This is a cross post from another thread (probably posted in wrong thread. I am not sure how to edit/remove it )
I measured power usage with a kill a watt meter on my Denon x4300H. 90 watt without music, up to about 125 watt at 75dBSPL at MLP (using a calibrated Umik-1 + REW SPL Meter). So about 35 watts into 2.0 out into 90dB efficient speakers at 14 feet. Playing with peaks to 80+ dBSPL. This is unexpected, because the hometheater SPL meter page indicates much less power needed for this SPL. What am I doing wrong? This post here seems to measure similar numbers at similar settings - https://audiosciencereview.com/foru...23-stereo-amplifier-review.45462/post-1621869
Of course, this also did not explain why the Denon's volume goes up from setting of 65 at this measuring level to 98. It cannot possibly produce even 10 dB more power. How do I make sense of this?
I measured power usage with a kill a watt meter on my Denon x4300H. 90 watt without music, up to about 125 watt at 75dBSPL at MLP (using a calibrated Umik-1 + REW SPL Meter). So about 35 watts into 2.0 out into 90dB efficient speakers at 14 feet. Playing with peaks to 80+ dBSPL. This is unexpected, because the hometheater SPL meter page indicates much less power needed for this SPL. What am I doing wrong? This post here seems to measure similar numbers at similar settings - https://audiosciencereview.com/foru...23-stereo-amplifier-review.45462/post-1621869
Of course, this also did not explain why the Denon's volume goes up from setting of 65 at this measuring level to 98. It cannot possibly produce even 10 dB more power. How do I make sense of this?