Warm romantic & detailed

Soooooo would it be fair to say that in a well treated room I'd be fine with the 40.1's

Room size 13W x 20L (speakers on short wall) 

40.1s i had overloaded my room so i got rid of them

shl5+ worked better for me

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back to your original post subject title - "warm romantic detailed"

https://www.usaudiomart.com/details/649684310-spendor-sp-91-beautiful-rosewood-pair/

these are a likely path to true satisfaction - i had sp100’s (these are the floor stander version) should never have sold them ugh - they were exactly that....

The Harbeth M40.2 speakers on their own , would still be considered a warm romantic speaker in the general scheme of speakers. They are a lot more room friendlier than the M40.1 version. 

Vu of Deja Vu in Wash DC (a major Harbeth dealer) maintains the 40.2's need a minimum of 2' to the sides and really 3' behind them.  I don't have experience with 40.1's but it seems likely they might need more.  My 40.2's sound "just right" to me, neither too syrupy nor too incisive.

I am very sensitive to the problem you have and one thing that I’ve settled on is NO metal dome tweeters. I do much better with soft dome tweeters or a well controlled EMIT.
That said, I just bought a pair of Dynaudio Evoke 20 speakers and I’m in love. They are smooth and very listenable. Gone is the edge that annoyed me with my previous less expensive but well reviewed speakers. While I am limited to a book shelf speaker because of room confines. They also make floor standing 30 and a Evoke 50 models. I believe the whole line has the sound that I now like but maybe you can find some reviews. The top of the line floor stander Evoke 50 is $5k a pair and the Evoke 30 about $3500 a pair. While my Evoke 20s go for $2200, the addition of a couple small T/i REL subs would go a long way toward replicating the floor standers bottom end dynamic, bringing the total investment to around $3500 or $4k depending on the sub. If I could use a floor standers I’d be hard at work justifying the purchase of a pair of 50s. I also believe they make a center channel speaker for inclusion in AV setups.