OT: Speaker systems was: Re: crystal clear : was : RE: [sdiy] Simple discrete Unity-GainFollower ?

[Magnus Danielson]

From: Don Tillman <don at till.com>
Subject: Re: OT: Speaker systems was: Re: crystal clear : was : RE: [sdiy] Simple discrete Unity-GainFollower ?
Date: Fri, 9 May 2003 23:16:44 -0700

>    > Date: Wed, 7 May 2003 23:08:38 -0700 (PDT)
>    > From: Tim Ressel <madhun2001 at yahoo.com>
>    > 
>    > Horns are acoustic transformers. They match the
>    > impedance of the driver to the impedance of the air.
>    > Because of this they are very efficient.
> 
> And since they are very efficient, the diaphragm displacement is much
> less for a given acoustic output.
> 
> And thus there is very little distortion due to nonlinearities.
> 
> And there is very little "Doppler distortion".

And therefore you can play very loud with low distorsion if you've done your
other homework right.

Just use a propper horn-slope to avoid messing things up.

It *works*! (When I initially looked at horns they seemed like a leftover from
the early days, then I started to read up on modern texts and learned why I got
that feeling and what the remedy was - use propper models and design the horns
accordingly is the short story. - I could even let my HP48 plot the hornshape!)

Cheers,
Magnus