Hello all!   If I'm not mistaken, SPL is based on how many decibels a pair of headphones will output if provided 1mW. Where I get confused is when I read about headphone amps providing 10-20mW (or perhaps 100mW) of output power. So if a given headphone had an SPL rating of 105, why is...

It is absolutely bizarre why Monster would keep that spec a secret.

Does anybody happen to know how many ohms are the Monster Beats Pro headphones? Thanks!

Hello all,   Is it common to hear some hints of static or RF interference noise even with no line-in source plugged into a portable amp? With my amp powered on and with just my headphones plugged in, I would occasionally hear minor static-type of noises. They are not loud at all, but are...

Hi, these headphones are quite interesting to me. Does anybody know how they perform if just plugged directly into an iPod Classic?

I see, thanks. So, if I assume correctly, we can generally plug into any headphone output on any device or amp regardless of its output power rating as long as we turn down the volume at first? I also assume that our headphones SPL rating will determine how it will handle any output level that...

Greetings, this is a general question about headphone usage. I'm a guitarist and we generally should match impedances or wattage from our amps to our speaker cabinets. As I understand it, headphones also have impedance ratings. However, as a rookie with headphone gear, I generally plug my...