Re: Powering the microphones. Could you have a cable made that would be Microdot ( pair ) to TB3F? I have a Naiant IPA that has a TB3M input ( 12v PIP--too much? ). And a stereo mini input. Might just go with the Microdot>Stereo mini.
Yes you can have such a cable made. You'll need a 'Y' cable with female microdots on one end and either a TA3F (mini XLR) or stereo mini-plug on the other (to clarify, TB indicates a panel connector, TA indicates an in-line cable connector). Check with Jon at Niaiant about suitability of the IPA for the DPAs, use of the mini-XLR input verses the stereo-mini-jack input, etc. As mentioned 12V is the extreme upper limit of powering voltage. May be okay, but best to check. Len at Core Sound would say no. Don't fry your new mics.
Darktrain, Ted, or other TS cable makers can provide such cables. You can DIY it by purchasing a pre-terminated female microdot to female microdot cable, cutting it in half and soldering the cut ends to the connector. There are a couple sources for pre-terminated cables, which you can find in the team DPA thread, and other 406x threads.
What recorder are you using when yo do that ? I'd like to know how much juice has to be provided by line-in for this to work. Also, 406x's are known to be power hogs so what kind of batteries did you use and how much time did they last ?
No juice from the recorder, external powering via a battery box.
Will this increase the DPA's maximum SPL value (I think "no", but I ask anyway) ?
No.
I have run a pair of 4060's thru a 9V CA preamp into line-in in a loud environment and got a fully distorted recording. I've been told the way I set the preamp provided too much juice to the mics.
Most likely overloaded the input of the recorder. 4060 is very sensitive and produces a hot output at high SPLs which can overload downstream gear. It's far more common that this is the source of distortion rather than the microphones themselves distorting.
For loud shows, I would recommand 4061's over 4060's.
Agreed.