PeteyPeet Posted September 5, 2014 Report Share Posted September 5, 2014 So I just wired up my brand new pigtailed Sanken CUB-01 for my G3s and it sounds out of phase. I asked the guys at Trew Audio if they heard this before but they haven't (I followed their wiring recommendation). So here I am asking you all if you have encountered this? And if so how did you remedy (besides flipping phase at the mixer)? Is there a way to flip the phase in the locking 3.5mm connector? Thanks in advance Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted September 5, 2014 Report Share Posted September 5, 2014 So I just wired up my brand new pigtailed Sanken CUB-01 for my G3s and it sounds out of phase. I asked the guys at Trew Audio if they heard this before but they haven't (I followed their wiring recommendation). So here I am asking you all if you have encountered this? And if so how did you remedy (besides flipping phase at the mixer)? Is there a way to flip the phase in the locking 3.5mm connector? Thanks in advance Out of phase with what? The wiring in the connector is simple, the audio/positive goes to the tip connection, everything else goes to ground. No connection to the ring. Quote Link to comment Share on other sites More sharing options...
Jeff Wexler Posted September 5, 2014 Report Share Posted September 5, 2014 "Out of phase with what?" --- that would be my question too. If you mean it sounds "phasey" on its own, that's some other problem, possibly a bad mic. If it is out of phase, acoustically, when listening to it against another mic, then it is the wiring (which Eric has explained is quite simple). Quote Link to comment Share on other sites More sharing options...
LarryF Posted September 5, 2014 Report Share Posted September 5, 2014 So I just wired up my brand new pigtailed Sanken CUB-01 for my G3s and it sounds out of phase. I asked the guys at Trew Audio if they heard this before but they haven't (I followed their wiring recommendation). So here I am asking you all if you have encountered this? And if so how did you remedy (besides flipping phase at the mixer)? Is there a way to flip the phase in the locking 3.5mm connector? Thanks in advance Hi Petey, What wiring recommendation were you given? The last time I looked at a CUB-01 it was a three wire mic that couldn't be converted to a two wire setup. Usually, the bias lead can be used for audio, making a three wire mic into a two wire configuration but not on the CUB-01. The problem with the CUB-01 as a two wire mic, is that there is a bypass capacitor on the power lead that makes it very bassy. It is necessary to apply 4 or 5 Volts of power to the power lead and then take audio only from the audio lead. Counting ground, that's three wires and I don't believe that you can hook this up to a G3 and have the proper sound. I tried to find the input circuit on the Sennheiser site but there are very few technical details there. Best Regards, Larry Fisher Lectrosonics Quote Link to comment Share on other sites More sharing options...
studiomprd Posted September 5, 2014 Report Share Posted September 5, 2014 hi and welcome Peety: " it sounds out of phase... " what happened when you: " flipping phase at the mixer " ? (troubleshooting 101)... what Larry said. Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted September 5, 2014 Report Share Posted September 5, 2014 Hi Petey, What wiring recommendation were you given? The last time I looked at a CUB-01 it was a three wire mic that couldn't be converted to a two wire setup. Usually, the bias lead can be used for audio, making a three wire mic into a two wire configuration but not on the CUB-01. The problem with the CUB-01 as a two wire mic, is that there is a bypass capacitor on the power lead that makes it very bassy. It is necessary to apply 4 or 5 Volts of power to the power lead and then take audio only from the audio lead. Counting ground, that's three wires and I don't believe that you can hook this up to a G3 and have the proper sound. I tried to find the input circuit on the Sennheiser site but there are very few technical details there. Best Regards, Larry Fisher Lectrosonics Live & learn. I defer to Mr. Lectros knowledge. Quote Link to comment Share on other sites More sharing options...
LarryF Posted September 5, 2014 Report Share Posted September 5, 2014 Live & learn. I defer to Mr. Lectros knowledge. Hi Eric, One: There are many reasons the company crow resides permanently in my office. Two: If anyone knows a better way to wire the CUB-01, I'd be glad to learn it. Interfacing a CUB-01 to our servo series is a pain. Best, Larry F Lectro Quote Link to comment Share on other sites More sharing options...
PeteyPeet Posted September 5, 2014 Author Report Share Posted September 5, 2014 Hey guys! Thanks for the responses. I have read many of the posts you guys add to. I respect your genius and am grateful for it. I have it wired like a COS-11: black to tip and white and ground tied to sleeve. Yes, my first troubleshoot was to invert the phase in my mixer and that certainly helped the sound issue I had and lead me to the notion that my wiring was wrong. Larry: good to know. I was assured by the service sages at Trew that wiring a CUB to a g3 was not only possible but that they do it regularly. Maybe the trade off is that it becomes out of phase? I just don't know how that works in a two wire connector. Quote Link to comment Share on other sites More sharing options...
studiomprd Posted September 5, 2014 Report Share Posted September 5, 2014 (edited) pete: " Maybe the trade off is that it becomes out of phase? " wiring may reverse the phase, but in order to be "out of phase", it must be out of phase compared to something else; human hearing alone cannot determine the phase of a single microphone. I'm not sure you really understand "phase" as you are using it; audio phase is covered in Jay Rose's books at www.dplay.com Edited September 5, 2014 by studiomprd Quote Link to comment Share on other sites More sharing options...
Jeff Wexler Posted September 5, 2014 Report Share Posted September 5, 2014 I think what he means it sounds "phasey" and this is a characteristic sound that a single microphone can produce. Technically, you are correct, something has to be "out of phase" with something else, but I'm not sure that is what the poster is trying to talk about. Quote Link to comment Share on other sites More sharing options...
PeteyPeet Posted September 5, 2014 Author Report Share Posted September 5, 2014 Thank you Senator. I love a good read and I know I have a lot to learn. Maybe I'm just pulling similar attributes of feeling and hearing with phase. A friend recently got a new Oktava Mk-012 and boasting of the sound we 'played' with it. To me it sounded weak and suction-y but with a pronounced low end. Attributes I would give to phasing issues between boom and lav. We inverted phase and the suction-y feeling went away and the 'missing' frequencies were now there. The wiring of the mic was indeed out of phase upon inspection (wires 2 and 3 went to pins 3 and 2 respectively). This is kind of what I'm hearing/feeling with the cub. But not such an easy wiring fix. OTOH I may be crazy, so I want to hear if anyone had come across this particular issue with this mic and connector. Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted September 5, 2014 Report Share Posted September 5, 2014 The only time reversing the wiring in a connector was required was for a mic that was negative bias like the early model Trams. The ground lead went to the positive connection and the positive and bias lead went to the ground connection. Quote Link to comment Share on other sites More sharing options...
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