Members IsildursBane Posted April 14, 2011 Members Share Posted April 14, 2011 I'd guess that is a PTC and not a HPF? I don't think so. I didn't know what a PTC was until a minute ago, but all the ones I'm finding are tiny ( well under 0.5 cu in.) - the faulty component in the TX2 circuit was considerably larger and heavier than that: the volume was 2-3 cu in. or more, and at least a few ounces in weight. -Dan. Link to comment Share on other sites More sharing options...
Members Special J Posted April 14, 2011 Members Share Posted April 14, 2011 d&b m4. It can rip you head off and sound great doing it. This would probably be my pick as well. We use and love the EV XW15's and XW12's. I'm also a fan of Meyers and L'acoustics offerings. Link to comment Share on other sites More sharing options...
Members drumstix Posted April 14, 2011 Members Share Posted April 14, 2011 While I havent used one personally, a good friend who has used allot of highend gear really likes the VRX915 monitor. Link to comment Share on other sites More sharing options...
Members oldschooler Posted April 14, 2011 Members Share Posted April 14, 2011 Yeah, another typo. Grrr.I had 4 that I used for acoustic oriented, folk/rock and Jazz shows, along with UPA-1's and 650's. I think Mark and Tony may have some of these as well. I have 4 UPAs and 2 650s but I am using QSC HPR112s for my monitors. Link to comment Share on other sites More sharing options...
Members W. M. Hellinger Posted April 15, 2011 Members Share Posted April 15, 2011 Yeah, another typo. Grrr.I had 4 that I used for acoustic oriented, folk/rock and Jazz shows, along with UPA-1's and 650's. I think Mark and Tony may have some of these as well. Yes. I own and operate 8 ea. of the Meyer UM-1 monitors, 16ea. UPA-1's, 8ea. 650-R2's and 8ea USW-1's. Link to comment Share on other sites More sharing options...
Members stefanoa Posted April 16, 2011 Author Members Share Posted April 16, 2011 How much for one of them UM-1P? Link to comment Share on other sites More sharing options...
Members dennis a Posted April 16, 2011 Members Share Posted April 16, 2011 How much for one of them UM-1P? The current UM-1P, which is a powered version, lists for $6000ish. UM-1 is no longer manufactured so you would have to find used. Link to comment Share on other sites More sharing options...
Members agedhorse Posted April 16, 2011 Members Share Posted April 16, 2011 Those early "P's" used a clever full bridge mode 2 channel power amp biased to 1/2-Vcc, an off the shelf modified 48 volt SMPS and roughly 2or 3 ohm drivers. The +24 volt offset was cancelled out as common mode when operated in the full bridge configuration. Link to comment Share on other sites More sharing options...
Members dennis a Posted April 16, 2011 Members Share Posted April 16, 2011 Those early "P's" used a clever full bridge mode 2 channel power amp biased to 1/2-Vcc, an off the shelf modified 48 volt SMPS and roughly 2or 3 ohm drivers. The +24 volt offset was cancelled out as common mode when operated in the full bridge configuration. Interesting...I didn't know there was more than one version of UM-1P. Link to comment Share on other sites More sharing options...
Members Shaster Posted April 16, 2011 Members Share Posted April 16, 2011 I don't get to work with many high end boxes but this Clair Brothers 12 AM was very nice http://www.clairsystems.com/products/12AM.pdf Link to comment Share on other sites More sharing options...
Members oldschooler Posted April 16, 2011 Members Share Posted April 16, 2011 Interesting...I didn't know there was more than one version of UM-1P. There has been minor tweaks with drivers also. Link to comment Share on other sites More sharing options...
Members agedhorse Posted April 16, 2011 Members Share Posted April 16, 2011 Interesting...I didn't know there was more than one version of UM-1P. I don't recall working on any late model ones, the ones I serviced were early and the application of the stock 48V SMPS was pretty darn clever IMO. That's why I remembered it. They may have changed in later models, don't know. The stuff is generally reliable enough that we don't see all that much of the powered ones for service Link to comment Share on other sites More sharing options...
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