Dirac bass control not fixing peaks and nulls

[hardcore_gamer99]

I also tried to bump up frequency range 20 to 36hz by 6db and decreased peak at 42hz by 6db then saved filter but still REW shows same curve exact though i can hear now more SPL in low end. But rew showing up same curve. with dip and peak

 

[Trell]

Bumping up bass frequencies dips is an iffy proposition and very often does not bring anything to the table. For my HT (two subs) I did try to bump up the sides of the nulls to make them more narrow but kindof meh for me in my setup in my room.

Like you I did measure, but also listen.

 

[j_garcia]

That is a pretty big dip. Seems you have a room or placement issue. I'd start with adjusting the location of the speakers.

Cutting a peak is usually not so bad, but I agree, increasing in an attempt to smooth a big dip usually does not work. I had a crazy null like that when I had a square room. I ended up moving the listening position to mitigate it, but you could walk around the room and easily hear the spots where the nulls were.

 

[Verdinut]

Several years ago, I had built an 8 cf enclosure for a 15 inch subwoofer. It was placed in the center of the living room and used as a coffee table as well. I still remember its smooth low frequency response. Of course, it was well designed but this smooth response was also not affected by room gain.

IMO, the center area of a room location is the best spot when you can do it, especially for an audio system using only one subwoofer. It's worth a try!

 

[hardcore_gamer99]

Bumping up bass frequencies dips is an iffy proposition and very often does not bring anything to the table. For my HT (two subs) I did try to bump up the sides of the nulls to make them more narrow but kindof meh for me in my setup in my room.

Like you I did measure, but also listen.

i can hear more spl with ears but rew shows exact same curve

 

[hardcore_gamer99]

That is a pretty big dip. Seems you have a room or placement issue. I'd start with adjusting the location of the speakers.

Cutting a peak is usually not so bad, but I agree, increasing in an attempt to smooth a big dip usually does not work. I had a crazy null like that when I had a square room. I ended up moving the listening position to mitigate it, but you could walk around the room and easily hear the spots where the nulls were.

i dont have space so can put in front only but i am worried about 23 to 36hz area a bit of dip i wish could smoothen it

 

[hardcore_gamer99]

Several years ago, I had built an 8 cf enclosure for a 15 inch subwoofer. It was placed in the center of the living room and used as a coffee table as well. I still remember its smooth low frequency response. Of course, it was well designed but this smooth response was also not affected by room gain.

IMO, the center area of a room location is the best spot when you can do it, especially for an audio system using only one subwoofer. It's worth a try!

i have square room

 

[j_garcia]

Square room is tough. You might need some treatments, basic bass traps for the corners if possible.

 

[Trell]

Square room is tough. You might need some treatments, basic bass traps for the corners if possible.

Moving the speakers and listening position can help as well.

 

[hardcore_gamer99]

Moving the speakers and listening position can help as well.

nothing is helping. i tried many mlps and subwoofer as well. guess have room modes

 

[Trell]

nothing is helping. i tried many mlps and subwoofer as well. guess have room modes

I've a small room too and it is a challenge with many compromises.

 

[Verdinut]

i have square room

With that square room, you would probably still avoid some of the room gain which boosts the low frequencies. Acoustically, its the worst horizontal room dimension. Unfortunately, you would be better off with good headphones.