Behnirnger monitor radio noise..

Archived from groups: rec.audio.pro (More info?)

Hi,

I have a pair of Behringer Truth B2031's (active), that tend to pick up
and amplify radio interference -- sometimes quite loudly. It wasn't a
problem for me before, but I recently moved to down-town Salt Lake City
-- a much busier environment.

Is there anything I can do to isolate these monitors so they won't pick
up the noise?

--
Dilvie on the web:
- http://www.dilvie.com/
- http://download-electronica.blogspot.com/
- http://movie-trailers.blogspot.com/

Archived from groups: rec.audio.pro (More info?)

In article <1105662848.437470.268570@z14g2000cwz.googlegroups.com> dilvie23@gmail.com writes:

> I have a pair of Behringer Truth B2031's (active), that tend to pick up
> and amplify radio interference -- sometimes quite loudly. It wasn't a
> problem for me before, but I recently moved to down-town Salt Lake City
> -- a much busier environment.
>
> Is there anything I can do to isolate these monitors so they won't pick
> up the noise?

What's the source of interference? Broadcast stations? Radio? TV? AM?
FM? Amateur/CB radio? Taxi/Police radios? Cell phones? Neon signs?

Do you get the interference on anything else in the house? TV sets,
telephones, fillings in your teeth?

You can use shielded cable for your connections (you probably already
are), you can use balanced connections, you can get a power line EMI
filter, you can get a better power line EMI filter, you can move.

Do the speakers pick up radio stations when they're just powered up
and not connected to anything else, or could the problem be somewhere
else in your system?



--
I'm really Mike Rivers (mrivers@d-and-d.com)
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me here: double-m-eleven-double-zero at yahoo

Archived from groups: rec.audio.pro (More info?)

Is that the model with the built in FM tuner ??? :-)



Eric <dilvie23@gmail.com> wrote in message
news:1105662848.437470.268570@z14g2000cwz.googlegroups.com...
> Hi,
>
> I have a pair of Behringer Truth B2031's (active), that tend to pick up
> and amplify radio interference -- sometimes quite loudly. It wasn't a
> problem for me before, but I recently moved to down-town Salt Lake City
> -- a much busier environment.
>
> Is there anything I can do to isolate these monitors so they won't pick
> up the noise?
>
> --
> Dilvie on the web:
> - http://www.dilvie.com/
> - http://download-electronica.blogspot.com/
> - http://movie-trailers.blogspot.com/
>

Archived from groups: rec.audio.pro (More info?)

Eric wrote:
> They pick things up things like the microwave, paper shredder, and
> miscellanious noises from outside, etc...
>
> They pick up noise when they're not connected to anything, but they
> tend to pick up more noise when I have them plugged into my mixer,
and
> I plug other things into it (even when the mixer input and output
> volumes are zero). The mixer in question is an event ez-bus.
>
> --
>

Usually RF interference gets into audio equipment via the audio cable
or via the power cables. Check the chassis ground connections on your
input and output cables.

It is unususual for RF to get in directly via the chassis. Usually you
have to be very close (1/2 mile) to the Tx for this to happen.

Mark

Archived from groups: rec.audio.pro (More info?)

Paul van der Heu <pvdh@xs4all.nl> wrote :


> Actually sound to me this guy has a probem with bad earthing and
> conductive loads dirtying up his 'powergrid'..

Hmm should be inductive loads, not conductive..
--
Bill Gates can't guarantee Windows,
how are you gonna guarantee my safety..
--John Crichton - Farscape pilot