Posted by lon [ 209.103.193.161 ] on March 12, 2004 at 18:28:20:
On Fri, 12 Mar 2004, Lon Ponschock wrote:
>
> Looks pretty goofy still, but I now have the tubes coupled
> differently to keep the length of the line but not standing 7 ft high.
>
>
> a.
> |-(
> | -( b.
> | |
> | |
> | |
> |++ |
> ______
>
> So the tall part has the speak in an elbow at a. The sound goes
> down through the pipe, makes an upturn and comes out through another
> elbow at the port end b.
>
>
> The interesting thing here is that the whole assemblage is
> demountable to reconfigure without new construction.
>
> Once you get past the sewer pipe idea it sounds pretty good.
> A question I have for the experts is: should the port more properly
> be placed on the short end and closer to the listener with the 1197
> driver at the higher pipe a farther from the listener? Also, since
> I'm just messing arround with lengths, is there some ideal to
> shoot for?
>
>
> Since these things are on rotateable elbows, the base can be put out
> of the way next to a wall and the elbows turned to focus toward the
> listener.
>
>
>
> The only modification internally is a small piece of pillow
> stuffing directly behind the driver sort of wadded in there.
>
> My leads are soldered onto the driver and the speajer wire
> length is runs from the driver all the way out through the
> port tube. Connection to the speaker leadsis with wire nuts.
>
>
> So far I've only assembled one of these things. There is no stereo
> image but the clarity seems pretty good.
>
>
>
> The organ concert is on tonight... that's the big test.
[Note on stick figure drawing above: The editor does not show
the same image you see, so you'll have to use your imagination.]
>
>
>