This item Voarmaks Great Size Over Ear Pads Compatible with Koss Portapro Porta Pro Ksc75 Kph40 Kph30i Headphone Headset Earpad Sponge Cushion Replacement Foam Pad Covers (Great Over Ear Pads) Koss KPH40 Utility On-Ear Headphones, Detachable Interchangeable Cord System, Ultra Lightweight Design (Stealth Black) Koss had never been very good about advertising their lifetime warranty, so I bought another Pro/4AA from Radio Shack - exactly like the original after about 20 years. Still have them. They work well when listening to stuff from the computer in the wee hours. Koss PortaPro is ranked 14th while Apple Airpods is ranked 73rd. The most important reason people choseKoss PortaProis: The drivers may be small and thin, but there is good bass presence.. The mid-range may not be the most detailed, but there is a smoothness to it that gives the sound a warm and pleasing quality. Koss Porta Pro: Retro Style, Amazing Sound. Koss Porta Pro headphones offer you retro style and incredible sound quality, making them one of the best Koss headphones for audiophiles. Boasting an adjustable headband and lightweight design, they provide superior comfort while allowing you to customize the size to fit your head perfectly. Porta Pro® - On Ear Headphones. The acclaimed Koss Porta Pro® has captivated audiophiles and music enthusiasts for decades and continues to be one of the most popular headphones worldwide. Originally introduced in 1984, the Koss Porta Pro® has stood the test of time due to its impressive performance and portability. 73 votes, 17 comments. 1M subscribers in the headphones community. A place for discussion, news, reviews and DIY projects related to portable audio… ^ KPH40 (pphb) = KPH40 driver / capsules / pads on a Porta Pro headband. Porta Pro = Drop version As you can see the measured difference is minimal. The differences could be due to the observed difference in the rear cup, pads, or just positioning upon measurement rig coupler variance. Compare to solderdude's measurements. He also demonstrates The Koss Porta Pro Limited Edition brings a new paint job to a classic pair of headphones. Read on to see if these headphones are for you! Driver size: 400 mm. .

koss porta pro driver size