Magnapan 1.4 and Jordan Modules

[Tom500]

Hi, Tom here in wintery Columbus, Ohio. In our twenties my friends and I would prowl the high end stereo stores to hear stuff we could not afford. Then around 1980 my poor roommate decided he needed better speakers than his JBLs. I was reading a bunch at the time and Jordan had caught my attention (faster than electrostatics!). The roommate was convinced and I helped him make crude boxes. The modules were in "hatboxes" made of two Sonotubes filled with spray foam with particleboard on the top and bottom. Holy Moly the final system sounded fantastic compared to any top end system. The detail. It was a bargain compared to any commercial system. We moved on. I wasted too much money chasing sound until the Maggie's ended up in the basement now powered by a 70s 35watt Kenwood.
Jordan stressed as most important moving mass. The modules were .3 grams as I remember. Not bad for a 2 inch cone with a frequency range of 75 to 24k hz. He also stressed how bad crossovers are.
Now the Jordan drivers have much heavier moving mass but don't need to be crossed at 150hz like the modules.
I have now focused my desire to build some Markaudio speakers as the moving mass of a tweeter in a full range seems to be a relic of the past.

I'm a frail 75yo so be kind,
Tom 😎

 

[planet10]

Jordan-Wtta modules?

We put a pair in wall-mounted TLs in 1976.

dave

 

[Tom500]

Hi Dave. We had the later modules. They were a metal foil cone that had a thin tube attached at the tip of the cone. That went to a voice coil. Jordan told how hard it was to find just the right foil to get controlled flexture of the cone and to find a "goo" for the surround to damp the cone. They were very fragile.