My design and implementation of a true Walsh sub...Now, that's breaking new ground on this old design. Can't wait to hear more about it. Dale, perhaps you could give us some technical insight into the perceived weakness/problems of the original Walsh drivers and how you have corrected or improved them. Especially, regarding output level and efficiency. |
The Peter Dicks driver parts ways with the Ohm driver in several ways. First of all, it was modeled more accurately. While Walsh was a genius (and so was DaVinci), he was unable to accurately model the concept in a way that would make it reliable. Dicks was able to do that.Dale Harder of HHR Exotic Speakers has been refurbishing Ohm A's & F's for quite some time now. He completely replaces the cone surrounds, new cone material with a lighter mass, and voicecoils using newer materials and technology. He now makes his own versions(TLS I & II) of the Walsh drive speakers and claims that he has solved the power handling and voicecoil issues of the past with a new driver that is more efficient and durable. Here is a list of the improvements(.pdf) he's made on the original designs with his new speakers. TLS I & TLS II specs(.pdf). Here are pictures from his website of how he makes the new speakers. Dale seems to have more hands-on experience and knowledge of the Walsh designs than just about anyone out there. I'll send him and email and get him to join this discussion. |
I sent an email to Dale Harder who rebuilds classic Ohms and now manufacturers brand new A & F equivalents(HHR Exotic Speakers) with a number of modern improvements. He may be one of the only people who can properly answer that question. Hopefully, he'll be able to chime in with some good info |
