So whats the first choice?
Are the Boston Acoustics considered a better speaker. Those sale prices sure do look good.
Well, my first choice would be beyond your speaker budget of $1,500.
We all know that the final test is the auditioning in YOUR OWN home. In general we can agree on the fact that most respectable brands will do a good job. Since Aperion gives you free shipping both ways for auditioning their speakers, why not take it?
Do you have a Home Theater store near you? Like Magnolia in Best Buy stores? Ultimate Electronics?
If my brother asked me, "If you could spend $1,800 on speakers and not a dime more, what would you buy?"
I would say, "Def Tech BP7006 x 2 & SM350 x 3 = $1,800".
The BP7006 has a built-in 300-watts RMS 8" subwoofer (freq response 29-20,000 Hz +/- 3dB). I can get this at my local HT store for $600 each, including tax. In comparison, the Aperion has a built-in 150-watts RMS 8" subwoofer (freq response 30-20,000 Hz +/- 3dB), also for $600.
The Def Tech SM350 has a built-in PASSIVE 8" subwoofer. I don't know the low freq response +/- 3dB, but my educated guess is that it is between 50-60Hz, since the SM450 is 47 Hz +/- 3dB. In comparison, the Aperion 533-VAC center speaker is 80 Hz +/- 3dB.
That's what I would do if I had exactly $1,800 to spend on speakers. That would be my first choice.
I believe that tower speakers with built-in subwoofers are the way to go. I think most expensive speakers are like this. For example, the Linn Komri is $20,000 per speaker. It also has a tower speaker with built-in powered subwoofer. The Bang & Olufsen BeoLab 5 is a $8,000 per speaker and it has built-in amplifiers for each drivers, including a powered subwoofer. I think most super expensive speakers are tower speakers with built-in subwoofers (or more).
Is 2-channel music also important to you?