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Ben

Lav mic > XLR... not as simple as suggested

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Hi all. I've seen a number of reviews for the various 3.5mm > XLR adaptors that convert phantom power to low voltage power for lav mics which all suggest things are straightforward, even when mixing manufacturers. I'm getting very variable results. 

I got the Deity D-XLR to experiment with. It doesn't work with a RodeLink Lav nor with a Sennheiser ME2, but it DOES work with a Sennheiser MKE1. Could this be a difference in how they're wired, or in the power they require? 

I understand the D-XLR isn't designed for anything but a few Deity mics, but if it powers and works with MKE1, I'm scratching my head. 

If anyone has any thoughts, I'd appreciate it. I'm happy to buy a Rode VXLR and keep experimenting, but I'd like to understand more and it's hard to find details of how these things are wired. 

I'm aware Sennhesier have their own £170+ adaptor. Ultimately, I'm trying to build a kit of affordable wired lav mics, adapted from 3.5mm, ideally buying used. 

 

  

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12 hours ago, Ben said:

Could this be a difference in how they're wired, or in the power they require? 

 

Yes sir.  Different transmitters can require different lavs to be wired different (specific) ways.  So if a specific lav is wired to work with specific transmitter, it may not work with a different transmitter(and by extension, an adapter designed for a lav with a specific wiring pattern).

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Posted (edited)
11 hours ago, Run&Gun said:

Yes sir.  Different transmitters can require different lavs to be wired different (specific) ways.  So if a specific lav is wired to work with specific transmitter, it may not work with a different transmitter(and by extension, an adapter designed for a lav with a specific wiring pattern).

Thanks R&G. It just surprised me that Sennheiser seem to have a pretty fundamentally different way of building the MKE1 and ME2, despite the obvious difference in quality of capsule, cable, etc. Both of these mics are designed for the same transmitters. 

Just for anyone searching in the future, I got a Rode VXLR Pro and this works with all three mics. It's also about five times heavier than the Deity D-XLR, which now seems more like a passive adaptor to me. I suspect the Deity is a very different design and isn't supplying power in the same way - maybe it's doing something clever with specific Deity mics. 

 

Edited by Ben

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I know Sony and Sennheiser wire their lavs with 3.5mm jacks differently, but it really surprises me that two Sennheisers are different to one another!

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