I recently purchased/traded for two goliath II Jr.s One sounds great but the other sounds weak and wimpy. I opened the backs and found that the weak and wimpy sounding one had Emminece Delta speakers in it while the one that sounds great had no name sticker on the speakers. Just a silver back with someone's initials (LP) written on them in magic marker. Also the neg/pos leads had screw in binding posts that look similar to the ones on my Bag End 15 speaker. So I am assuming that the silver backed speakers are the originals and not the weak and wimpy sounding delta's. Can any one tell me where I can get two replacement 10's for this cab and who makes them? I have also placed this question on SWR's message board. We'll see how that works. Despite the one weak and wimpy sounding cab the two cabs still sound great together. I would just like to get them both up to par.