Hi All,
More of an observation than anything else, but I recently recalibrating my subwoofer using Digital Video Essentials. This disk has a 75db output level. So as usual I set the front left speaker to output 75db (77 on RSP-1098) with the speaker level set to 0db. I then cut over to the sub test signal from the DVD and the SPL metre was reading 85db from the sub(At this volume level the walls where starting to shake!). As you could image, the sub was way too loud.
The interesting thing was, I then repeated the calibration, but this time set the RSP-1098's volume to a level where I usually watch movies at (63). This lead to a SPL reading of 70 for the front left speaker and the sub also at 70db. Things sounded good, with deep bass that blended well with the speakers. I didn't touch any of the level setting when I rechecked the calibration at vol 63.
So it seems that bass response is not linear as volume increases (at least in relation to the other speakers). This then begs the question why calibrate at 75db (which is way too loud, in my case at least) and not calibrate a comfortable listening volume? If I was to calibrate both speakers and subwoofer at 75db, bass would be very light at the normal 63 listening level.
Just some random thoughts....
cheers,
Stephen
My Home Theatre
More of an observation than anything else, but I recently recalibrating my subwoofer using Digital Video Essentials. This disk has a 75db output level. So as usual I set the front left speaker to output 75db (77 on RSP-1098) with the speaker level set to 0db. I then cut over to the sub test signal from the DVD and the SPL metre was reading 85db from the sub(At this volume level the walls where starting to shake!). As you could image, the sub was way too loud.
The interesting thing was, I then repeated the calibration, but this time set the RSP-1098's volume to a level where I usually watch movies at (63). This lead to a SPL reading of 70 for the front left speaker and the sub also at 70db. Things sounded good, with deep bass that blended well with the speakers. I didn't touch any of the level setting when I rechecked the calibration at vol 63.
So it seems that bass response is not linear as volume increases (at least in relation to the other speakers). This then begs the question why calibrate at 75db (which is way too loud, in my case at least) and not calibrate a comfortable listening volume? If I was to calibrate both speakers and subwoofer at 75db, bass would be very light at the normal 63 listening level.
Just some random thoughts....
cheers,
Stephen
My Home Theatre
Comment