Sometimes design changes really mean...cheaper to produce...more profits....re-invent a product to sell the "newest" version...it doesn't necessarily mean better.That would go for just about any manufactured product.
Quoted for truth. You would amazed at the running changes that occur over a products life span - not just with speakers. Cost cutting measures are usually the driving factor. The build quality of today's John Deere riding lawn mowers are nowhere near that of 20+ years ago which also included a Kohler cast iron engine. On the other hand with some products like electronics running changes are filled with incomplete information for consumers because they are not usually disclosed nor seen. Such changes may or may not affect performance, if not there is usually a trade-off with build quality. When companies seek to make improvements with a product in one area, there can also be cost-cutting measures in another area. Got to maintain your margins.
