12 inch full range SP-30PATC - diyAudio
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Old 14th July 2014, 09:14 PM   #1
Elias is offline Elias  Finland
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Default 12 inch full range SP-30PATC

Hi,

This 12" Monacor IMG Stage Line full range driver appears very interesting. Looks like very well built.

Any user experience ?

MONACOR INTERNATIONAL : SP-30PATC
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Old 15th July 2014, 06:44 AM   #2
CLS is offline CLS  Taiwan
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Looking good. It seems some design effort is spent in the edge of the whizzer cone. The frame reminds me of P-audio...

About 12" fullranger, remember Radugazon? In his big arrays, he uses 12" fullrangers, too.

Here is the spec. Nice bandwidth and sensitivity, proper Q for OB.
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Old 15th July 2014, 08:56 AM   #3
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Indeed an interesting speaker. Now, these PA things are designed for high efficiency rather than subtlety and detail. Still it would be fun to try building with it. I notice from a quick sim in WinISD that it will be difficult to get real bass with a bass reflex enclosure. Perhaps someone with access to Martin King's spreadsheets could try an MLTL for it?
The f-currve is quite ok, except for a dip at 3khz.

Last edited by talaerts; 15th July 2014 at 09:01 AM.
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Old 15th July 2014, 12:49 PM   #4
Elias is offline Elias  Finland
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Quote:
Originally Posted by CLS View Post
The frame reminds me of P-audio...
Yes I noticed the similatiry too. Anyway, it's cast metal and heavy, what could be better.



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Originally Posted by CLS View Post
Here is the spec.
Is this 'ACR' the same conpany which was affiliated with Fostex in the 1980's

They had drivers like:
Click the image to open in full size.
(Image from Rudolf)


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Old 15th July 2014, 12:56 PM   #5
Elias is offline Elias  Finland
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Quote:
Originally Posted by talaerts View Post
Now, these PA things are designed for high efficiency rather than subtlety and detail.
How that can be seen from the specification ? What specification parameters correlate with 'subtlety' and 'detail' ?


Quote:
Originally Posted by talaerts View Post
I notice from a quick sim in WinISD that it will be difficult to get real bass with a bass reflex enclosure. Perhaps someone with access to Martin King's spreadsheets could try an MLTL for it?
I think a simple closed box placed against a wall will perform just well in a domestic living room. Boundary condition compensates for otherwise lowish Q.


Quote:
Originally Posted by talaerts View Post
The f-currve is quite ok, except for a dip at 3khz.
The dip at 3kHz is the BBC dip, of course !

Click the image to open in full size.


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Old 15th July 2014, 01:05 PM   #6
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Any idea about the cost ?
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Old 15th July 2014, 01:19 PM   #7
IG81 is offline IG81  Canada
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I agree on the P.Audio look-alike frame.

A couple of kHz too high for a proper BBC dip, but...

These things would do well in a Karlson IMO. It's the only pro 12" FR with a relatively low Qt I can think of. Good thing Fs is not suffering from it an up > 80Hz.

A recent thread about a Celestion driver with similar dustcap at the whizzer's edge had the poster remove it with subjective amelioration.
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Old 15th July 2014, 01:43 PM   #8
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Quote:
Originally Posted by Elias View Post
How that can be seen from the specification ? What specification parameters correlate with 'subtlety' and 'detail' ?
It's a 400W PA speaker. In the specs. This kind of FR speaker is more likely used in a guitar amp, for example. Ultimate detail resolution is never a design criterium in such speakers.

I think it is safe to assume that a MarkAudio will sound more delicate and refined... but of course this beast may make up for it with a live kind of sensation.

I am interested to hear it.
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Old 15th July 2014, 05:44 PM   #9
Elias is offline Elias  Finland
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Any idea about the cost ?

Looks like around 120 (incl. taxes)


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Originally Posted by IG81 View Post
A couple of kHz too high for a proper BBC dip, but...
All the references I can remember indicate BBC dip to be at about 3kHz. Is that not proper ?


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Originally Posted by IG81 View Post
These things would do well in a Karlson IMO.
Karlson is the best solution for everything... Or that impression one gets when reading these forums



Quote:
Originally Posted by talaerts View Post
It's a 400W PA speaker. In the specs. This kind of FR speaker is more likely used in a guitar amp, for example. Ultimate detail resolution is never a design criterium in such speakers.
According to this theory, high power handling excludes 'ultimate detail resolution' ?


Quote:
Originally Posted by talaerts View Post
I think it is safe to assume that a MarkAudio will sound more delicate and refined... but of course this beast may make up for it with a live kind of sensation.
It is not meaningful to compare drivers of wastly different sizes.
I'm sure that if Mark Audio would make a 12 inch metal cone driver it would sound quite terrible


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Old 16th July 2014, 12:14 AM   #10
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According to this theory, high power handling excludes 'ultimate detail resolution' ?
When you buy a TAD speaker component, yes then you can have both. But this is obviously not on TAD level.
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