@patrickdowns figured I’d throw in my input.
I had 3’s for 30 years with sending them in for upgrades 3 times, the last time a full upgrade to Signature 3 spec on all parts. ( Richard’s answer when I asked what would be different before I sent them was “ the only thing you will get back from your speakers is the wood, the frame and maybe the cloth”)
I was thinking about the switch to Treo’s and went and listened to them ( New Jersey dealer, well thought of) and after my audition I went to look at some finishes in another building with him ( basically deciding on what I was going to buy) and he had some Harbeth SLH 5 Anniversary speakers set up that he had on commission. I had never heard Harbeths so I asked for a listen.
I ended up buying a pair of the Harbeth SLH 5 Anniversary about two years ago.
I loved my Sig 3’s and liked the Treo’s which to my ear had similar sound but just cleaner with more detail.
The Harbeths are to me even more detailed and incredibly realistic while being not fatiguing in any way. The first day I had the Harbeths they seemed almost too detailed, it was like the Sig 3’s had been more blended…? But after a few hours I haven’t looked back in any way.
The real input is to just get what sounds right to you. Just give your ears a touch of time to adapt if the sound is different at first. For me hearing the Harbeths that first time they just seemed effortlessly detailed and they just stuck in my brain.
Enjoy!