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Old 28th July 2012, 09:31 PM   #1
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Default Planar for infra

Hello

I am surprised not to find here a thread on a planar for infra.
This is a true question because planar do not have good solution to be completed for down register in a dipole mode...

A french have built a special planar for infra, to complete his Magneplanar, of which he is a true lover. He simply named it "Infraplanar".

The adress : http://infraplanar.free.fr/

Anybody to have heard of it ? Or listened it ?

Last edited by Tiburce2; 28th July 2012 at 09:35 PM.
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Old 28th July 2012, 10:11 PM   #2
Remlab is offline Remlab  United States
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INFRAPLANAR
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Old 29th July 2012, 12:02 AM   #3
sreten is offline sreten  United Kingdom
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Hi,

Real infra bass (down to 16Hz) and panels simply don't
work well due to cancellation and the high SPL's needed.

rgds, sreten.
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Old 29th July 2012, 12:14 AM   #4
Remlab is offline Remlab  United States
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At normal volume levels, HD would probably be through the roof at the lower frequencies. Especially if it's single ended.
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Old 29th July 2012, 03:53 AM   #5
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Quote:
Originally Posted by sreten View Post
Hi,

Real infra bass (down to 16Hz) and panels simply don't
work well due to cancellation and the high SPL's needed.

rgds, sreten.
Hello Sreten,

Listened not in an anechoïd room nor in open space, this infra panels work very well as down as 10 Hz, as shown by the published response curve, and as proved by several music listenings with a lot of systems completed by Infraplanar.

Tests made by Hifi magazines or web sites (Six Moons) confirm that this is a very efficient solution, specially in complement of planar main system.

When my ears destroy the bad pronostics of theory, I believe my ears.
What is the jugement of yours ? Did you ever listen to them ?

Rgds, Tiburce.
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Old 29th July 2012, 04:07 AM   #6
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Hi,

The mean SPL reached by Infraplanar is about 93 dB/1w/1m.
Remind me what is Magneplanar's one ?

What is "normal volume level" ?
If your HP accept without problem high power admittance, the SPL needed even for doomsday films is easy to reach.
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Old 29th July 2012, 10:06 AM   #7
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Sound expensive anybody know the prices? And heavy. I wouldn't be able to lift the big one at my age, I struggle with mine 4' x 2' with ferrites and they only weigh 26 Kgs
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Old 29th July 2012, 12:09 PM   #8
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Hi henry,

That's true, quality as a weight, and a price...

But for those who run after 20 Hz performance by the way of "traditionnal" 46 cm, or best, like 76 cm... in heavy cabinets of thick wood, brassed with iron or other hard wood, isolated from bad vibrations by thick covers of tar or even lead, when no doubled walls with sand inside... that's a weight, too.
And I don't speak of those who build their infra system in the walls of their house : they even can no longer move their infra components !

I find that Infraplnar is a well better solution : that can be pushed easy on the ground of your living room - if not your home music room - to get somme more place for family visits, and with its overall thickness of less 10 centimeters, it can disappear almost completely.

I finish with the price. For this level of quality, it's not a lost charge but an investment because of the long time you are willing to keep it, as soon as you listen to.
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Old 29th July 2012, 01:24 PM   #9
tyu is offline tyu  United States
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Vary cool thanks for the info....two well be needed!.....but what a Sound.
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Old 29th July 2012, 06:58 PM   #10
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by Tiburce2 View Post
Hello Sreten,

When my ears destroy the bad pronostics of theory, I believe my ears.
What is the jugement of yours ? Did you ever listen to them ?

Rgds, Tiburce.
Hi,

That is up to you, though I suspect you haven't explored the
prognostics of the theory regarding the reproduction of 10Hz.

Required SPL for 10Hz to hit the threshold of audibility, nevermind
be usefully audible. The baffle loss for 30m wavelengths etc, any
OB afficiando knows the lower you want to go the less it works.

I'm not going to go there, practical design that works needs
theory that works, and conversely to you I don't take one
iota of notice of listening tests that claim the impossible,
or a least imply fundamental limitations do not exist.

Bass extension without the required SPL is near pointless.

rgds, sreten.
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