How to fix magnet slip?
jacobmeyerammo
Posts: 53
Hi guys,
Is there a way to fix sliipage of the mangnets for the SDA drivers?
Is there a way to fix sliipage of the mangnets for the SDA drivers?
Answers
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Assuming you mean fix ones that have already shifted, it can be done. As long as the voice coils aren't damaged and the DCR is in spec (measure resistance with a meter) you can use a simple fixture and fix it yourself, or enlist the help of others.
Do some searching here and you'll find lots of info.
lawdogg, xschop and others have posted information.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Would mis-aligned magnets cause a light scratchy noise? The noise only occurs at top and bottom of stroke.
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Yep. Scratchy noise it is. Welcome to the nightmare
It is actually usually the pole piece that is touching the voice coil.
Another thing that can happen is you can have a damaged spider and that can sometimes be hard to detect by eye but usually it is a crack near where it joins the cone. People have repaired them with Ayleens Tacky Glue. I don't know how successful that is long term.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform
