Moved Rooms - No Bass! Its Gone! help =(

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goat69

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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
 
Check out the studio building section of this forum. Do a search there and you will find much to read and learn.

From what I gather you have to find the nodes in the room and deal with them. Bass traps are a good start but I believe your monitor placement can give some quick results. What shape is the room and where is the desk in it?

Don't answer here though, go to studio building and display.
 
Maybe the bass was just exaggerated in your other rooms, so perhaps it's a good thing. :D

Like Jake says, though, you might want to pay a visit to the Studio Building section.
 
Check the phase of the wiring of your monitors. I am betting that one side is wired out of phase from the other.

Good luck.

Ed
 
Ed,

You beat me to the punch. I was reading the thread and thinking, "he's got one speaker wired backwards".
 
sonusman said:
Check the phase of the wiring of your monitors. I am betting that one side is wired out of phase from the other.

Good luck.

Ed
Click to expand...
AHA! The simplest answer is probably the right one.

I did that once and it tripped me out for like an hour..."what the hell happened to my sound?!?!"
 
well, if you moved into a smaller room, and/or you happen to be in the middle of a bad area in the room, it's quite possible the reflections in the room are simply causing the bass to cancel itself out.

change positions in the room, move to a different room, or buy/build a shitload of bass traps.

that is, AFTER you've made sure that your speakers aren't just out of polarity :)
 
i'd say its the speakers as well. i've did the same thing about a year ago.

if its not the speakers, how big (or small) is the new room? if the room is square and the monitors are placed in a particular space i would imagine you could get phase cancellation from all directions. basicly your head is sitting in the eye of the hurricane. there is bass all around you, but not where you are sitting. bass waves are long. if you've got the crest coming from the speakers to your head, and the trough coming from the back wall to your head, you reduced bass response.

if the 2nd thing is the problem and not the first, you are very much beyond any help i can offer to fix the problem, but i bet it is the first thing.
 
First off check your wiring as suggested above.

If your new room is smaller, the long bass wavelengths may not be forming completely and you may be getting cancellation.

You can work out the lowest frequency (standing wave) you room will support with the formula
S = 1130/2L

1130 is the speed of sound in ft/sec, L is the length of the room.
So if your room is 10 foot long, the lowest standing wave is 56.5 Hz, plus its multiples.

You can't do much about changing you rooms dimensions but one trick you can use is to remove any furniture or bookshelves etc out of the corners of the room. The empty corners may help stop some cancellation
 
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