Looking for a speaker for my LM 845 Premium

For a really inexpensive solution, get the Schiit Loki equalizer. (a little over $100.)
Doesn’t degrade the sound, but cures a lot of ills.

Klipsch Cornwall IV

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Best recommendation depends on a few variables.   How large is your listening room ?  What type of music do you listen to ?  How loud do you listen ?   Do you care about deep base reproduction ?

I understand why EU sourcing is important from a cost consideration.

I prefer low to moderately powered tube amps, and I purchased a Triode TRV 845 a few years ago.  Triode amps are made in the same factory as LM amps.  Designs are very similar.   

For a long time, my main speakers were Triagle Titus 202. These are stand mount monitors, with limited deep bass extension.  There are 92db efficient, with simple crossovers.  Transient response is lightening fast, and treble extension is outstanding.  They can sound shrill with digital or hard SS, but are an ideal match with tubes, and of course SET.  

The entire Triangle line is a good match for tubes, presenting above average sensitivity and excellent clarity.  

Triangle is a French company FYI-

I upgraded to KEF LS50 and enjoy these for different reasons- better detail retrieval, similar transient response and deeper bass.  But they are not as sensitive.

If you listen in a small room, at moderate volume and do not require deep base then I would suggested auditioning a pr of ls3/5a.   Within their limitations, they are outstanding speakers, and work very well with tubes.

Harbeth 30.2 sounds just amazing with this amp, I know, I've heard it plenty. The LM is a really good tube amp, a real keeper.

I had a 211 based LM amp (LM-218) that paired extremely well with Omega Super Alnico Towers.  Loved the sound... miss the sound; wish I had held onto them.  Likely very different from Tekton.