Thoughts on 2420 in Le175
I have a set of LE175's in jbl Apollo cabinets from about 1967. One of them plays weak and reads a low on the ohms, around 3 from what I recall, the other was around 7. The are marked 8 ohm but have the red dot instead of green, so I figure they are 16. The le175 calls for a D16R2410. I have a NOS D16R2420 diaphragm that I have tried with some improvement but am not happy with it. I've swapped the horns between cabinets to rule out cross overs and other issues. Any thougths?
WOW there is a difference
There is a difference!!. I found a NOS JBL d16r2410, the diaphragm that is supposed to go in the LE175. The horn came alive. What a difference. Now I'm thrilled with my $40.00 garage sale find. They were in pretty good shape, but now are wonderful. Cabinets and fret work were in good shape. A little light sanding, some tawny brown teak stain and a little danish urethane (not poly), new surrounds on the 14's and one new diaphram.:)