- Metcal handpiece - 1 Update
- Marantz PM6004 - 1 Update
| Boris Mohar <borism_void_@sympatico.ca>: May 24 11:32AM -0400 Greetings! My MX500 handpiece went open in the handle. Does anybody know how to take it apart? -- Boris --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
| Lee <cyberwitch@ukonline.net>: May 24 01:59PM +0100 On 24/05/2017 03:16, Phil Allison wrote: snipped for readibilty. After asking the guy for more info about the speakers, as you asked what there were, I now suspect the problem is his end* and he's getting it back as it is. But details anyway, since you asked. >> volume and doesn't go into protect. > ** Are you using a dummy load ? > Please describe. I was using a pair of 8 ohm 100W standard metal cased cermet WW resistors on a big metal plate. One for each channel, obviously. But it does the same with a pair of cheap Gale 3010S speakers as well. >> Other than it being a touch quick to go into protect, does this sound >> like it's actually working properly? Or at least as it was designed? > ** Depends on that mysterious load. See answer above :) >> Where it's normally installed, it's paired with some very expensive >> speakers > ** And we are not allowed to know their identity either? I have been told they are Kef R300, so not that expensive, but I wouldn't like to be buying them. I don't know if they are good speakers or not. He runs them bi-wired, apparently. Personally, I fail to see why running two pairs of cables to the same speaker from a paralleled pair of output posts on the *same channel* makes any difference. But I'm sure it must or they wouldn't do it :) I have asked the guy to double check the wiring for problems**. >> *assuming my sig gen is accurate, of course. > ** Your scope should be accurate enough. > That a secret too? The one I'm using for this is an old analogue Leader LS8050 50Mhz crt scope. I do have a modern Rigol digital 'scope as well fwiw. *Apparently, according to the guy, it's been "trigger happy" from new, but it's been "more sensitive" after a recent speaker move. ** So I suspect the speaker wring, but he's plenty capable of sorting that out. I'm not interested in trying to deal with a potential design/build issue. If he wants it modified he can find someone else to do that. |
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