Real world performance is based on measurements (in room frequency response as well as waterfall graph). The A/C behind my right speaker is the least of my worries. The desk in front of the speaker affects my frequency response much more (around 110Hz) than anything else, but my desk is a necessity.
DAC: Assemblage DAC3.1 Platinum Edition or Onkyo NR5008
Preamp: Headamp GS1
Speakers: 2 Adam S3A and 3 Adam A7
Sub: Velodyne DLS5000
Room is semi-treated
Remember to factor in the cost of room treatment as hopefully you can get your frequency response to within +/- 10db and reduce ringing as oppose to +/-30db (very typical) with no treatment at all.
It's not like he cares. He'll say that he wants to base his decision on objective measurements (inaccurate in this case) but he never responded to my arguments on here or Head-fi.
It doesn't matter, if the tests are to be valid and accurate, that's what you want to strive for. If they didn't care for accuracy of the comparison, why put them out in the first place?
First of all, how was the frequency response of the speakers tested?
This is important as the room that the speakers were tested at have a huge influence on the frequency response unless it is an anechoic chamber. If speakers aren't tested at an anechoic chamber, the placement of the speakers...
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