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Discussing how to load a mic output to measure the -6dB point to determine output impedance... The difficulty is that there are several (at least three) types of microphone outputs to be aware

Thank you, Jerry. I have one question: When connecting the load resistor here, should it be connected between Pin 2 and Pin 3 of the XLR? Or should two resistors be connected separately, one between

I believe Jules mad esome kind of mental typo. I maintain this. In all cases, yes. There are several ways. The best is using an impedance analyzer, but I doubt you have one handy, so you can resort

hello Jerry, thanks to your reply. There seems to be a difference between Jules' response and yours. Could you explain it in a way that is easier to understand? Jules explained that the impedance is

I hate to say this, but te dpa site's technical readings are sometimes inaccurate or simply confusing. I know that they are redacted by junior engineers who are not very scientifically exact. No. The

Not really. Symmetrical impedance is not a concept. A connection? (input or output) can be symmetrical. An impedance is a ratio between voltage and current. It does pot pertain to the type of

Balanced is the term. Symmetrical usually refers to multiphase power systems ? Best Regards, Jules Ryckebusch

@jules Thank you for your response. I learned about Symmetrical Impedance from the DPA website

Here is what you asked. - "Output Impedance" refers to the impedance between Pin 2 and ground on the microphone. - "symmetrical Impedance" refers to the impedance between Pin 2 and Pin 3

Hello, everyone. I am someone who has been receiving a lot of help from this community. Recently, I have been studying microphone output impedance. I noticed that there are various terms commonly

By "polarization", do you mean the fact that electrolytic capacitors are not bi-directional, or that they need to see a DC voltag eacross them? There are "bipolar" electrolytic capacitors. they are

I have been using 22uF and 47uF MLCC capacitors for coupling caps with no issues. The impedance is far lower than Aluminum electrolytics. There is one catch -- the Capacitance goes down significantly

Hi all, I've been using polarised aluminium electrolytic caps in my designs as per the advice of members here and also how they are used in schematics like the Alice, etc. This has been going great,

I would like to give a final update on this (marathon) thread. Even if the NT1-a isn't turned on for a while, it still works. No warm-up time is necessary... I recently used it to record lava stone

I had the same experience with them. I ended up ordering some from JLI but spoke to them first and arranged shipping which wasn't the same cost as the actual parts I ordered. I also tried 'Alice' in

Hi Jack, I've had some great results with approx. 25mm diameter, 20mm length and 2-3mm thickness. I'd be interested to know if you get lucky with PI. Last time I checked with them during the summer,

Morning Jack. I have found most of them work. Cylindrical ones make great hydrophones. You want some robustness to them as far as thickness. They key is type of material Please see this for more

?Morning all, I’m on the hunt for some piezo tubes and came across this supplier: Search physikinstrumente.co.uk They seem to have a wide range of sizes and thicknesses available and I wondered

Morning all, I’m on the hunt for some piezo tubes and came across this supplier: Search physikinstrumente.co.uk They seem to have a wide range of sizes and thicknesses available and I wondered what

Today I stumbled upon an interesting project that might also be of interest to some mic builders. It appears that Stuart recently detected a rare sine wave in the magnetosphere, during one of the