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EAW JF80 - Rebuild

K

KG-Refurb

New Member
Have an EAW JF80 PA Speaker am trying to put back in action. This is the early edition with two boards making up the X-over network.
Boards use ceramic resistors as follows: R1 - 3.75 ohm, R2 - 18.5 ohm, R3 12.5 ohm, R4 - 2.5 ohm, R5 - 0.33 ohm, & R6 - 4.7 ohm.
All @ 25 watt; (1) each.
These look to be un-obtainium, anybody know a good source for these?
Can I make substitutions, if so what are the rules??
Still a little green on this rebuild hobby, so support is greatly appreciated.
Also, EAW does not sell parts, but were great help in supplying schematics

Thanks for your time on this!!
 
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Was able to find all but the 2.5 and 18.5 ohm resistor. at Parts Express. The 18.5 ohm resistor could be created by connecting a 16 ohm and a 2.4 ohm in series. And substitute another 2.4 ohm for the 2.5. That would be well within tolerance for your application. They're the green 20 watt 1% precision resistors which should be OK. Mount them so they stand off from the circuit board. Resistors generate heat so you want air circulation all around to compensate.
 
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