High Tech HOECHST Foil, PHD 3µ or 6µ

Special High Power Polypropylene, width 75cm, 3µm or 6µm

Available thicknesses are 3µ and 6µ.

Bothe directions pre-stretched. One side c-treated for better gluing and/or coating. Very good shrinking properties.

 

Furthermore The 3µ type is the top solution for the dust cover of all  Quad ESLs, because of its extreme damping factor, in comparison to PE//Mylar. No Eigentones will be added to the original panels signals. Peter Walker would have used this PP one, given ,it would already have been on the market at that time.

 

 

 

Latest Hoechst new high-technology acoustical foil for best audio reproduction.

 

Main technical data for planar and ESL applications:

Young =5.900!!     e = 2,2 !!  tand = 3x10E-4 !!

 

Definitely, time has come to have a new look on the true suitibility of film materials for ESL projects. The 50's, 60's and 70's of ESL technology are !history!

Time has come to throw over board some antique stories and to stop harping on over and over again, what endlessly has been cribbed without reflection since decades by nearly every one

 

Hoechs OPP - foil  is  famous for its revolutionary low inert distortion and highest possible resonance damping.

 

Formerly innovatively used as copolymere PP-diaphragm material in high-end speakers or monitor loudspeakers like famous BBC's Spendor, Rogers, Harbeth (Harwood), Chartwell and so on. Later copied by allmost all speaker producers worldwide.

 

THIS FOIL IS VERY MUCH MORE SUITED TO FIT THE NEEDS OF ACOUSTICAL APPLICATIONS THAN e.g. PETP , LIKE FOR EXAMPLE DUPONT'S MYLAR 

 

Using this film very clearly audibly results in a more "natural" and less "electrostatic" sound reproduction. It lacks very much of a kind of "Eigenklang", which so very often gives limits to true high-ended reproduction of music by any kind of diaphragm material.

 

It very simply leads to natural , though analytic sonic impressions.

 

Try to get  reproduced the "F-Dur Dreiklang" of any kind of waterfall or some kind "aeolic harps" and you will know what we are talking about.

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