Titanship said:Since pre-amps provide a 1/4 inch, and a 3-pin connection out, is there ever a reason to use the 3-pin?
I thought common knowledge says "use only the 1/4 inch out."
titan
Mark7 said:IIRC XLR outputs are usually +4 dBU, whilst 1/4" are usually -10 dBV. So which pair you use will depend on the impedence of the connections at the other end.
Mark7 said:I'm a little confused as the DMP3 doesn't have XLR Outputs, only 1/4" phone jacks. According to the manual these have an impedence of 500 ohms (Zs if you're American). How this relates to the whole -10/+4 dB thing I have no idea. You might like to download the DMP3 manual from http://www.m-audio.com
If you don't mind me adding to your point just a bit, Richie, the difference between the differential/single-ended implementations of +4dBu systems is the available headroom. Typically, these amount to the difference of a clip point of +22dBu (single-ended) and +28dBu (differential).Richard Monroe said:Correct. And it's not that rare at all. My Avalon has unbalanced +4 XLR outs, as well as balanced outs, and my Joemeek has balanced and unbalanced 1/4" trs outs, both +4.-Richie
McQ said:Also, a finer point (FWIW): balanced systems may also be single-ended. What we casually refer to as "balanced" we ASSUME that it is also differential (not necessarily). I think Mackie--in an effort to save costs--was the first to contribute to this confusion for the mass market: many/all/some of the Mackie mixers that have balanced inputs/outputs are, in fact, single-ended-balanced not differentially-balanced...
More useless nerdy information from Austin,
McQ
Hey Tex!TexRoadkill said:Is that the same thing as what Soundcraft calls 'ground compensated' balanced outputs?