I like that headgear>headphones currently has filters for manufacturer and category, but the market has changed in a manner that adding a third filter for headphone impedance will be very helpful for users.
In years past, one could generalize that IEMS and earbuds were the only headphones acceptable for portable player use. But the good news is that the market has responded and there are a number of on-ear and over-the-ear headphones that have the relatively low impedance profile that portable amps and players prefer. For example, the Beyerdynamic T5p/T50p/T70p headphones.
But good luck finding over-the-ear or on-ear low impedance headphones quickly here with the current filters.
Whether you implement specific impedances or impedance ranges in the filter, I defer to the geniuses at this site.
Thanks for considering this suggestion!
Edited by walden777 - 7/8/14 at 5:02pm