Calling
@ecc83 ...
How can a passive device spec state that "Gain is 21 dB," like this Shure XLR to 1/4" (balanced low to unbalanced high) impedance matcher?
I'm guessing it's simply the voltage increase, at the expense of some current loss in the transformer, so all that's being reported is the difference dBU or dBV calculation, but is that really "gain" in the usual sense?
I dont know if the ohms is measured at some freq?
But I have two of these and dead-unplugged no sound, the resistance is 50ohm low XLr side and 1.4kohm on the high side, 1/4' mono.
The only thing inside this barrel is a transformer.
add: I ran the 545 into the Z plug thing, and then compared a standard mic in to the mic/instrument in using the plug thing...and the inst HiZ was a lot louder, but in my setup theres a lot more noise which I am leaning to is RF noise? but either way.....I suppose there is a GAIN increase...but its not anything I would use.
When I use a Cloudlifter or Cathederal Pipes booster I dont get any of the noisy crap, the boosters are a nice clean boost.
I dont plan on using an instrument input HiZ for any dynamic mic duties...lol
Its starting to seem like comparing New tech rubber car wheels to caveman rock wheels... as for HiZ mic , Ill use an old texas slang...El Paso!
No wonder those impedance things have been around forever in my junk drawer and not needed.
I think the LOWER-Z I ordered will be a good product , I dont know whats inside it a resistor? a transformer?...for preamps that dont have impedance knobs. Only $14 so, its similar to the Shure A85F, but better I will predict. Just having XLR on both ends is better for starters.