Selling Damaged Magicos
If there is a qualified technician in your area, you can just order new woofers from Magico, and have them installed. You didn't mention whether the damaged speakers are in your possession, but if they are, it's an alternative to shipping the entire Magico speaker there and back. There's got to be an alternative to selling them as salvage. Best of luck, Dan |
vgrubb Hi. This is tragic, there is a way the woofers could be damaged in transport, if they were dropped very hard, but both woofer is questionable. Seeing there was no external damage this is unlikely. The other way is if the buyers amp went dc on both channels, this will cook the voice coils of both bass drivers only, as the tweeter is protected by a coupling cap in the xover. If you can use a screwdriver? The only way is to take the bass drivers out, there are external screws holding them in, make a note of which coloured wire goes to switch coloured terminal + or - there are only two, and send the drivers only back to Magico for inspection to see if the voice coils have been cooked, they can do a re-cone (with voice coil) if it's needed I'm sure. If the voice coils were cooked, then you have a grievance to deal with the buyer. Or if you don't want to go through all this sell them as is and cop the loss on the chin, I'm in Australia wish I could buy them! Cheers George
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Yes, excellent advice from George. What I would suggest that you do first, though, assuming the speakers are in your possession, is to do some basic troubleshooting with a multimeter. If you don’t already have one, the cost of a decent multimeter would be fairly minimal, and it may prove to be useful for other purposes in the future. What I would do first is to measure the resistance between the + and - terminals of each speaker, with the speaker disconnected from the amp. Under normal circumstances I would expect to see a resistance of something like 2 or 3 ohms or so, given the speaker’s nominal impedance of 4 ohms. If the reading is an open circuit (i.e. an extremely high or infinite resistance), then remove the woofer as George suggested, but before disconnecting it prop it up on something and measure the resistance across its terminals. Again, I would expect to see no more than a few ohms. If you again see an open circuit it would be indicative of a blown driver, probably due to exposure to excessive DC as George stated. And, while the driver is removed, to whatever extent may be possible examine the interior of the speaker using a flashlight, looking for wires that may have come loose, or anything else that looks amiss. Good luck. Regards, -- Al |
