Subs and room nodes


Hi everyone. I have heard so much about how multiple subs cancel out room nodes and I am a believer. I would like to learn more about how this happens. Let’s say your sub crossover is set at 80hz but the room node is at a higher frequency. If the sub doesn’t come in until 80 hz and lower how is it able to cancel the node? This is in regards to my new 2 channel dedicated room that I will be adding to my systems page soon. Thanks. 
 

Ron

ronboco

Showing 8 responses by ronboco

Hi Erik 

Thanks for the response. I think I’m in a tricky situation as my room was designed by an acoustician. There is no drywall inside the room. All the walls have Rockwool between the studs with 1/4 inch pegboard on top of that. In addition to that the walls opposite the speakers have 2 inch rigid fiberglass on top of the pegboard with fabric covering everything. There is plenty of bass between the speakers next to the floor to ceiling bass trap in the corner. Of course it’s the listening position where it’s gone. I believe I will have to measure the room at some point to ascertain a more accurate picture of the room 

@achipo 

Thanks for the tips. I’ve heard the crawl works well. I have never used REW but I do have a U Mic. I’ll check out those links as well. 
 

Ron 

Hi spenav 

Thank you! 

As of right now I have no subs in the listening room. My dealer is coming next Friday to do a master set and if subs are needed (I’m assuming right now they will be needed) I will rob 2 REL S510s from our HT upstairs to try out. 

I am hoping that they aren’t needed so I can get the full potential out of my Rockport Avior ii speakers 

Thank you everyone for the responses. I’ve learned so much here in the time I’ve been on agon. It’s a really great forum. 
 

Happy listening! 
 

Ron 

@paradisecom 

Thank you. I have been enjoying the Aviors tremendously. The Boulder 866 paired with them seems to be an amazing combination. One thing I didn’t realize was how much the sound would change as the speakers have broken in. I actually thought the room was a dud but it was the speakers not being broken in. I think you are right that just some small adjustments will be needed.