Gearslutz.com - View Single Post - room problem : I get more deep bass when inverting phase of one speaker

entoine · 11th December 2007

I noticed that when I do a phase inversion on the signal of one of my speakers I got a lot more bass frequencies (wich is the inverse of what I expected

). globaly it is awfull but in the deep basses, it's seems way better... more open

so are my questions : is this due to room modes wich cancels bass frequencies? Is this due to my monitors position (I tried different placement with no convicing results), or because of the room itself ?
If I build bass traps, can I have more bass by "fixing"an eventual room mode??

(if this is the case (need basstrap), suggestion how to build on myself are welcome )

regarding room modes, I noticed that I have more bass in the whole room, not only at listening position.... weird, maybe more speaker position so...!?

by the way, my monitors are ADAM P33A wich are on K&M Stands.

do you have any suggestion or experience with such problems?

(sorry for my aproximative english)

11th December 2007	#1
entoine Gear interested Joined: Oct 2007 Posts: 3 Thread Starter	room problem : I get more deep bass when inverting phase of one speaker I noticed that when I do a phase inversion on the signal of one of my speakers I got a lot more bass frequencies (wich is the inverse of what I expected ). globaly it is awfull but in the deep basses, it's seems way better... more open so are my questions : is this due to room modes wich cancels bass frequencies? Is this due to my monitors position (I tried different placement with no convicing results), or because of the room itself ? If I build bass traps, can I have more bass by "fixing"an eventual room mode?? (if this is the case (need basstrap), suggestion how to build on myself are welcome ) regarding room modes, I noticed that I have more bass in the whole room, not only at listening position.... weird, maybe more speaker position so...!? by the way, my monitors are ADAM P33A wich are on K&M Stands. do you have any suggestion or experience with such problems? (sorry for my aproximative english)