Bulkogi Posted June 18, 2021 Share Posted June 18, 2021 As I've posted before, I'm working on refurbishing my Heresy IIs and was wondering about what, if anything, to do with the woofers. Aside from the typical absence of any deep bass, which I understand is simply a design element, I don't have any specific complaints and I don't notice anything obviously amiss. That is, they play loudly and clearly without any odd noises. They're faded and dusty, naturally, but that in and of itself doesn't bother me. So here are my questions: 1. Aside from mechanical failure, what if anything does one listen for to determine if a woofer is no longer up to spec? (I ask because, for example, I was quite pleased and surprised with how much better the speakers sounded after Crites's crossover network rebuild service and was wondering if there might be some similarly noticeable improvement with new or rebuilt woofers). 2. Could anyone comment on whether the Crites CW1228 replacement woofer is an improvement over the original K22, let alone ones that are 32 years old? Again, I'm not expecting deeper bass, though of course would welcome any even if just incremental. 3. Has anyone re-coned their original K22s with the Speaker Exchange kit? If so, what prompted you to do that and was their an improvement? 4. Finally, is there any way to clean the surface of a paper woofer? I tried a toothbrush, and while I was gentle, it did seem to scratch the very surface a bit, albeit only slightly. If there's no reason to replace or re-cone, I'd be happy not to, but I'm also open to it if others have had positive results. Thanks in advance for any thoughts. Quote Link to comment Share on other sites More sharing options...
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