[sdiy] ot: audiophile cones was, Oh I wish I had never saidthat...

patchell patchell at silcom.com
Sun Jan 28 02:28:27 CET 2001


    We really should not be making fun of these people.

    First of all, they can't help it.

    Second.....they are a money making oportunity ;^).

    In fact, I have found that hanging towels up in your listening room soaked in
water removes the chalkiness from the sound.  However, for what ever reason, only
the water that comes out of my tap seems to work, so please send me $100 and I will
send you a quart of water.  Oh yes, polyester towels don't work.  Only pure virgin
cotton towels will work properly, and I can sell you these for $200 each.......


Magnus Danielson wrote:

> From: harry <harrybissell at prodigy.net>
> Subject: Re: [sdiy] ot: audiophile cones was, Oh I wish I had never said that...
> Date: Sat, 27 Jan 2001 18:25:53 -0500
>
> > Hi Nick:
> >
> > My understanding is that they decouple the speaker vibrations from the
> > mounting
> > surface, mainly the floor. The low frequencies are poorly coupled by the
> > tiny
> > contact area.
>
> Strange... I've used to discuss how to make the speaker COUPLE to the
> floor and walls, basically letting them become baffles. If you have a
> bas-speaker in a room, put them tight up in two corners and you are
> basically there, that's good use of the rooms aspects. Doing that, you
> can pump less energy into the speaker for the same effect.
>
> If you place the speakers somewhere in the middle of a wall (say
> halfway to the corners from the center), then the speakers will have
> to emit energy into twice the space-angle as if they where in the
> corners. This is all classical schoolbook stuff.
>
> > Some folk like alternating layers of foam and something heavy.. like
> > wood... concrete
> > etc.
>
> That would form a good decouple of lowfreq stuff, but I wounder if the
> effect would be very prestine. These people tend to use vented
> speakers anyway, and then you've lost before you got started. Most of
> the stuff I've seen is passively filtered, then you have a big looser
> on your hands.
>
> Then you have manufactors that doesn't know what polarity means. Oh
> my. You *really* want to check polarity before you start doing
> anything, especially on bas-speakers. You sense more "punch" if you
> have the polarity right (that is, a positive going kick pushes air out
> of the cone and into your chest, just as a real bassdrum would).
>
> > I like laughing a little bit at this behavior...
>
> Please do, please do.
>
> Cheers,
> Magnus

--
 -Jim
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