I've had my SP-FS52 speakers for a couple of months now and I think they're great!
They didn't sound amazing to me when I'd just gotten them (though they sounded fantastic when I demoed them before taking delivery), but that could have been because my music was primarily on 128-192kbps mp3's. Or because the acoustics in my living room are terrible. The bass was boomy, and I sometimes thought that the speakers weren't playing the low frequency sounds. The upper range also sounded a bit harsh.
Sometimes the speakers sounded really good, and sometimes not.
I got some lossless music and that sounded a lot better, but it wasn't anything like the experience I had in the demo room.
I'd connected the speakers to my Pioneer VSX-523 AVR, and wondered if that may have been the weak link. But then, the same set-up sounded great while taking a demo.
I hadn't used the speakers or AVR to watch movies, but when I finally did watch some I was blown away. These speakers may not have sounded very musical in the beginning, but they made movies come alive.
I usually watch movies in my small office/computer/gaming room on my computer, playing back audio on my 5.1 creative speakers.
While my 2 channel set-up in the living room couldn't replicate the 5.1 set-up for positional audio, it did a damn good job of throwing sound. I did get a surround sound experience, with roars and gun-shots coming at me from my sides.
And the clarity of the dialogue was exceptional. The bass was fantastic, and I kept playing back scenes with cars racing, or helicopters flying in them.
Movies tend to get loud very suddenly and then soft again, and I found myself listening to the speakers at louder volumes than I had so far. (Though, at no point did I ever cross the 50% mark)
I watched a few movies, and then got back to listening to music, and suddenly the speakers sounded a lot better!
I guess the speakers needed to be broken in. And my playing music at about 30% amplification just wasn't giving them what they needed. The gun-shots, and explosions did though, and the speakers now sound more open, and less harsh.
I've got constraints as to where I can place the speakers in my room, and usually have them about 8 inches from the wall.
Today while cleaning out my computer, I came across a booklet I'd downloaded about speaker placement, and after perusing it, decided it was time to move my speakers a bit forward and see how that affected the sound.
I moved them so that they were about 3 feet away from the back wall, and played some music. What a revelation that was! The SP-FS52's now sounded a lot better. The bass didn't boom, it was much more controlled. And the soundstage improved dramatically.
I moved the sofa ( the one facing the speakers) 6 inches away from the wall, and was rewarded by yet another improvement in sound quality.
Before I moved the speakers forward, I could notice the soundstage in some tracks, but not in most. After moving them forward, I feel that sound isn't coming from the speakers, but from the entire front listening area, and it keeps moving depending on which instruments being played.
It isn't as good as some of the experiences I had while demoing speakers, where once, I could almost picture an entire orchestra playing in front of me, but it's not bad.
My rooms got lots of reflective surfaces, hardly any furniture, is open on one side, and has French windows on the other. I need to place a few plants, and some other audio-diffusers/absorbers to get audio to sound better.
However, the little things I've done so far, moving the speakers and sofa forward, adding a thick lining to my curtains, and putting a carpet in have shown me what my speakers, and well, the AVR too, the Pioneer SP-FS-52s, and the 523-k are capable of.
I don't think I've quite broken in my speakers yet, they seem to sound better every day.
This is the first set of decent AV equipment that I've owned, so I can't make comparisions, but to my ears they sound pretty f******* good.
I listen to western classical, rock, hard-rock, pop, trance, country and folk, and it all rocks!