POWERFUL FLAT RESPONSE

by equal loudness contours

based on IEC 61672:2003 standard
achieved using acoustics and audio engineering, not a single line of code. Just pure analog headphones.

S4R Recording Headphones

Speaker size: 50mm closed back design
Frequency range: 20-22kHz balanced response
SPL: 114dB hearing threshold
Impedance: 32ohm
Ear cups outer diameter: 86mm
Ear cups inner diameter: 70mm
Ear cups material: Walnut
Headband material: Stainless steel and artificial leather
Ear pads size: 90mm
Ear pads material: Acoustic foam, extra elasticity artificial leather
Cable termination: Detachable Y cable -  2.5mm mini jack
Connector: 3.5mm jack with adapter to 6.3mm jack
Servicable: Every part of HPS S4 is replacable with home tools 

S4 Mixing Headphones

Speaker size: 50mm open back design
Frequency range: 20-22kHz flat response design
SPL: 112dB hearing threshold
Impedance: 32ohm
Ear cups outer diameter: 86mm
Ear cups inner diameter: 70mm
Ear cups material: Walnut
Headband material: Stainless steel and Italian leather
Ear pads size: 90mm
Ear pads material: Acoustic foam, extra elasticity artificial leather
Cable termination: Detachable Y 2.5mm mini jack
Connector: 3.5mm jack with adapter to 6.3mm jack
Servicable: Every part of HPS S4 is replacable with home tools 
FLAT OUT OF THE BOX
no correction software needed, no DA conversion; just pure analog headphones.

TRUE COMFORT

Achieved by large over-the-ear earpads and lightweight construction

MONEY BACK GUARANTEE

If you don't like them you can return them in 30 days after delivery

TRUSTED AND TESTED BY MANY

world class engineers

CHRIS BROWN

Muse, Radiohead, Bon Jovi, Spice Girls, Ronan Keating, INXS,...

"With their elegant design and clear, neutral sound, HPS S4 Studio headphones are a welcome addition to my monitoring options."

ADAM MOSELEY

U2, Rush, Beck, Genesis, Nikka Costa, Roxette, East 17, The Cure,...

"My mixes are very immersive, spacious and full of emotion. The HPS S4 respect all of the depth, width, air, tight bass, space and detail that I work so hard to create in a mix. Excellent reference headphones for mixing and mastering. Switching between the headphones and my speakers is effortless. And they are really light in weight and comfortable for long periods of use .... and they look cool too !
Job well done!"

GARY NOBLE

Amy Winehouse, Jessie J, James Arthur, Joss Stone,...

“The OLLO Audio PLAY2ME system is my favorite headphone monitoring system. The headphones sound amazing and with the silent subwoofer I can feel every bit of the low end without blasting it on the mains. I use it on every mix.”

Made for demanding producers

HPS S4 Studio headphones

Neutral and brutally honest. A tool you can trust your mixes with.
€349.00
I WANT ONE NOW
Made for recording artists

HPS S4R Recording headphones

Versatile, balanced and strong noise cancelling design for recording sessions
€349.00
I WANT ONE NOW

HPS S4 B STOCK LIMITED QTY

We have a few B Stock S4 available from the last batch production. They are sonically exactly the same as A stock but with minor scratches on back plates or headband. Some are build from wood leftovers. As mentioned sonically they perform exactly the same, cosmetics are not perfect.

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