Moved Rooms- No Bass - Its Gone! Help =/

[goat69]

(I originally posted this in the wrong forum i guess, so I am posting here. I apologize.)


Hello all,

Recently I have moved rooms in my house and everything was fine until I fired up the system... i have NO Bass!

I am using Tannoy PBM 8 II Monitors (yes those ancient Tannoys I love them) and Crest Audio 4 Amp. I have used this setup for years , in different rooms and locations, and never had this "no bass" problem (it usually was too much bass)

Anyway, when I sit at my mixing desk (Argosy 15 k to give you an idea of where the monitors are) I here little to no bass in anything I play. Gear, mp3s, cds , etc.

If i stand up and move to the left or right of the desk, then I hear some bass in whatever I am playing. But as it stands now, I am hearing absolutly nothing.

Recently I have foam'd my walls (Sonex) for some minor treatment but obviously this wont help me "get" my bass back.

Where is my bass? Is it canceling out somehow? Maybe all my other rooms I have used this setup in have been inaccurate and this room is Accurate and I need to add a small Subwoofer?

Any help would be greatly appreciated. I am totally stuck and can not work. Its even depressing just trying to listen to music in here.

Thanks all,
goat69

 

[DigitalDon]

Sounds (sorry) like you have room mode problems with cancellation of your bass frequencies. This is due to room dimensions. Measure your room and post the dimensions here. We'll need length, width and ceiling height.

Also, are those monitors rear ported? If so, speaker placement (in relation to the wall behind) can seriously affect your bass. You could have phase (cancellation) problems at your mix position due to reflections from the wall behind your speakers.

DD

 

[DDev]

A word of warning: try not to cross-post in multiple forums. Lots of the guys around here don't like that.

That being said, if you check your other post in the mixing forum you'll find a post by sonusman that suggests that you may have one of your speakers wired backwards, creating a phasing problem between the 2 speakers which will cause your bass to disappear.

Darryl.....

 

[Ethan Winer]

Goat,

I agree with Sonusman that you should check the polarity of your speakers first. But loss of bass at the mix position is extremely common - it happens in every room to some degree - and it's always caused by reflections and cancellations. Have a look at my Acoustics FAQ, 10th article in the list here:

www.ethanwiner.com/articles.html

It explains all of the issues in detail.

--Ethan