|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
50.96.110.234
In Reply to: RE: Felt to absorb tweeter reflections? posted by KanedaK on April 13, 2017 at 08:56:43
Agreed, try the notch filter.
I can't tell off hand if/what effect absorption would have on that, it's way smaller than what i have a feel for.
In any case, it wouldn't hurt and on that shape it would be the sides where you would want to put it
Follow Ups:
I'm currently trying the notch filter.
It does work - it does as predicted, removing the 8KHz bump and allowing me to remove the l-pad (with the bump, the tweeter was really too hot), effectively boosting the relative level of frequencies above 10KHz.
But I have yet to decide if I like the result.
The new extended treble makes the sound more detailed but also more rough and unforgiving.
I still don't know if:
1) the new response shows all the flaws of my equipment
2) the notch filter caps sound rough because they are not broken in yet
2) the notch filter caps (Jantzen cross-caps) aren't good enough
3) putting a notch filter wasn't a good idea.
So I will now wait until the caps settle down and re-evaluate.
Hi
Since you're serious and "cutting wire" I would make a suggestion.
First, frequency response is the most audible thing about a loudspeakers sound and most of the problems like say horn honk and such are often related to the electrical / crossover side or can be addressed there. The problem is while there are formula's that tell how to make a filter of such parameters, that is for a resistive load and loudspeakers can appear to be sort of like a resistor to nothing at all like one.
Those changes can be a huge factor for example, horn honk particularly older designs before a computer could clear the forest.
Also, VASTLY more important than having a particular pedigree component is having the right value for that task, I can't stress that enough.
It has never been easier to approach this scientifically too.
You're on the edge of a fascinating area, if you're interested before you spend more money on parts, investigate LSPcad (there are other programs but I like that one) because once you can take a response and impedance measurement and enter those into the computer model, you have opened up a new world so far as making things like passive filters that work right into real loads.
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: