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The OPA Alice is designed for capsules without a FET, to run off of Phantom power, and to drive balanced signals into a mic preamp or recorder. It really isn’t applicable for this application Best

The FP33 looks indeed like the one device that I would need. But it's also on the heavy side. I had some slightly bigger Audio Development stuff, but mobility and lightweightedness are King for this

That wouldn't be worth a try because it just wouldn't work.

Sorry, the right project name is OPA-Alice

If you're using the simpleP48 powering scheme as specified in the Ambi-Alice instructable, grounding the capsule case will instantly and permanently damage the built-in FET. Don't ask me how I know

Would it be worth a try if i connected the cable shielding to the ground of the capsule case? Or am I risking damaging something by doing so?

It still seems that your goals are in conflict: * XLR in with phantom power * high performance * mix controls or switching * small, lightweight, simple, portable, battery-powered But anyway. Off the

No I want to Merge a Stereo AB with a Mono Mid/vocal mic. I want to be able to switch between: Stereo AB, Stereo AB + mono Mic, Mono Mic And if I can have some degree of balancing the mono mic with

Thanks for your view on this. I have a Zoom, also a Sound Devices Mixpre10ii and many decent mics, so its not really about High fidelity or practicality here. It's more about creating something

Yes, but the case doesn't connect to the circuit ground (Pin-1) of the XLR's. In my instructable I run it all the way up to shield the inner two wires of the Mogami cable. I am also making the three

They look to be shielded. ive attached a photo so you can see what im talking about. They have Mesh in front and the body is soldered to ground on the 4 pads in the right picture. They should be

S1 would allow you to disconnect the input at pin 2 (dont know why anyone would want that...), S2 selects an input impedance (~3150 ohms or 150 ohms).? The MA1 preamp is powered by +48v phantom from

There's a way to make a passive battery box that could bias 3 electret capsules and has the "mono" capsule feeding both the L and R outputs, but it would have a bit of loss from a resistive mix

You are describing a mixer. There are small ones out there that would accomplish this. And as has been mentioned, take the two ambience capsules pan one hard right one hard left and mix the vocal in

Merging two omnis down to mono might not sound that great. They generally don't downmix to mono very nicely. J [email protected]> wrote:

Hi all, I would like to create a little circuit box that merges the signals of two ambient mics (L/R) with a single vocal mic (M) before entering the preamps. So I can record stereo ambient and vocal

I've recently seen the schematic for the Alctron MA-1. However, there are a couple of features that aren't clear and I hope to get some help from the group. On the input side, after XLR1, there are

Aah, OK! So the buzz is due to teh fact that the capsules are not properly shielded. The shield must extend as far as possible to cover most of the capsule. Ideally, even the front of the capsule

They work great except for the buzzing. Im just using a simple p48 circuit so 1 3.3uF cap and a 100k resistor on the xlr plug.

The one on the left is a 3-wire capsule, when the one on the right is a 2-wire.Depending on the circuit, they may be incompatible. Apart from the buzz, does it work?