Speakers for triode tube amps

Jim WIney and Bill Johnson solved this in the 1970's.

Audio Research and Magnepan marketed and sold their products in tandem.  They are more accurate than any other combo.

There's the answer for you--no big mystery here.

Cheers!

It is interesting that Magnepan is mentioned here, because it represents what is supposedly one of the least compatible speaker model for low-powered tube amps.  Maggies supposedly demand high-power high-current amps.  I've heard Maggies (cannot recall the model) with a tube amp, which was probably a 40-watter, and the combination sounded quite good in a smallish room.  The time I heard an obviously incompatible Maggie setup involved a friend hooking up a single-ended 45 amp (1.5 watts/channel) to 3.5 Maggies just for laughs--it sounded quite good at lower volume, but the sound fell apart at volume levels approaching a normal listening level.  

I have a customer who is running Tekton's.  They can be driven and sound good with a 20w SET.  His space was a bit too big though.  They are not as efficient as you might think so I would not plan on sitting more than 8-10 feet from them and hopefully the room is not too big.  

Zu is a but more efficient, are a bit smaller than Tekton and sound very, very good.  I have had some in on trade and ran them with an 845 based SET and they were INCREDIBLE.  Same customer also has a pair of Zus and they are a bit more efficient and just incredible.  They would be at the top of my list. 

How big is your room?  My speakers have a min impedance of 7.3 ohms are are extremely tube friendly but they are pretty inefficient.  I run them with 45w at shows which is more than enough in a 13 x 20 room but...

None of these are horn loaded. 

I would tell you that Avantgarde Zeros XDs are incredible but they are horns.  They don't sound shouty like horns but it is a big, wide speaker which I am sure rules them out though they sound nothing like Klipsch or JBL. 

Russ69,, said - - " Unless you play loud a 25 watt tube amp will get the job done with just about any loudspeaker. "What an absolute load of RUBBISH! You are so SO far off the mark here that I'm amazed that you haven't been flamed over that dumb comment! Ridiculous!