Hoping to find one of these with the original cone in good working order.
Thanks,
Greg
WTB JBL d-130 15” speaker
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- Dave Grafe
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- Posts: 80
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- Dave Grafe
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The "F" modification has nothing to do with mounting and is fairly significant. The gap was increased to mitigate heat-driven voice coil deformation at high power levels causing it to bind in the gap. Widening the gap provided necessary clearance to more than double the power handling, from 25-30 watts to 75-80 watts. The voice coil of the D130F still deforms it just has more room to do it in without snagging and failing catastrophically.
Be of knowledge...
https://audioheritage.org/html/history/ ... unding.htm
https://audioheritage.org/html/profiles/jbl/d130.htm
Be of knowledge...
https://audioheritage.org/html/history/ ... unding.htm
https://audioheritage.org/html/profiles/jbl/d130.htm
- Erv Niehaus
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