I officially returned the Sprout 100 with no problem.
Yay! And there was much rejoicing.
The question to whether you need an amp may well still be valid. If you play with the SPL Calculator, and/or feel that something isn't right with the Yamaha driving your speakers to satisfaction, yet are satisfied with the Yamaha in all other aspects, then YES: Look for a quality Amp to power your speakers. However, the caveat is that speakers don't magically bloom into something better than their design allows, simply because you give them more power or current.
Though I am not a fan of Polk, the RTiA lineup did get some decent praise, but shopping around a bit shows that better speakers can be had. Any entry level speakers can easily be improved upon. To what extent one wishes to chase those improvements becomes a function of cost and experience.
As has been discussed so many times: Sound Quality is really a function of the Speakers, first, then how the Speakers and your Room interact.
This is by no means a sales pitch.
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Just want to share back the common experience so many here have shared with me. Proper planning and educating yourself a little about the gear goes so much further than most people seem to give credit.
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