Basser Posted October 24, 2005 Share Posted October 24, 2005 Hi all, first post from a newbie. Thanks for the site. I have just bought a s/h Yamaha EMX68S Powered Mixer. The owners manual states that the phantom power is +15V?I thought it was +48v required for condensor mics/devices. Any idea why this difference? Thanks Sean Link to comment Share on other sites More sharing options...
Mr.Si Posted October 24, 2005 Share Posted October 24, 2005 I believe it can be anywhere from +9v to +48v. Link to comment Share on other sites More sharing options...
Chris_R Posted October 24, 2005 Share Posted October 24, 2005 Yup, It can be anywhere between 9v and 52v as far as I'm aware.Hope this helps. Link to comment Share on other sites More sharing options...
Bobbsy Posted October 24, 2005 Share Posted October 24, 2005 It's done that way on economy mixers to save money on the power supply they give you. MOST microphones, DI boxes, etc. will work okay with the lower voltage, but there is some gear out there that wants the whole 48 volts...at that point you'll have problems. Bob Link to comment Share on other sites More sharing options...
Basser Posted October 24, 2005 Author Share Posted October 24, 2005 Many thanks guys & girls,Sean Link to comment Share on other sites More sharing options...
djw1981 Posted October 24, 2005 Share Posted October 24, 2005 If you think about it, most DI boxes only ahve a 9V battery in them. Link to comment Share on other sites More sharing options...
dbuckley Posted October 25, 2005 Share Posted October 25, 2005 I've just done a repair on a DI that can run phantom, ext PSU or battery. On battery it has a series diode, so the rail is 7.2V at best. It has a battery low sensor, but I dont know where that kicks in. On phantom it uses an 18V zener. So this thing'll run down to (I guess) about 6V, but obviously headroom drops with rail. Link to comment Share on other sites More sharing options...
marc Posted October 25, 2005 Share Posted October 25, 2005 Especially on the bigger desks you have a great voltage, as the multi runs can be a lot longer and if you are running a monitor desk on a passive split the more volts the better really. Mk Link to comment Share on other sites More sharing options...
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