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I took my 808-8As to Lorantz Audio Services for a re-mag( Lorantz is similar to GPA in that when the Rola loudspeaker company came to an end here, its chief designer acquired the tooling for manufacturing loudspeakers). Located in Dandenong, Victoria.
I removed the rear covers, loading caps and diaphragms - Lorantz would do this anyway.
Lorantz will get back to me with the re-mag field strength measurements prior to any decision to ship the drivers.
Stay tuned.
Marshall.
Good to know we have someone here who can perform this type of thing.....thanks for keeping us up to date.Quote:
Originally Posted by mah
Excellent, keep us posted.
mah,Quote:
Originally Posted by mah
Thanks for that.I got the details for a group in Melbourne who advertised remagging.I suspected that they were sending the items to someone else as opposed to doing it on the premises,so I didn't proceed.
My guess is that Lorantz is who they would have been sending it to.
I needed a GPA 604 serviced and they put me onto CPC Productions in Brisbane.
CPC Production Services - CPC Production Services - Audio - Sound - Lighting - Lights - AV - Hire - Repair | CPC Production Services
They did a good job for sure.
Andrew.
Glenhaven
Sydney.
Excuse me if I'm not correct,but CPC don't perform the remag,they send the component to Melbourne somewhere.Quote:
Originally Posted by atilsley
I fully suspect that they all go to the same place.
Murray (CPC) actually sends them to Etone in Sydney if remagging is needed.
He's a top operator.....he supplied me with some 902's & they're just great.
Re CPC...probably so...I was just needing the cones re-done.
Good to know about the Etone supplier.....thanks.
I checked out the Etone website. They offer magnet repair and will repair CD diaphragms in some cases.
Marshall.
808 remag results report from Lorantz Audio Services:
"Unit# ...Flux before(Gauss) ................Flux after(Gauss)
#1 ...12200/13000/14000/13500.....14000/15000/16000/15500
#2 ...16500/14500/14000/16000 ....17000/14500/14000/16000
The four readings are from four measurements made at 90 degree spacing. We tried both impulse and DC magnetizers-both produced the same results."
Altec give 15250 Gauss as the nominal flux density. Unit #1 average is 15140. Unit #2 average is 15375. A good result, I would say.
Marshall.
The bonus is that they match one another better also.Very satisfactory result there,mah.Quote:
Originally Posted by mah
Lorantz:
Lorantz Speakers