Register | Lost password?
Advanced Search
Forum Scope


Forum Options

Minimum search word length is 3 characters - maximum search word length is 84 characters

Please confirm you want to mark all posts read

Mark all topics read

sp_MobileMenu Actions
Not logged in

New/Updated Topics

Select Forum

Terrible boost at 150Hz
Posts: 2
September 15, 2018 - 1:52 am


Hi everyone,

I am fairly new to acoustics. I understand how sound propagates but I don't quite get how I should treat my room issue.

I get an ugly boost at around 150Hz, which kills any song including a heavy D3 note. I have started to put on bass traps on the back of my sound system, but the problem remains.

The room size is 260cm * 350cm, ceiling height 230cm. I should mention the ceiling is not totally flat. It's curved on the left about 30% of the ceiling surface. Also, the ceiling surface is wood.

I have a sliding door on my left that is covered by curtains. A window on my back also covered by curtains. And sliding panels (my room is japanese tatami style room) on my right that are not covered.

I am not sure what to do next. Keep covering corners with bass traps? Or is this 150hz boost potentially caused by anything else? I read on another thread ceiling height could be the problem.

Thanks for all the advises left on this forum anyway!


Posts: 389
September 15, 2018 - 8:49 am

P, A 150 boost comes from a 37 Hz. issue with your room. Fill out the data in this link so we can take a look at your entire room. The corners of your room are not your problem. Your issue is one of the dimensions and unwanted pressure.

Posts: 2
September 18, 2018 - 7:19 am


Thanks for your quick reply Dennis.

I did fill this form before I posted here. I will wait for your reply then.

Forum Timezone:
Most Users Ever Online: 31
Currently Online:
Guest(s) 5
Currently Browsing this Page:
1 Guest(s)

Devices in use: Desktop (4), Phone (1)

Forum Stats:
Groups: 4
Forums: 10
Topics: 377
Posts: 1025
Member Stats:
Guest Posters: 23
Members: 14839
Moderators: 0
Admins: 2