25 year old polk 2.3's will I hear an improvement?

Merganser - you may be right. So far I have been chicken to do so, since I do not have the personal expertise, but I will probably go listen to at least a few systems that proclaim to be great in good settings and if they blow me away look for new speakers, if they dont then I will consider crossover upgrade. But I have heard that sometimes the upgrades dont work and they ruin the speakers - any truth to that?

RCprince
Thank you for your helpful reply. Yes, the SDA's phase cancel the cross talk by sending a signal to block right speaker sound from coming to the left ear and vis versa, with the intention of creating a more realistic rendition of true stereo, allowing for the sound stage to be more expansive in both depth and width.
The Krells reportedly are designed with close to back wall placement in mind. But I have had that concern, since I do not have a dedicated room and cannot put speakers a third out into the room.

Lak, Thanks. A wise way to look at things. May I ask what speaker was an improvemnet for you, so I can get an idea of type of speakers that helped and what improved? The tweeter replace took care of alot of the problems in the highs, adding sweetness and detail.

Thanks Lak. Loved your naughty comment, Jaybo. RCPrince thanls for the tip re crossovers.

I am being seduced! Since I haven't heard any of the products except my own, I have been going on the glowing reports of stupendous sound in the reviews and adds. Just for fun I pulled the original Polk reviews from decades ago - same language "Audio Video Grand Prix Winner", "Mind boggling powers of sonic persuasion, spectacular, astounding, no compromise" - High Fidelity Mag, etc. even the photos of the big black speakers look cool under soft red light from the side.
I told me wife - "These mags create lust". She looked up knowingly from her New Homes magazine - I am in trouble.
I guess we all like to be seduced, at least until morning.

Well, I finally went to Vegas and heard the Sophia's with quality Marantz gear, and the Krell Resolution2's with Krell gear, both in quality listening rooms.
Here are my own impressions. Both are excellent.With amazingly clear detail and fast attack on the Sophia and they also sounded accurate but thin in the base to my ears - overall a bit dry. The Krells were very engaging but not as accurate. Summary - I know the rooms and equipment are different but my home system with the Polks sounds better in many ways with orchestral and rock, and the perhaps the Sophia's with simpler music. Overall I think that the Polks are more satisfying - just wish that I could shrink their size:) Given that I can not at this time justify speakers such as the Wilson Maxx 2, I will keep the Polks. So I will be going ahead with crossover upgrades, and ic and speaker wire and isolation products and see where I end up.
Joe

Will do thanks

Thanks Aktchi, sage advice. I talked to Polk Audio today. They were very helpful. What he said was that if I was 95% satisfied with my Polks, then doing crossovers and new cables etc might bring me close to 100%, but if I was 70% satisfied, then another speaker might be a better place to put money. I'm probably 90% satisfied with the sound but do not like thier size and dated "big door" shape in my room.
So today been exploring Van Sneikert(sp)VR4SR and Gen III options etc. I will let you know how the search progresses.

Chadnliz - thanks for your comment. I looked at Legacy - gorgeous but at 55" too tall for me in front of window placement. I am looking for 45 inches or under. Talked to VAN's son. He states that he has his Van jrs at 12" from back wall and they do fine. And that the newer Vans are designed with close to front wall pacemnet in mind. Do you have experience that contradicts this?
Jaybo. Thanks - I will look at the Hales.

Thanks for the cogent responses. It looks like I may get to audition a pair of jrs this week and if possible will play with to the wall distance and see what happens.