Description

Update: December 2025 I have a set of Beige Pro4/AA’s available! These are stunning in beige and brushed stainless!

I reckon these are the ultimate DJ headphones! For sound, functionality and style. They are vintage 1970’s Koss model Pro/4AA. They have been meticulously restored, updated with new drivers, and given new features meant specifically for DJs.

DJ Certified Scruffian seen here crushing it!

See my blog post here for complete details of their construction, sound testing and measurements.

Koss Pro/4AA Headphones resto-modded into great DJ Headphones!

• New dynamic headphone driver for modern sound; 40mm Peerless/Tymphany. The driver is mounted on a custom angled bezel that floats the driver directly over the ear without actually touching it.
• Incredible sound isolation makes cueing and mixing easier. You don’t need to have the headphones as loud to hear what you are doing.
• Superb sound! Warm, spacious and clear. The bass kicks. Subjectively, they have a sort of “studio-monitor headphone” type sound, similar to industry standards like the Sony MDR-V7506 or Audio Technica ATH-M50x. There are no missing frequency bands, and they sound so good you can mix completely in headphones, and hear how your EQs are affecting the tonal balance. They are on the bassy side, and this is intentional for DJ headphones, where you need strong bass for beat-matching.
• Stylish AF! So beige! So chrome! So 70’s! (Yes, style counts for some DJ’s, including myself, and that’s OK. It is entertainment.)
• Locking headband adjustment for distraction-free DJ’ing. Set it and forget it.
• Beautiful 8-core, ultra-flexible braided headphone wire.
• Shock-cord strain relief. (It’s a straight wire so this provides some accident protection.)
• Holder for the 1/4″ to 3.5mm adapter.
• Durable. The frame is made from thick stainless spring-steel. The Koss Pro/4AA is a famously indestructible headphone; One of the reasons they were an audio-production staple for decades.
• Comfortable. Super thick memory-foam earpads. They grip your head quite firmly, but they are soft, and they do not press on your outer ear at all.
• Heavy! 600 grams. I actually like this sensation, they grip tightly and are not going anywhere when you bop your head.
• Lifetime earpad replacement for $30. (I have a stash of earpads for the future.)
• $100 flat-rate repair warranty. No matter what’s wrong. They are 100% serviceable and I have lots of spare parts.

Photos are of the actual set of headphones for sale.

Yes they are expensive! They are many hours of meticulous work. They are boutique items and I don’t intend to sell a lot of them.