0 Members and 1 Guest are viewing this topic. Read 85165 times.
I vote for another roadshow. Any chance of that happening AJ?
Yes, there was a trend towards neo drivers for a while, then came the neo fiasco and corresponding prices skyrocketing...which seems to be subsided...a bit. Neo woofers really help!!
I don't get it. Neo woofers?
Woofer magnets made out of an alloy of neodymium, boron, and iron. As opposed to the ferroceramic magnets that have been standard since the 1970s. Neo magnets are much more powerful for their weight, so they greatly reduce the weight of speakers using them.For a visual comparison, here are two B&C 8" woofers.Neo:Ferrite:
So, the M2 woofers use these, I take it?
No. Nor the M1. Hence my concerns about tour. More weight = more shipping drama chances. The M1 tour pair took a pounding. These aren't typical 2 way 5-6" monitors either, by a long stretch.
What you need is a Mid Atlantic rep willing to offer auditions to those interested. It would be a tough job, but I'd be willing to volunteer. You have my address to send a complimentary demo pair....
Then there is the venerable Alnico Speaker Magnet Type, but cost is the issue:Jim
Well, that and the fact that Alnico is unsuitable for high quality speakers because it's so easy to demagnetize. Every "vintage" speaker that I've heard (JBL, Altec, Tannoy Gold) has had the wooly bass that comes from a weak motor. Since these did not start off weak-motored, one can safely infer the cause was Alnico demagnetization. Here's a fun story that David Smith (designer of the outstanding Snell XA line, who also worked for JBL, KEF, McIntosh, and PSB) told Lansing Heritage about those obsolete magnets."The potential demagnetization of Alnico was also noticed at the time. I distinctly recall Greg Timbers having fun with modifying the parameters of Alnico woofers at will during development: "I think the Q is a little low on this one. Maybe a 2 dB drop in sensitivity would be about right. Lets give it full output for a second from the Crown DC600....Brrrapp. Curve it again and, yes, that's about right." -http://www.audioheritage.org/html/perspectives/smith.htm
All magnets can go out of alignment or demagnetize, it is real cheap to have Alnico Magnets re-magnetized:
I have used Orange County Speaker for several recons on Alnico speakers and couldn't be happier. If I ever get a chance to get a pair of Tannoy's, I will jump on it if the price is in my reach....
But we are bird walking, back to the SAM1's
I'm not sure they went with the "old school" alloy just for marketing.
There might be something to the magnetic field / voice coil interaction that affects sound more than we currently understand.
I remember testing 7" ScanSpeak drivers with a friend a few years back. Identical drivers: cone, voice coil, surround, basket (but one with a smaller magnet) sounded way different.
Page created in 0.03 seconds with 27 queries.