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Opinions: Alesis Point Seven Ref. Monitors

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HehHeh

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Feb 16, 2000, 3:00:00 AM2/16/00
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I was looking at a set of Alesis Point Seven Shielded Reference Monitors for my
DAW-based home studio. I need shielded speakers becase they will be positioned
on either side of my computer monitor. Does anyone own these or has anyone
tried them?
Brian Stephens
Freelance Drummer/Percussionist
Author/Percussionist
Website: http://www.brianstephens.com

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stephen

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Feb 18, 2000, 3:00:00 AM2/18/00
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alesis just sucks.. get tannoy or auratones or something else.. you can buy
a metalic looking tape.. i tihnk it is called shielding tape.. and cover
your monitor or speakers or something with it.. or just put the tape on a
board or something and put it between your speakers and monitor.. but alesis
suck
<jsl...@millerthomson.ca> wrote in message
news:88ek3f$fr4$1...@nnrp1.deja.com...
> I've compared them to Alesis Monitor Ones and Monitor Twos, and I liked
> the Point 7's a lot better than either of those. That's not really
> saying much though. I thought the Monitor Ones and Twos were awful. I
> havn't personally tried them, but for a cheap sheilded monitor I've
> heard very good things about the Tannoy Reveals (both powered and
> unpowered versions). You should give those a listen.
>
> - J. Slator
>
>
> In article <20000216003023...@ng-fc1.news.cs.com>,

> hiredd...@cs.comDUMPJUNK (HehHeh) wrote:
> > I was looking at a set of Alesis Point Seven Shielded Reference
> Monitors for my
> > DAW-based home studio. I need shielded speakers becase they will be
> positioned
> > on either side of my computer monitor. Does anyone own these or has
> anyone
> > tried them?
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.

sjjoh...@my-deja.com

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Feb 18, 2000, 3:00:00 AM2/18/00
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In article <88io5g$n5$1...@gaddy.interpath.net>,

"stephen" <erlen...@interpath.com> wrote:
> you can buy a metalic looking tape.. i tihnk it is called shielding
> tape.. and cover your monitor or speakers or something with it.. or
> just put the tape on a board or something and put it between your
> speakers and monitor..

Well ... yes you can do this. It won't actually accomplish anything,
but you can do it.

(Incidentally, I haven't used the point 7's, so I can't tell you much
about them. There are a number of alternatives, including the Alesis
M1s, which are powered ("active") monitors.)

An excerpt from the rec.audio.pro FAQ:

Q10.6 - My near field monitors are affecting the colors on my video
monitor. What can I do to shield the speakers?

Despite a lot of folk lore and some very impressive sounding wisdom
here on the net and in showrooms, there is effectively nothing that you
can do to the speakers or the monitor, short of moving them away from
one another, that will solve this problem. The problem comes from the
magnetic field created by and surrounding the magnets in the
loudspeaker. It's possible to design a magnet that has very little
external field, but it can be an expensive proposition for a
manufacturer. If the magnets do have large external fields, the only
technique that works is by solving the problem at the source: the
magnet. Special canceling magnets are used, sometimes in conjunction
with a "cup" shield directly around the magnet.
You'll hear suggestions from people about placing a sheet of iron or
steel between the speakers and the monitor. That might change the
field, but it will not eliminate it. As often as not, it will make it
worse.

You'll also here from people about shielding the speaker by lining the
enclosure with lead or copper. This method is absolutely guaranteed to
fail: lead, copper, aluminum, tin, zinc and other such materials have
NO magnetic properties at all, they will simply make the speaker
heavier and won't solve the problem at all. There is but one material
that has a shot at working: something called mu-metal, a heavy, very
expensive, material designed for magnetic shield that requires extremely
sophisticated and difficult fabrication and annealing techniques. Its
cost is far greater than buying a new set of speakers that does not
have the problem, and it may not even work if the majority of the
offending field is radiated from the front of the speaker, which you
obviously can't shield.

Try moving the speakers relative to your monitor. Often, moving them an
inch or two is enough to cure the problem or at least make it
acceptable. Sometimes, placing the speakers on their sides with the
woofers (the major offenders in most cases) farthest away from the
monitor works.

stephen

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Feb 18, 2000, 3:00:00 AM2/18/00
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ok .. point taken...

that makes sense..

"Mattia Valente" <mae.v...@std.vu.nl> wrote in message
news:38ADAC68...@std.vu.nl...
> When you shield a guitar with conductive paint and/or tape, it prevents
> hum due to outside M interference..won't stop really major stuff though.
> NOt sure you can extrapolate to speakers..
>
> stephen wrote:
> >
> > Well i know that my guitar tech uses a certian kind of shielding tape in
> > guitars and everything.. {pickups have magnets } but anyway.. its
strange
> > that most computers use non cunductive / non magnetizeable frames.. but
the
> > monitors are never shielded ..

stephen

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Feb 18, 2000, 3:00:00 AM2/18/00
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thanks Dick!


you could try this website
http://www.mushield.com/

they sell enclosures for monitors that stop magnetic interference..


<sjjoh...@my-deja.com> wrote in message
news:88k7kg$era$1...@nnrp1.deja.com...

sjjoh...@my-deja.com

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Feb 21, 2000, 3:00:00 AM2/21/00
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In article <88kmcq$qq$1...@gaddy.interpath.net>,
"stephen" <erlen...@interpath.com> wrote:

> you could try this website
> http://www.mushield.com/
>
> they sell enclosures for monitors that stop magnetic interference..

Yes -- they apparently sell enclosures that use mu-mutal, which was
mentioned in the excerpt from the r.a.p faq, and which is quite a ways
away from wrapping tape around a board. For those interested, the web
site includes a form for requesting a price quote.

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