Hello!
Using this tool I have identified the room modes, and listening subjectively using a tone generator I sort of confirm that the mode at almost 82 Hz is the most offending one (it is the loudest and calls for most attention when sweeping, I can hear a bit at around 41 Hz but my speakers have little output to really excite there).
I know this is all relative since I have not actually measured the freq. response in my room. I intend to buy an Umik-1 from cross spectrum (I'm not sure the additional calibration is really that useful but if I understand correctly it allows for more positioning versatility) but they are currently out of stock. When I get it, I will hopefully make lots of measurements as I have lots of probably stupid ideas I'd like to test!!
Anyway what I have been wondering is how I would set up the crossover (I'm hopefully getting 2 small subs and an integrated with high pass filters soon) in order to mitigate this room mode, as they are usually set at about 80 Hz. So what I think is that maybe, if after positioning the subs for most uniform performance this mode is still an issue, I could set the high pass and low pass at slightly different frequencies (80Hz for the low pass and 84Hz for the high pass for example) in order to make a slight dip in response at the middle frequency.
Can anyone please advise if that makes any sense at all? While I have read a lot recently and this page has been great education, I still know very little if anything at all!
As a side note, I think the integrated I would buy can't adjust the high pass slope.
Thanks!
Using this tool I have identified the room modes, and listening subjectively using a tone generator I sort of confirm that the mode at almost 82 Hz is the most offending one (it is the loudest and calls for most attention when sweeping, I can hear a bit at around 41 Hz but my speakers have little output to really excite there).
I know this is all relative since I have not actually measured the freq. response in my room. I intend to buy an Umik-1 from cross spectrum (I'm not sure the additional calibration is really that useful but if I understand correctly it allows for more positioning versatility) but they are currently out of stock. When I get it, I will hopefully make lots of measurements as I have lots of probably stupid ideas I'd like to test!!
Anyway what I have been wondering is how I would set up the crossover (I'm hopefully getting 2 small subs and an integrated with high pass filters soon) in order to mitigate this room mode, as they are usually set at about 80 Hz. So what I think is that maybe, if after positioning the subs for most uniform performance this mode is still an issue, I could set the high pass and low pass at slightly different frequencies (80Hz for the low pass and 84Hz for the high pass for example) in order to make a slight dip in response at the middle frequency.
Can anyone please advise if that makes any sense at all? While I have read a lot recently and this page has been great education, I still know very little if anything at all!
As a side note, I think the integrated I would buy can't adjust the high pass slope.
Thanks!
Last edited: