"soundhaspriority"
wrote in message

One professional sound engineer made the following report
about a pair of Studio Concepts C-4's I'm receiving today:
http://www.harmony-central.com/Recor...ects/C4-1.html
He said, "and in each set of mics at least one mic
created low frequency pops. This probably wouldn't be a
problem if used on a kit but even close on a piano this
was audible."

A fuller quote sheds more light for me:

"The noise floor is unacceptable for ambient micing and in each set of mics
at least one mic created low frequency pops. This probably wouldn't be a
problem if used on a kit but even close on a piano this was audible."

Pianos don't make wind, so this is not classic wind-velocity based popping.

I think that the Harmony Central author is complaining about a high level of
background noise. The C4 spec sheet specifies a low enough noise level that
noise should not be a problem if the mics meet spec. This could be a QC
problem.

Frankly, I've never heard a mic pop when used with a musical instrument or
distant-micing unless there was a problem with a loose connection or
vibrations were ransmitted through the floor.

Loose connections are usually the fault of the mic cables not the mics. Some
mic cables work better with some mics than others.

I've seen shock mounts that sagged and allowed metal-to-metal contact and
feed-through even when the rubber bands were new and limber. But, the Studio
Projects SPSK shock mounts look like a design that maximizes the clearances,
so I wouldn't expect feed-through problems with them. However, they may not
have been used, because they apparently can be an option in some cases. Or,
the guy had the shock mounts but just didn't bother with them.