The Audio Technica ATH-M60x are a much better critical listening on-ear than the Koss Porta Pro KTC. The Audio Technica have a better build quality, a better-balanced sound, and look much more premium and durable than the Koss. They also have replaceable cables and a closed-back design that isolate a little better in noise conditions. On the other hand, because the Koss are open, they deliver Overview Prices Reviews Specs + Add to comparison. Home > Headphones comparison > Focal Spark vs Koss Porta Pro KTC. 34 points. Focal Spark. 36 points. Koss Porta Pro The Massdrop X Porta Pros are dark and hard to wear on the first time, but the bass, the power and quality of the sound, the good it can feel when set to Light comfort mode, and the joke price of 30$, make this some great pair of headphones.This is all coupled with the good quality of the carrying pouch (although I can't seem to make the Why is Koss Porta Pro KTC better than Sennheiser HD 599? Can be used as a headset? Write a review. Design. Fit. On-ear. Over-ear. The fit of the headphones Milwaukee, WI USA – February 7th, 2012 – Koss Corporation, the Milwaukee, Wisconsin-based high fidelity stereophone manufacturer and inventor of the world's first SP/3 Stereophone in 1958, has made the highly anticipated Porta Pro KTC available for purchase earlier than originally announced. Overview Prices Reviews Specs + Add to comparison. Home > Headphones comparison > Koss Porta Pro KTC vs Motorola Earbuds 2. 37 points. Koss Porta Pro KTC. 28 points. Overview Prices Reviews Specs + Add to comparison. Home > Headphones comparison > Beats Solo Pro vs Koss Porta Pro KTC. 54 points. Beats Solo Pro. 39 points. Koss (Koss PortaPro KTC) The first number of the IP rating refers to protection against dust, while the second number refers to protection against liquid. E.g. a first number of 6 denotes that it is completely dustproof, and a second number of 7 denotes that the device can withstand full immersion in water. Koss Porta Pro Limited Edition Rhythm Beige On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Retro Style, Includes Hard Carry Case, Wired with 3.5mm Plug, Rhythm Beige $35 Overview Prices Reviews Specs + Add to comparison. Home > Headphones comparison > Blue Yeti Mix-Fi vs Koss Porta Pro KTC. 49 points. Blue Yeti Mix-Fi. 36 points. Koss lhHiE.