Yahoo Groups archive

MOTM

Index last updated: 2026-04-28 23:35 UTC

Message

RE: [motm] Mixers and CV

2001-05-07 by Tentochi

I normally use a Mackie 3204, so there is no way to "accidentally" plug
something into a mic level input.  For those of you not familiar with the
3204, it provides 2 mic pre-amps with XLR ins and 1/4" outs.  And then you
have to patch the outs into the mixer itself.  Actually a very cool setup
because the preamps do not have to go directly into the mixer at all.

This was actually just a thought.  I got into a debate with a friend a
couple of days ago.  Good info!

Anxiously waiting for my MOTM one-size-fits-all mixer.

Cheers!
Todd

> -> >You probably would not damage anything EXCEPT if you had
> -> some speakers
> -> >attached.  The 5-10 volts of the CV is many many times
> -> larger than the
> -> >>usual low-level audio signal
> ->
> -> I'm not sure what you mean by low level. 10.96Vpk (or
> -> 21.92Vp-p) is only
> -> 20dBU.  The MIL of most Mackie line inputs is 24dBU, which
> -> is over 34V
> -> peak-peak -- less than the MOTM PS.  Just do not use the mic inputs.
>
> Right - the mixer can be adjusted to accept the 20dBU input with zero
> problem.
>
> My concern was that since the person was asking a question like
> this in the
> first place, I didn't want them to plug the CV into a mic level input.  It
> probably would not hurt the mixer but it would sure increase the
> possibility
> of frying a speaker.
>
> -> The only danger is using signals that are beyond the audible
> -> range.  The
> -> mixer can pass subsonics that can damage your woofers.  If you use
> -> nearfields I strongly suggest fusing the bass drivers, even
> -> if you are not
> -> using synthesizers.

>
> Excellent point too - I was concerned about the high-frequency content of
> the transient causing problems with the tweeters but an LFO running into a
> decent powered amp could cause heating problems with the woofer - our ears
> aren't that sensitive at those frequencies so the temptation would be to
> crank it up...

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.