Home General Asylum

General audio topics that don't fit into specific categories.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ General Asylum ]
[ Alert Moderator ]

RE: Seeking suggestions on 100 Hz 10+ dB attenuation (long)

Can you separate the low amp and the high section ? If so it is a simple matter of a low pass filter.

For -6dB just an R/C followed by another R/C with values like five times the first one.

If you can't separate them then there also has to be a high pass at a bit higher at -6dB, same deal, R/C and then another R/C.

There are also ways with OPAMPs but I don't do that. I use passive and boost the gain enough to compensate. Some amps and receivers do this in their tone controls with quite good results.

Actually I designed a set of tome controls with no real phase shift, but there is no way they can be used here, I think. Maybe if I think on it for a bit I could come up with something.

And there is always between the amp and speaker. A simple cap and coil, and if that isn't enough a second cap and coil. I could give you the values easily and then you can DIY with parts form a speaker place because these would be about the same as crossover parts.

Another solution would be a 1/3 octave equalizer. Many of them are pro or semi-pro and they are not really cheap, like we care. But if you got a bump at 100Hz it is probably not just at 100Hz, it may span almost an octave, like ½ an octave each way. The 1/3 octave EQ gives you very precise control and you don't have to do anything but hook it up.

I take it for some reason you don't want to try moving the speakers. So be it.

This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]

Follow Ups Full Thread
Follow Ups
FAQ

Post a Message!

 Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]