Kevin_Wadsworth
Agent
- Joined
- May 1, 2003
- Messages
- 39
Hey guys, I’m looking for a little help in making sure that my BFD is set up right. I’ve read the manual, the excellent snapbug web site, and several threads no this forum. I like to think that I’m a reasonably tech-savvy guy, but it seems like I might be missing something obvious.
After measuring my room response I found the usual dips and humps in frequency response. I downloaded one of the spreadsheet utilities for simulating the response after applying filters and put those into the BFD on channel 4 (I did check and make sure that all the filters on channel 4 are set to PA). I pressed the store button twice to save all my settings and everything seemed as it should be. However, when I re-tested the frequency response, nothing had changed - all the same peaks and dips were still there. I realize that the spreadsheet predections probably won’t be completely accurate, but it seems like putting all the filters in should at least change something.
When re-testing, the In/Out light and the Engine L and Engine R lights are all lit green. Other lights are all out. Any thoughts? Am I doing something completely wrong? I’ll probably try setting up another channel with a single filter with a 20-30 dB drop at 40 Hz just to see if I measure a change, but Ithought I’d post here for advice as well.
-Kevin
P.S. On another note – I’ve read how much subwoofer placement can affect your frequency response, but I was surprised by just how much. I had two 25 dB dips (70Hz and 80Hz) that were ameliorated simply by moving the sub 6 inches or so. Amazing.
After measuring my room response I found the usual dips and humps in frequency response. I downloaded one of the spreadsheet utilities for simulating the response after applying filters and put those into the BFD on channel 4 (I did check and make sure that all the filters on channel 4 are set to PA). I pressed the store button twice to save all my settings and everything seemed as it should be. However, when I re-tested the frequency response, nothing had changed - all the same peaks and dips were still there. I realize that the spreadsheet predections probably won’t be completely accurate, but it seems like putting all the filters in should at least change something.
When re-testing, the In/Out light and the Engine L and Engine R lights are all lit green. Other lights are all out. Any thoughts? Am I doing something completely wrong? I’ll probably try setting up another channel with a single filter with a 20-30 dB drop at 40 Hz just to see if I measure a change, but Ithought I’d post here for advice as well.
-Kevin
P.S. On another note – I’ve read how much subwoofer placement can affect your frequency response, but I was surprised by just how much. I had two 25 dB dips (70Hz and 80Hz) that were ameliorated simply by moving the sub 6 inches or so. Amazing.