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Magnepan 1.7 - Measurements

Posted by dion@pc.dk (A) on July 15, 2011 at 07:45:29

I have listened very close to the diagram on my Magnepan 1.7 to try to hear the 3 way system.
But I can only hear it as a two way.

So now I made some measurements to see if the microphone can discovery it…

1. 10 mm in the diagram:

And here the measurements for 10 + 20 + 30 mm:

A: Blue=10 mm, B: Red=20 mm, C: Green=30 mm

A: Blue=40 mm, B: Red=50 mm, C: Green=60 mm

A: Blue=100 mm, B: Red=140 mm, C: Green=180 mm

A: Blue=220 mm, B: Red=260 mm

And here 3 measurements out in the room from 1 m + 2m + 3m:

A: Blue=1m, B: Red=2m, C: Green=3m

As you can see either my ears or the mic found the missing third speaker … Or is it the hi tweeter that is running from 6khz and up ?
So the crossover freq is 600hz and 6000hz

At last a measurement of the woofer without the att + fuse maybee the series crossover will be confused:

Edits: 07/15/11 07/15/11 07/15/11 07/15/11 07/15/11 07/15/11 07/15/11 07/15/11

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