jbl D130

[jake]

Is the back cover of a jbl D130 come off so gauss can be measured? any help thanks jake

[Horn Fanatic]

Is the back cover of a jbl D130 come off so gauss can be measured? any help thanks jake

Greetings Jake -

The pot structure cannot come off unless you access it by way of re-coning. A Gauss measuring probe needs to be inserted directly in the V.C. gap. Meaning, no voice coil in the gap.

Gauss testers can range from $150 to $1600. If you're concerned about the flux density of the magnet, just have the speaker re-gaussed. Bill Hanuschak at Great Plains Audio may be able to perform that task. I understand he is JBL qualified to re-cone JBL speakers.

Good luck,

H.F.