You need to be careful.I sold original B&W 803 Nautilus. which are rated 90db +/- 3db.But a nasty impedance swing from nominal 8 ohm load (stated) dropped precipitously to 3.5 db and would eat my 4 watt EL34 40 watt which would run a 8 ohm to 6 ohm bottom speaker with aplomb.With power more is better and tubes given thier cost can end up with some disappointing matches.On other hand if you get to a pus pull tube amp rated at 80-120 (how about used Rogue 120's?) clip more softly and would run insensitive or fine low impedance.Thus many folks opt for tube pre's and SS amps.But if you can afford it step up to used Rogue,Quicksilver,ASL Hurricaines,VTL's etc which offer sane prices for watts provided.Tube rolling NOS is fun for pre's but cost prohibitive for output (though no driver tubes) in power amps.But some have better sound than other.EL34's are great for acoustic music and vocals,more expensive KT88's have better dynamics even at "X" rated power than other tubes.6550's are cost effetive.Get some separates and be it mix of solid state or better tubes all (over 20 years I have ad all iterations as other things in system or my whimsy changes).Alas it comes down to cash but even with "intro" Jolida you'd have liked,I think,all tubes if your speakers could have used ammount of power,to get that warm tube sound even though you might have sightly less tight bass and tightly rolled off highs.An all tube sperates or integrated (love my EAR 834 and buddies Cary SLi80 Integrateds)with speakers that work well with tubes and are your into music other than all heavy metal.
G'luck
Chazz
G'luck
Chazz