OLLO Audio S4R Recording Headphones (Closed Back)

Full Description

OLLO Audio, passion, and precision

OLLO Audio are a company dedicated to designing high quality studio headphones. Their development team is comprised of passionate musicians and sound engineers, creating the best hardware for studio applications, from experience. The OLLO Audio S4R Closed Back Recording Headphones are renowned among those who use them for their exceptional versatility. The S4R headphones are designed with mixing, tracking, and mastering in mind. They provide an accurate, detailed, and flat sound profile for the user, and they effectively isolate outside sounds as well as containing inside sounds from the headphone’s drivers. Closed-back headphones aren’t normally used for mixing and mastering, however; the S4R headphones are widely regarded as being up to the task. While these headphones are designed for professional use, there is nothing to stop you from using them to enjoy your favourite music from your digital or analog media devices. The S4R headphones would be well suited to recreational use and HiFi listening.

High quality acoustics, ultimate comfort

To achieve such an accurate sonic picture, the S4R headphones feature two dynamic neodymium speakers with handpicked left and right-matched 50mm transducers that have immaculate frequency separation capabilities. The transducers are made from a PET 25u membrane with a two layered coil Requiring only 32 Ohms, the relatively low impedance of the S4R means it is compatible with most battery powered small consumer equipment and other everyday devices such as HiFi stereo amps. The sound Isolation and frequency separation characteristics of the S4R are attributed to the Sound Seal Acoustics ™ that separates the front and back of the earcup and the replaceable earcups made from isolating acoustic foam fits ergonomically around the ears and helps to reduce bleed from the headphones. The ultra-elastic poly leather and soft velour outer layer make the S4R earcups comfortable and easy to wear for extended periods of time.

Solid build, adaptable design

Designed, assembled, and manufactured in Slovenia, the S4R headphones are built to an exceptional standard. The headband is made from powder coated spring steel and has a self-adjusting artificial leather comfort strap that keeps the headphones at a comfortable level. Plugged in vial a detachable braided silicone cable with an OFC core that prevents signal distortion. The cable is colour coded with black for left and red for right, but both cable ends can fit in the opposite embedded PCB connector and the end of the cable features a 3.5/6.3mm TRS jack adaptor that can be swithced to suit the equipment you’re monitoring. OLLO Audio also strive to make their products as sustainable and upgradeable as possible. Most OLLO headphone components are available as spare parts and upgrade kits available for older versions of their headphones; you can be sure that even with the long shelf life of the S4R, you will be able to maintain them and retain the sonic performance.

Features

• Reference-grade audio fidelity ideal for mixing and mastering applications using only headphones
• Closed-back design provides complete isolation from outside the headphones and from within
• Hand-picked and matched left/right transducers deliver the utmost sonic accuracy and instrument separation
• 50mm, PET25u membrane, two-layered coil transducer dynamic Neodymium speaker with 109dB SPL
• 30-ohm output allows them to work with battery powered consumer equipment and smart devices
• Sound Seal Acoustics ™ separate the back and front of the earcups to provide a transient response and frequency definition
• Flat frequency response provides the base for accurate sound scaping and fine tuning
• Adjustable steel headband with artificial leather strap 360-degree rotating American Walnut earcups
• Detachable braided silicone cable with OFC core that minimises signal distortion
• Cable has colour-labelled L/R jacks and a screw-on adapter from 3.5mm to 6.3mm jacks

Specifications

• Frequency response: Variation in frequency response in band from 20Hz to 20kHz 10,0dB SPL
• SPL/sensitivity: 111dB / 1vrms@1Khz 30ohm
• Impedance: 32ohm, smart devices ready
• Ear cups dimensions: Outer diameter: 90 mm
• Ear cups material: American walnut
• Headband: Stainless steel and artificial leather
• Earpads size:
  • Outer diameter: 90 mm
  • Inner diameter: 55 mm
  • Depth: 20mm
• Earpads material: Acoustic foam, extra elasticity poly leather and velour
• Connector: 3.5mm jack with an adapter to 6.3mm jack
• Magnet type: Neodymium
• Transducer type: Dynamic
• Coil: 2 layered
• Membrane material: PET 25u
• Matched speakers: Handpicked pairs
• Weight: 350 g
• Warranty: 5-year limited manufacturer warranty
• Product code: OLL-S4R