
(Open Box) OLLO Audio - S4R Closed Back Recording Headphones
(Open Box) OLLO Audio - S4R Closed Back Recording Headphones, Sound Seal Acoustics, 32ohm Impedance
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Professional Recording Headphones
OLLO Audio - S4R Version 1.1
(Open Box)

Please note: This is an open box product, packaging has been opened and demonstrated to a customer, but product is in as-new condition.
Hear your performance as it is, no sugar coating"Your recording headphones are the first touch with your performance. All the details must be preserved and nothing should be exaggerated. A well tuned recording headphones will have no mercy on you and push you to your absolute best. Meet the new S4R recording headphones made for the most demanding audio creators."
32 ΩImpedance
20Hz - 20kHzFrequency Response
111 dBSPL
at a glance
• Professional Closed-back Studio Headphones
• Connector type: dual 2.5mm TRS and 3.5mm TRS
• Cable length - 2m
• 5 year warranty
Your Sound. As It Should Be.

sound seal
acousticsWith 100% separation of front and back earcup cavity, these headphones deliver uncompromised frequency and transient response with minimal sound leakage. No more click bleed in to your recordings.

stainless steel, nautical leather,
velour, aluminum & woodStudio environment can be very demanding to headphones' wear and tear. Cable tripping, accidental drops and plugging them into wrong outputs demands extreme built quality. Ollo's 5 year limited warranty program is a testament of dedication to high quality.

Wear them for hours straight
no discomfortSelf-adjusting strap with weight distribution enables long sessions without headaches caused by single pressure points. The earpads are soft velour-pleather hybrid and disperse heat well. Sweaty ears are a thing of the past.
What The Pro's Say!

Markus Mann"Absolutely LOVE the S4R 2021’s! A major leap forward from the first generation S4 models. More precise, well balanced, and extremely comfortable to work with for long hours. These are a game changer around the studio for sure."

BERNHARD SCHMOLMÜLLER"With these headphones, we had no leakage at all. That was brilliant. And surprisingly they're also suitable for mixing actually, which I thought is actually impossible with closed-back phones."

DRIES GEUSENS"My recordings sound better and more alive. Because of the closed construction I can use a larger dynamic range and the smallest details and nuances are perfectly audible. The S4R has become indispensable in my studio."
OLLO Life with Rok Gulič
WHAT DEFINES PERFECT RECORDING HEADPHONES?'In this episode, we take a look at the S4R 2018 model, make a list of features that were well accepted by the community, and also the list that we are even more interested in - the list of things we have to change.'

The Tech Spec
Features | Specification | Frequency response | Variation in frequency response in band from 20Hz to 20kHz ~10,0dB SPL |
---|---|
SPL/sensitivity | 111dB / [email protected] 30ohm |
Impedance | 32ohm, smart devices ready |
Ear cups dimensions | Outer diameter: 90 mm |
Ear cups material | American walnut |
Headband material | Stainless steel and nautical artificial leather |
Earpads size | Outer diameter: 90 mm Inner diameter: 55mm Depth: 20mm |
Earpads material | Acoustic foam, extra elasticity poly leather and velour |
Cable termination | Detachable 2 meters long Y 2.5mm mini jack |
Connector | 3.5mm jack with an adapter to 6.3mm jack |
Weight | 382g |
Magnet type | Neodymium |
Transducer type | Dynamic |
Coil | 2 layered |
Membrane material | PET 25u |
Matched speakers | Handpicked pairs |
Warranty | 5-year limited warranty |