OLLO HPS S4 Studio Headphones
Best accurate monitoring for audio professionals.
The OLLO HPS S4 Studio Headphones offer an impressive blend of build quality and sonic performance, making them a compelling choice for mixing and studio work. Hand-built with environmentally friendly materials like walnut wood and stainless steel, these open-back headphones provide a comfortable yet secure fit. They deliver a remarkably balanced and detailed sound profile with a nearly flat frequency response, ensuring accurate audio reproduction. While they might sound a bit upfront, their excellent detail retrieval and dynamic impact make them a highly recommended tool for discerning audio professionals seeking quality without an exorbitant price tag.
$1400.00
Owner Satisfaction
4.5
/ 5
Category Rank
791
/ 6142
#791 in Headphones
Price vs Category Average
+138%
Above average
Driver Size
50
/ mm dynamic
Who it's for
- Audio engineers and producers seeking critical listening precision.
- Professionals valuing longevity, sustainability, and easy maintenance.
- Mix engineers and musicians enduring lengthy studio work.
Who should skip it
- Casual listeners or users prioritizing stylish, modern headphone designs.
- Commuters and mobile users needing compact, easy-to-drive headphones.
- Budget-conscious hobbyists or beginners exploring studio gear.
Performance breakdown
Frequency Neutrality
Nearly flat response ensures critical mixing decisions remain accurate and honest.
Build Sustainability
Walnut and stainless steel construction prioritizes both longevity and environmental responsibility.
Detail Retrieval
Sharp note outlines reveal subtle textures often missed by consumer-grade gear.
Dynamic Impact
Fast transient response delivers punchy, authoritative sound during complex studio sessions.
Serviceability
Modular design allows for easy part replacement using standard home tools.
Comfort and Fit
Secure over-ear design remains comfortable during extended, focused mixing marathons.
Key Specs
Driver Size
50mm dynamic
Frequency Response
20 Hz to 22 kHz
Impedance
32 Ohm
Earcup Material
Walnut wood, faux-leather
Headphone Type
Over-ear, open-back
Intended Use
Studio monitoring, mixing
Connectivity
Detachable cable with 2.5mm plugs to earcups, 3.5mm jack termination
Included Accessories
3.5mm to 6.35mm adapter, faux-leather pouch
Features
- Hand-built with care for the environment
- Great tonal balance with almost flat frequency response
- Good speed, impact, and slam for dynamic sound
- High level of detail retrieval
- Good transparency and low distortion levels
- Sharp outline of notes and good texture
- Attractive price point for studio quality
- Replaceable parts with home tools
What customers say
Customers consistently praise these studio headphones for their exceptional sound accuracy and robust build quality. Many users highlight the precise audio reproduction, making them ideal for critical listening and mixing tasks. The durable construction and comfortable fit are frequently mentioned, ensuring reliability and extended wear during long studio sessions. While some note their analytical sound profile, the overall consensus points to a high quality, dependable tool for audio professionals seeking clarity and longevity.
Know before you buy
Yes, the open-back design and lightweight construction make them comfortable for extended wear. However, because they are open-back, they will not provide isolation from external noise, so they are best suited for quiet studio environments.
The HPS S4 is designed with a nearly flat frequency response, providing a neutral and accurate representation of your audio. This makes them highly reliable for critical mixing and monitoring tasks where you need to hear the source material without artificial coloration.
Yes, OLLO designed the S4 with modularity in mind. You can replace individual components using standard home tools, which significantly extends the lifespan of the headphones compared to glued-together alternatives.
With an impedance of 32 Ohms, these headphones are relatively easy to drive. You can achieve good results with most standard audio interfaces or high-quality laptop outputs, though a dedicated amplifier can still help maximize their dynamic performance.
You can expect a detailed, transparent sound with excellent note definition and dynamic impact. They lean toward an 'upfront' presentation, which helps in identifying subtle textures and transients during the mixing process.
Yes, the headphones feature a detachable cable system that connects to the earcups via 2.5mm plugs. This allows for easy cable replacement or customization if needed.
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