I'm brand new to the forum and, frankly, pretty ignorant about speakers. I'd like to install a D130 '15, 8 ohm speaker in my '64 Fender Vibroverb amp. These, of course, are not easy to come by, especially in their 'unreconed' state, which is my preference. I seel these speakers from time-to-time on e bay, but onlly occassionally those with the 'F' (Fender) designation. I more often see the D130 'full range'. I know the F was marketed as the instrument speaker version of the D130, and I know there were some alterations--to the speaker frame, I believe--for the F model. That said, will the D130 (sans 'F') sound and perform the same in my Vibroverb as the F version? Or, should I hold-out for the D130F?

Also, all my searching to date has been on e-bay, and, franky, I don't really know if that's a reliable source for these speakers or not. I was hoping that you JBL experts might also counsel on reliable, trustworthy sources for finding these speakers. Thank you, Steveokla.