In our listening comparisons, the MC240 tube amplifier was used to run the Bostons; the MC2505 was used to run the 705s. The MC2505 is a robustly designed rated 50 wpc however it has been bench tested at 68 wpc while still remaining under distortion spec of 0.5%. It has been previously used with both the RTiA7s and RTiA9 without any ill effects - except more power would be needed if higher volume levels are desired. I therefore respectfully disagree the amplifier played any role to the detriment of the performance of the LSiM705s. The amount of power that is needed for the levels at which I typically listen is nowhere near the maximum capabilities of the MC2505. The SPL of the two 88 dB 705 speakers @ 25 wpc is 105 dB (at one meter), which even at the listening position of ~ 13 feet is still far louder than I could ever tolerate for any length of time which the MC2505 managed, with aplomb. A speaker can only respond to a given input (over a given load) and the speaker has no way of knowing (nor responding any differently) whether 25 watts are being supplied by a 50 watt amplifier or a 500 watt amplifier. This is one of the most pervasive misconceptions in high fidelity. And it can certainly play no role in the tonal quality I observed when run well within its operational limits. Perhaps the LSiM705 is intended for those who customarily listen at very loud SPLs, I cannot say. Since I primarily listen to classical at more natural volume levels averaging several watts with peaks rarely exceeding 25 - 30 watts per channel in this system, a speaker that must be played very loudly to perform well is of very little use to me. Interestingly, I've found the Polk RTiA7 and RTiA9 to perform admirably well at modest listening levels of under a watt or so. In the other system, I'll occasionally shut down the RTiA7 & RTiA9 and listen only to the bookshelf sized Snell J7 Series Vs. These were the final line of Snell products before the plug was pulled on this great name in loudspeakers. Even with the J7's diminutive size, the spacial imaging and evenness of response of these speakers is simply incredible. The soundstage, detail and precision are first rate, far more along the lines of some of the finest high-end speakers I've heard, and far beyond anything the LSiM705's are remotely capable of doing- at least to my ears. De gustibus not est disputandem. - In matters of taste, there are no disputes - or as we like to say, YMMV. Cheers.