Intersonics speakers

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Nickname

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Nov 15, 2006, 9:55:14 AM11/15/06
to baudline
Hello:

While googling Intersonics speakers, I was led to this group.

I noted threads about Intersonics mentioning Thomas Danley, who
apparently worked for them.

My line of work is Pipe Organ Building and repair.

Due to the high cost of building extremely large pipes, some organs
feature a setup wherein digital samples of pipes, located elsewhere,
are reproduced. Usually just the bottom 12 notes or so extending down
to about 16HZ.

We service an instrument with just such a setup featuring Crown Amps
and 2 speaker cabinets: Intersonic / Servo Drive / Contra Bass / 9009C
1017.

In each cabinet the smaller speaker (15") suffers from foam surround
decay.

Can replacements still be secured, or can someone recommend a reputable
firm to rebuild the old ones?

Thanks.

Jim

Sig Blip

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Nov 15, 2006, 12:27:17 PM11/15/06
to baud...@googlegroups.com
Wow, basslist flash back time.  Do your ContraBass' have 2x15" drivers and 2x18" passive radiators?

Many pro-speakers use rubber surrounds instead of foam since it wears better.  I don't have any recommendations but probably any place that repairs speakers could rebuild them with rubber surrounds.  The only problem I see is that changing from foam to rubber surrounds will have an effect on the T/S parameters and mess with the box tuning.

Have you measured any SPL loss or increased spectral distortion from the foam deterioration?  It would be interesting to know how bad it has to get before it becomes measurable.

Jim McFarland

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Nov 15, 2006, 9:08:07 PM11/15/06
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Sig:
 
I will have to get back to you on that one. I have not personally seen these speakers, but I will on Monday.
 
I have subsequently located one local possibility for rebuilding them, but do not wish to discontinue this thread.
 
Film at 11.
 
Jim
 
 
 
On Wed, 15 Nov 2006 09:27:17 -0800 "Sig Blip" <sigb...@gmail.com> writes:
Wow, basslist flash back time.  Do your ContraBass' have 2x15" drivers and 2x18" passive radiators?

Many pro-speakers use rubber surrounds instead of foam since it wears better.  I don't have any recommendations but probably any place that repairs speakers could rebuild them with rubber surrounds.  The only problem I see is that changing from foam to rubber surrounds will have an effect on the T/S parameters and mess with the box tuning.

Have you measured any SPL loss or increased spectral distortion from the foam deterioration?  It would be interesting to know how bad it has to get before it becomes measurable.


On 11/15/06, Nickname <mcfar...@juno.com> wrote:

Hello:

While googling Intersonics speakers, I was led to this group.

I noted threads about Intersonics, mentioning Thomas Danley, who
apparently worked for them.

My line of work is pipe organ building and repair.

yodatech

unread,
Dec 19, 2006, 2:39:44 PM12/19/06
to baudline
I worked for 5 years at intersonics and was on hand when this device
was invented.
while I would be happy to share information it seems that you shold be
able to contact Tom directly as he is working on his own again
James Yearnd

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> <DIV>Sig:</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>I will have to get back to you on that one. I have not personally seen=20
> these speakers, but I will on Monday.</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>I have subsequently located one local possibility for rebuilding them, but=20
> do not wish to discontinue this thread.</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>Film at 11.</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>Jim</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>On Wed, 15 Nov 2006 09:27:17 -0800 "Sig Blip" &lt;<A=20
> href=3D"mailto:sigb...@gmail.com">sigb...@gmail.com</A>&gt; writes:</DIV>
> <BLOCKQUOTE dir=3Dltr=20
> style=3D"PADDING-LEFT: 10px; MARGIN-LEFT: 10px; BORDER-LEFT: #000000 2px solid">
> <DIV>Wow, basslist flash back time.&nbsp; Do your ContraBass' have 2x15"=20
> drivers and 2x18" passive radiators?<BR><BR>Many pro-speakers use rubber=20
> surrounds instead of foam since it wears better.&nbsp; I don't have any=20
> recommendations but probably any place that repairs speakers could rebuild=20
> them with rubber surrounds.&nbsp; The only problem I see is that changing from=20
> foam to rubber surrounds will have an effect on the T/S parameters and mess=20
> with the box tuning.<BR><BR>Have you measured any SPL loss or increased=20
> spectral distortion from the foam deterioration?&nbsp; It would be interesting=20
> to know how bad it has to get before it becomes measurable.<BR><BR><BR></DIV>
> <DIV><SPAN class=3Dgmail_quote>On 11/15/06, <B=20
> class=3Dgmail_sendername>Nickname</B> &lt;<A=20
> href=3D"mailto:mcfar...@juno.com">mcfar...@juno.com</A>&gt; wrote:</SPAN>
> <BLOCKQUOTE class=3Dgmail_quote=20
> style=3D"PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid"><BR>Hello:<BR><BR>While=20
> googling Intersonics speakers, I was led to this group.<BR><BR>I noted=20
> threads about Intersonics, mentioning Thomas Danley, who<BR>apparently=20
> worked for them.<BR><BR>My line of work is pipe organ building and repair.=20
> <BR><BR>Due to the high cost of building extremely large pipes, some=20
> organs<BR>feature a setup wherein digital samples of pipes, located=20
> elsewhere,<BR>are reproduced.&nbsp;&nbsp;Usually just the bottom 12 notes or=20
> so extending down <BR>to about 16HZ.<BR><BR>We service an instrument with=20
> just such a setup featuring Crown Amps<BR>and 2 speaker cabinets: Intersonic=20
> / Servo Drive / Contra Bass / 9009C<BR>1017.<BR><BR>In each cabinet the=20
> smaller speaker (15") suffers from foam surround <BR>decay.<BR><BR>Can=20
> replacements still be secured, or can someone recommend a reputable<BR>firm=20
> to rebuild the old=20
> ones?<BR><BR>Thanks.<BR><BR>Jim<BR><BR><BR><BR> <DIV>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>=0A
> ----__JNP_000_23b0.725c.1917--

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