Originally Posted by GIEGAR
What's with the listening distance crusade? Blokes are offering advice in good faith to those asking for help - and you just want to get pernickety with their responses and send the thread on a tangent?
They are asking for a useless piece of information (with regards to speaker selection), basing their recommendation on that useless peice of information, and wrongly training people new to the hobby that room size is an important factor in determining speaker choice.
Why does anyone here correct any wrong information? Same reason.
Listening distance is important, but that doesn't mean room size isn't a relevant variable for speaker selection. It can give some clue to what physical size of speaker the OP may be able to accomodate in the room and it's a pretty fair indicator of the likely range of listening distances. It's also relevent for speaker and/or amp selection because the level trim calibration, whether using a continuous pink noise stimulus or auto set-up routines (eg. Audyssey log chirp), the measurement mic's reading is integrating the direct sound from the speakers and the lingering reflected energy in the room. In a smaller typical domestic room, the contribution of reflected energy to the overall SPL reading will be greater, resulting in somewhat lower speaker level trim and reduced power requirements. This is why the fellas ask how big the room is. It also gives them a frame of reference to their own room size when they're giving advice.
I'm incredulous in regards to that claim. What is the db increase for a speaker in a 10x12 room compared to the same speaker in a 16x24 room? How many db of "lingering reflected energy" can I expect? I've never noticed it on any of my speaker calibrating sweeps, which I generally do by hand on my active set.
Also, and reflected noise over 1ms is heard as reflection, and not as part of the same note.
It would make *much* more sense to be asking distance from the wall / corner (where you *can* get loading) than room dimensions.