubes amps with 25 -70 - wpc drive these high end speakers, I have a vintage pair of AR 9s and 2 mcintosh MC2200 amps in mono (400 WPC) to drive these ,what tube amp will power these under 3-4k new or used, ThanksĀ 
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Showing 1 response by belvedere2

VTL 300 Deluxe would work if you want tubes. Personally my AR-90s never really sounded that good with tubes. What you need is high current SS. I like Threshold myself. Using a 550E at the moment but my 300 worked well. I'd love a pair of SA/1 but need the coin.