I've read quite a bit of the material in the sticky and am at the point of playing with REW to familiarize myself with it. I'm primarily interested in setting my system up for music if it matters.
1.) I'm wondering how important the SPL Calibration is. I don't have an SPL meter, I'm using an ECM8000 for measurements. I've set the volume of the system at normal listening levels and adjust the target curve up or down to it overlays well with the measured response. Any disadvantage to doing this?
2.) I've read the bits about house curves and the hard knee curve, but I haven't seen how those levels relate to the level of the mains or what the combined response of the mains+sub should look like. Should I set the sub response to match the house curve and then just use the gain on the sub-amp until it sounds right?
3.) I am using an H/K AVR-235 to handle signal processing. AFAIK the slopes should be 4th order low pass and 2nd order high pass so it combines with the natural roll off of the mains to make a 4th order acoustic roll off. I've measured the mains by them selves and the sub by itself and playing with the cross over settings at the left side of the REW screen my response matches a 12db/octave roll off pretty well at 120HZ which is what I have the receiver set at. Could there be something I'm missing or doing wrong? since I expected to see 24db/octave for each.
Thanks for any help,
Ryan
1.) I'm wondering how important the SPL Calibration is. I don't have an SPL meter, I'm using an ECM8000 for measurements. I've set the volume of the system at normal listening levels and adjust the target curve up or down to it overlays well with the measured response. Any disadvantage to doing this?
2.) I've read the bits about house curves and the hard knee curve, but I haven't seen how those levels relate to the level of the mains or what the combined response of the mains+sub should look like. Should I set the sub response to match the house curve and then just use the gain on the sub-amp until it sounds right?
3.) I am using an H/K AVR-235 to handle signal processing. AFAIK the slopes should be 4th order low pass and 2nd order high pass so it combines with the natural roll off of the mains to make a 4th order acoustic roll off. I've measured the mains by them selves and the sub by itself and playing with the cross over settings at the left side of the REW screen my response matches a 12db/octave roll off pretty well at 120HZ which is what I have the receiver set at. Could there be something I'm missing or doing wrong? since I expected to see 24db/octave for each.
Thanks for any help,
Ryan