Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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?????? which design And / OR L and C means a 2nd order spkr level high pass, NO?

Posted by Timbo in Oz (A) on March 7, 2008 at 20:23:23

In Reply to: I like this design more than anything else. posted by sser2 on March 7, 2008 at 19:34:17:

Perhaps I wasn't as clear as I wanted to be!

I was asking - in relation to simple FIRST order High-Pass-only to a tweeter designs, and of the two means mentioned, which ......

is the most economically adjustable - to good / excellent / acceptable, both audibly / measurably! ?

So, what I need/want to do is - come up with a good blend to the acoustic-only midrange roll-off, but to get there as economically as possible.

I want to use, a FIRST-order-only high-pass xover, around 3.5k theoretical - plus or minus what ever it takes - to get the right blend.

knowing - as I now do - that the tweeter's REAL Z under drive, it's size and dispersion, let alone the room/set-up, will affect what I finally settle on.

Either a series spkr-level capacitor, OR

an R&C network on the input to the pre-amp, noting that here, the values for output Z and input Z are easy to measure - AND, don't shift much under dynamic conditions!

And, MIGHT I may be able to use a pot / vane-cap, in the line-level prototype filter, to vary things. And then settle on the fixed values to use!

So, I can't see how we got, from there, into power resistors OR to inductors at ALL!!!

Summing up, your post is not of much use, to me.

try again!?

Warmest

Timbo in Oz
The Skyptical Mensurer and Audio Scrounger

And gladly would he learn and gladly teach - Chaucer. ;-)!

'Still not saluting.'

http://www.theanalogdept.com/tim_bailey.htm

Edits: 03/07/08 03/07/08 03/07/08 03/07/08

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