HPS S4 Studio headphones (mixing)



Speaker size: 50mm
Acoustics design: Open-back
Frequency range: 20-22kHz 
SPL: 112dB hearing threshold @ 1kHz
Impedance: 32ohm, smart devices ready
Ear cups outer diameter: 90mm
Ear cups material: American walnut
Headband material: Stainless steel and arificial leather
Ear pads size: 90mm
Ear pads material: Acoustic foam
Cable termination: detachable 2 meters long Y 2.5mm mini jack
Connector: 3.5mm jack with an adapter to 6.3mm jack
Serviceable: Every part of HPS S4 is replaceable with home tools (spare parts here


HPS S4 studio headphones were engineered to have a balanced frequency response, based on ISO standard 226:2003. That is the latest independent ISO equal-loudness standard. The shape of the earcups was designed to be fully rounded. This design makes all vibrations bounce and cancel in linear style, so it is possible to shape the frequency response with acoustic treatment and stay within ISO tolerance. Total tolerance is +/- ~4.2dB.

S4 have no electronics and no DSP processing. They are designed to be READY FOR MIXING - OUT OF THE BOX.

The pure analog signal from your amplifier to speakers and extensive development of acoustics properties in the S4, delivers a great mixing and mastering tool. The speaker was carefully selected and tested to fit the promise of balanced response at low impedance. This is important if you wish to drive them with only a laptop or smartphone output signal.

The great sound experience was our primary focus but comfort and premium materials were not left to chance. Earpads are 90mm outer and 50mm inner diameter. That creates a good seal and allowes just enough room for pina to rest comfortably inside. 

A modern audio producer is no longer tied to a mixing console and control room. Freelancing jobs require travel and flexibility. This makes mixing on headphones a necessity and a reality for so many. The S4 is our answer to such scenarios and lifestyle.

You can test it out and if you don't like it, you can return it and get a refund of your purchase.

B STOCK - Headphones with minor cosmetics damages. Sonically same as A series are sometimes available. (currently NOT available)

SHIPPING NOTE: Currently we ship S4 orders in max 48 hours. Delivery time depends on the carrier services you choose. Terms are here.


 99,00 EUR for the first month

Then 15,9 EUR for each month, for 12 instalments





DJ Linus (Germany): "Best headphones I ever used! If you compare the price and the value there is no second choice!"

Anne Alma (Netherlands): "Very nice open and warm sound without hyping"

Ber Quinn (Ireland): "The headphones are detailed and precise and give a good sense of the air in recordings. I love the design and the build and they're very comfortable to wear." 

Sam Berdah (France): "Those headphones quickly became references for me. They're are always with me and allow me to save precious time when I’m not at the studio." 

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