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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: ugh.. muzak valve amp?! posted by thoriated_tiger on October 8, 2004 at 04:28:06:
the stuff that Muzak and other non-commercial music providers used were high-duty-cycle amps, designed to run 24x7 in less than ideal conditions. The older tube stuff wasn't too bad but the ability of SS stuff to not need the periodic servicing made them a no-brainer to the bean-counters at the banks and department stores who was them as a necessary evil beyond the drek that was played through them.I know. The owner of the stereo shop discovered that he could go around to the nearby small towns of my college town and sell off Muzak, thereby adding to his sales of conumer receivers and amps. He just sold them on using the local FM easy listening station. I ended up having to use much higher quality amps when the Pioneers and Technics receivers - the same ones some of you pick up at yard sales - died.
One of the things these PA-type amps did was to have 70.7 volt outputs which allowed *lots* of speakers to be tagged onto the output and accomodated the lengths of wire runs without substantial losses. You see this feature on a number of Mac tube amps but that sort of thing was dropped for most consumer gear.
In short, Muzak systems had some different requirements not seen in the consumer amps.
Cheers,
David
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