Originally Posted by Brad Sutliff
I have the onkyo txsr607. And the highest I listen at is 45
Good, same Onkyo family as mine. Let's see if we can farnarcle a number or two...
Your 607's absolute volume runs from 1 -> 79 (78 range).
My 1007's absolute volume runs from 0.5 -> 99.5 (99 range). The relative volume runs from -81.5dB -> +18dB. The absolute/relative equivalence at reference is: 82 <--> 0dB.
Just going on simplistic ratios: 82/99 * 78 = 64.6, say 65. IOW, by this method 65
master volume on your 607 could
be equivalent to 0dB relative to reference level. This would make your maximum listening level equivalent to -20dBMV relative, or theoretical
peaks from a single satellite channel of 85dBSPL and 95dBSPL from the LFE channel at your listening position. I would subjectively consider that to be reasonably loud within the confines of a smallish untreated room with multiple speakers operating.
Another simplistic way of doing it would be to knock the +18dB (1007 max.) off 78 (607 range) and arrive at 60. IOW, 60
MV on the 607 is equivalent to 0dB relative to reference level. This would make your maximum listening level equivalent to -15dBMV relative and the theoretical channel peaks 5dBSPL higher than the first method, or 90dBSPL at your listening position for the satellite channels. This would subjectively be a good measure louder than above.
The second method is rough and probably less likely to be correct, but it will give a more conservative answer for the purposes of working out approximate power requirements.
Trust you can follow the logic in the posts I linked above to continue on. If not, sing out and I'll take it further.
Hope that helps.