AVS Forum Addicted Member
Join Date: Nov 2006
Location: Colorado Springs, CO
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How can it be said max power is 47 watts on the SC-07? Seems to be a misunderstanding of how all channels driven measurement relates to max single channel power. The max power per channel is, at worst, the max power seen at a specified THD with two channels driven.
All channels driven is a tool giving you some idea of how large the power supply is IMO, but could also be telling you something about the receiver's design which limits power under a high, and not very real world load. I don't think it's fair to say a receiver's max power is the per channel power seen in the all channels driven test.
I really think it's long past time to do a careful comparison between a budget model and a mid priced model with some ability to detect clipping with a real movie, a normal size untreated room, and typical bookshelf speakers ( 88 dB or so.) Then we could tell new buyers how much SPL they could expect to get before distortion happens. I suspect it's at least 95 dB at a typical listening position with a 6 dB drop in SPL from speaker to listening position ( and very likely better.) That's not bad IMO. I guess it depends on how many listeners want near ref. level or ref. level SPL.
Any guidance would be better than what we have now in these forums, which seems to be a "more power!" reaction to all questions.
"But this one goes up to 11"
Last edited by MichaelJHuman; 06-24-2014 at 07:43 PM.