Home Speaker Asylum

General speaker questions for audio and home theater.

Less is more? Or at least more historically correct...

The earliest 620 cabinet I ever saw had nothing on the walls, only a rigid piece of mineral board installed at an angle.

See the angled thing from top to bottom at at http://www.dayton-wright.com/ZZZ-altec620.jpg

That is stiff mineral wool board as is used to insulate fireplaces.

here's a pic of my 618 cab insulated that way

http://www.audioasylum.com/forums/critics/messages/6/64018.html

Slightly later versions had a little bit of mineral wool or cotton batting stapled to the sides.

See http://soundup.ru/images/stories/archive/Classic/Columns/altec-620-speaker-cabinet-original-condition/altec-620-speaker-cabinet-original-condition-7.jpg

I'd say less is better with Altecs. you can either start with a lot and remove a bit at a time until you get there or start witn none and add until you get there.

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Whereof one cannot speak, thereof one must remain silent -- Wittgenstein

Free your mind and your ass will follow -- Parliament/Funkadelic


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