Any chance na magkaroon ka nang LSi 9 for demo? Mas affordable ang LSi9 kesa sa A9 and i heard kay sir stagea maganda daw talaga ang LSi9 for music..
Magkaiba sila ng tunog bro, worlds apart. They serve different markets kasi (though one is not necessarily better than the other).
The LSi line has a more relaxed and laid-back presentation, and is typically suitable for jazz and vocals (and other similar materials). This is a speaker line that's meant to sound "pleasant." Within this line, I prefer the LSi9's reproduction over the LSi7, because of a slight resonance in the lower mids for the latter (making voices a bit weighter and more nasal). Both bookshelves have a punchy low end (similar to recent B&Ws) however, which may or may not appeal to people. The LSi15 and the LSi25 are a little more behaved in that department.
Below is the frequency response plot for the LSi25. Watch the purple line dip in the mids and highs. This causes the laid-back presentation and the perception of warmth. The strong lows will certainly get emphasized inside a listening room. On the other hand, the very smooth line ensures that there is no sound sticking out, ensuring a more seamless presentation. These speakers need space around them (to prevent bass bloat), while the ring radiator tweeters in these speakers sound best when fired directly to the listening position.
The RTi line has a flatter measured response (no gundry dip and downward response slope), with far more high frequency energy. This makes it appear more forward, brighter and livelier overall compared to the LSi line. The sound is closer to midlevel Infinity and JBL products than it is to the LSi line. The RTi A9 is my favorite in this lineup, because it's very close to neutral. I prefer this characteristic for movies, orchestra music, rock, electronica, etc.
Notice the very different line for the RTi A9 (purple line). The lows roll-off, which negates room gain in a typical environment. There is some emphasis in some parts of the highs, on the other hand. This is a speaker that's meant to sound "correct" when slightly off-axis. I would assume that it's meant to sit close to the backwall (to reinforce the lows), and fire straight forward (to manage the upper octaves).
