This is why I don't post very much more here at THG. You are telling me a 3" one-way papercone playing 120-20KHz is going to be more sensitive with less distortion than 6.5" composite cones playing 80-1.8KHz? Max SPL is listed at 115db? That doesn't mean anything. A 2" Bose cone can hit 115db. Those numbers mean nothing without knowing the loudspeaker characterstics at that level or the THD. You can turn a 10W 0.1% THD amplifier and re-rate it to a 100W amplifier, without mentioning it runs at at 100% THD.
Fine fine. I'll stop posting here. You guys are funnier than a bunch of sports fans.
Very well!! I submit to your superior knowledge

but I really have yet to hear those bookshelves... and to answer, yeah, I haven't heard any distortion from these yet that hasn't been created from between the audio source and the logitech control center (think crappy analogue connections with equalisers set wrong on the machines) Perhaps I need to try harder, but it just hasn't happened yet. Judging by your response I'd say it's not impossible though
😉
Anyway on to more Z5500 flogging:
The sub produces punchy bass, no questions, it delivers it hard when it's neccessary. Rolls of thunder and peals of lightening played over a Dolby Digital soundtrack via digital connection sound absolutely fantastic, and I think it's here that the benefits of closer-to-amp digital audio stream decoder becomes an advantage. Because you're not using analogue-out from the sound card but rather the inbuilt DACs and signal processing components married to the amplifier you lose far less clarity and quality. I've tried various configurations of analogue sound against the digital hookup (different source volume levels etc) and found digital to be the best. Logitech Z5500's adjust frequency response settings in real time for "best sound reproduction" as well, something I believe is handled within this control center along with everything else.
It's all for 200ish as well... THX certified of course, but anyone can read from the website.
Also might add Halcyon's idea is a good one, as long as you can return speaker systems there's no harm in spending some time trying various different one's out. My cousin did the very same thing, he went through 3 or 4 solutions before ending up with Logitech Z5300's.
I noticed Astrallite hasn't been posting much and that's too bad, he's quite knowledgable and his forum demeanor is awesome. We're all trying to learn. I hope. The fact that I like my tiny crappy Bose speakers just shows how far I still have to go. :roll: