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Yes, 421s are wonderful horn mics, especially for live sound.

On Tue, Sep 30, 2014 at 10:30 AM, Lou Judson <[log in to unmask]> wrote:

> Slightly off topic here, but I still prefer 421s on horns (and sax unless
> there are RE20s available) as I do live sound all the time. In studio, yes
> ribbons are good...
>
> <L>
> Lou Judson
> Intuitive Audio
> 415-883-2689
>
> On Sep 30, 2014, at 8:16 AM, Jamie Howarth wrote:
>
> > Brass waveforms are asymmetrical... The air pressure emanating from the
> annular mouthpiece is pretty much a broadly shaped needle pulse... The lips
> buzz against the mouthpiece which modulates an exhaled breath - there's not
> much negative excursion.
> > Any part of the system that acts non-linearly in the presence of that
> offset will go nuts.
> > I believe (haven't proved) that since the signature sound of condenser
> mics is strongly tied to their resonance/time-freq behavior coupled with
> the asymmetrical pull of the backplate on the diaphragm may be make them
> resonate more intensely when excited by an offset signal like horns.
> Whereas ribbons are more symmetrically damped with a lower freq resonance
> point. Hence the preference for 44s and 77s (and Beyer M130s in my personal
> preference ).
>