fet

Looking at various fet-based inline preamps, they all tend to have rather high impedance. For example, popular Klark CT-1 Input impedance 7 kΩ Maximum input level -15 dBu Output Impedance 2 k Maximum gain +25 dB, 10 kΩ load Maximum output level +10 dBu, 10 kΩ load Let's...

Say there is a device that supplies ~54v of phantom power instead of the conventional 48v. If one plugs Cloudlifter, FetHead, etc. into the chain, can these be damaged by the excess voltage?

There are a few designs posted over the internet (4 FETs in line). Is there a preferred one given the components availability in 2022? Or "just buy the Fethead from Amazon" is the way to go?