Best Of
Re: Who's Creation Is This?
According to the owner, the driver that is isolated with the tube must be the SDA driver because it only plays with the interconnect cable connected. He did not build them and is trying to sell them for $200. I'd get them just for grins if I was close. If they sounded like crap you could easily sell the parts for that much.
joebass3
3 ·
Re: Post a picture... any picture
Since it's the Friday before of a long holiday weekend, a PSA to encourage all to remember that Memorial Day isn't "the official start of summer". It is something else entirely.
https://storage2.snappages.site/PQQ8RP/assets/files/Dr.-R-Baughman-How-They-Served-scans-23M-49.pdf
Remember the sacrifices of those who gave all so that we have the freedome to sit around today and post cat videos and argue about audio equipment! We owe them everything.
Memorial Day began in the second half of the Nineteenth Century as Decoration Day, when the graves of soldiers who died in the US Civil War were "decorated" with flowers and flags.
Fly your flag this weekend in honor and in memory.
https://storage2.snappages.site/PQQ8RP/assets/files/Dr.-R-Baughman-How-They-Served-scans-23M-49.pdf
Remember the sacrifices of those who gave all so that we have the freedome to sit around today and post cat videos and argue about audio equipment! We owe them everything.
Memorial Day began in the second half of the Nineteenth Century as Decoration Day, when the graves of soldiers who died in the US Civil War were "decorated" with flowers and flags.
Fly your flag this weekend in honor and in memory.
“The Lord will mediate between nations
and will settle international disputes.
They will hammer their swords into plowshares
and their spears into pruning hooks.
Nation will no longer fight against nation,
nor train for war anymore." - Isaiah 2:4 (New Living Translation)
mhardy6647
12 ·
Re: Post a picture... any picture
First one I'd seen in person and up close. Looked worse than they do in any photo, including my own. 😝
bcwsrt
6 ·
Re: Magnet shift repair is easy...
Red loctite is the correct glue to use. It is made for anaerobic conditions and metal use.
pitdogg2
1 ·
Re: Magnet shift repair is easy...
Yep - that'll keep the pole piece stable as you adjust the frame relative to the magnet in your jig. The "magnet shift" phrase is a misnomer, since it's the shifted pole piece that sandwiches the voice coil against the frame and causes a seized driver.
Edit, I'm looking at the above images now, I don't advise following the same process.
First, use a razor blade followed by isopropyl alcohol on a soft cloth to remove the old glue residue. If you use a grinder or dremel you not only will generate metal shards that risk getting into your voice coil gap, but you will also potentially compromise the true flat surfaces of your pole piece, magnet, and frame.
Second, do not put any adhesive on those flat faces. In other words, once you scrape and wipe the old glue off, do not apply new glue to the same spot. If you apply the glue unevenly, this may cause imparallel surfaces between your frame and pole piece, which may cause non-centered voice coil articulation causing potential voice coil interference and even uneven flux density as a function of cone extension. Instead, after cleaning the old adhesive off, put the magnet on the pole piece and center it, and then apply the adhesive in a bead around the shoulder where they come together. Let it try with the pole piece centered. Then, apply the same bead between the magnet and frame before going into your re-centering tool. Center it and leave in the tool overnight so that it doesn't re-shift when you take it out.
Edit, I'm looking at the above images now, I don't advise following the same process.
First, use a razor blade followed by isopropyl alcohol on a soft cloth to remove the old glue residue. If you use a grinder or dremel you not only will generate metal shards that risk getting into your voice coil gap, but you will also potentially compromise the true flat surfaces of your pole piece, magnet, and frame.
Second, do not put any adhesive on those flat faces. In other words, once you scrape and wipe the old glue off, do not apply new glue to the same spot. If you apply the glue unevenly, this may cause imparallel surfaces between your frame and pole piece, which may cause non-centered voice coil articulation causing potential voice coil interference and even uneven flux density as a function of cone extension. Instead, after cleaning the old adhesive off, put the magnet on the pole piece and center it, and then apply the adhesive in a bead around the shoulder where they come together. Let it try with the pole piece centered. Then, apply the same bead between the magnet and frame before going into your re-centering tool. Center it and leave in the tool overnight so that it doesn't re-shift when you take it out.
lawdogg
2 ·
Re: Frozen Monitor 7B woofer (MW6500) repair
I hate computer steps to get stuff done!
Any way...I got pictures from the thumb drive to appear. I tried to copy them to a folder under "Pictures" but something went wrong... Oh well.
Any way...I got pictures from the thumb drive to appear. I tried to copy them to a folder under "Pictures" but something went wrong... Oh well.
Tony M
1 ·
Re: Frozen Monitor 7B woofer (MW6500) repair
For the record, drivers are not magnetized until after they are glued up and dry when being built originally. It is just a non magnetic ferrite ring in the beginning.
pitdogg2
2 ·
Re: Post a picture... any picture
oh yea.
Wisteria vines next door will POP seeds over into our yard in the fall. About 70' or more. But the vines are 60' high or more.
I love their scent.
Wilm. NC is loaded with it.
Wisteria vines next door will POP seeds over into our yard in the fall. About 70' or more. But the vines are 60' high or more.
I love their scent.
Wilm. NC is loaded with it.
Tony M
3 ·