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Hello there,

I'm currently facing the following issue - We have this mic:

The thing is - the room were we plan to use it and the shure bodypacks we have are subject to to much interference/drops in signal. We tried everything -
all posible channels - repositioning the receivers - nothing helps. The room is oddly shaped, lots of concrete, quite a few tv/radio transmition antennas around the place.

I'd like to re-terminate the TA4F mic's connector to a regular XLR(m), so the mic can be hardwired via a 10 meters long cable run to a yamaha mixer with phantom power.?

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Looking for a diagram or pinout, quite a lot of different drawings popped up in my search, so:

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- How should I go about feeding Phantom power to the mic? I have little experience with mic building, but I've put six pairs of matched primo electrets

using the simplep48 directions/circuit with great success. Is there any of you kind engineers/micbuilders willing to take a look at the spec sheet and sugest a circuit??
The datasheet says 5 to 10v max at the capsule, so I'm guessing shure packs provide PiP voltages to the mic (seems like it from the shure pinout above).? Maybe just a simple correct

wire-to-pin connection is enough?

- The other thing I've found in shure's FAQ:
TA4 -> XLR
Pin 1 -> Pin 1 & Pin 3
Pin 3 -> Pin 2
Pin 2 & Pin 4 -> Not used
But no mention of phantom. Does that make any sense?

I have 0 budget to do this, have the required neutrik XLR male connector, a few components left from the simpleP48 builds,

the cable run from the mixer to the spot where the mic will be connected is already in place.?
Any light much appreciated!

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I know you said "0 budget", but this is an off-the-shelf solution that is reasonably cheap in Europe: .

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Alternatively, you can wire the Shure lavaliers as SimpleP48. Yes, the Shure lavs have 3 wires, and the SimpleP48 circuit is for two-wire capsules, but you can wire a Shure lav as a two-wire capsule by shorting the black wire to the shield of the 3-wire cable as explained by Shure . Note, I'm not 100% sure about Shure CVL, but this holds true for Shure WL185, and I don't expect a huge difference.

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So in the SimpleP48 schematic, now the red wire in the Shure cable (originally Pin 2: Bias in TA4F) is the [+] of the capsule, while the black wire (originally Pin 3: Audio in TA4F) and shield (originally Pin 1 in TA4F) connected together are the [-] of the capsule.

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Sorry, I’ve given it some more thought and I don’t think SimpleP48 is the solution because you can’t isolate the exterior of the capsule (unless the CVL is already plastic?) and can’t shield it either.

I'm agreeing with Sergio. You need to buy or make a proper balancer/adaptor. Here's another model: https://www.avshop.ca/wire-amp-cable-adaptors-hard/deity-microphonesxlr-3-5mm-to-xlr-adapter

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As Sergio points out,? SimpleP48 requires that the capsule is fully insulated. If not, one touch of the mic body to ground and poof! No more FET. I learned this the hard way.