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Here’s a link to images of many IV & IVAs. I don’t see any doped woofers. Dunlavey could have started using them towards the end of production, however. Also, these may be replacements.
Nothing at all wrong with them! I missed a pair an hour away from me for $800. They sold in 8 hours... I just couldn’t figure out a way to get them home, or in my listening room.
They’re quite impressive speakers. I don’t think you’ll be disappointed with them!
Yep, look fine. Fritz uses a current version of them.
The random, non factory look of them actually contributes to reducing resonance modes that occur in the cone itself.
Dunlavy on the model 4s had 3 different versions. The big changes were changing the woofers from Morel to Seas to Scanspeak. The Scanspeak required changes to the crossover and probably to the damping to maintain the Q that John preferred. Along the way Dunlavy sent me 2 new sets of midranges that looked identical but sounded slightly better to my ear. Tom
I believe Tom may have this correct. I owned a pair of Duntech Princesses which were the older sibling to the DAL IV/IVA. Mine came with Scanspeak woofers but when the DALs were introduced they did not. I assumed John changed to a less expensive drivers. If he did change back to Scanspeak woofers near the end of their production then I expect those may offer somewhat better bass.
If you are close enough to pick these up then an audition should put your mind at ease. I think all of Dunlavy's designs were very good if not exceptional.