OLLO HPS S4

$1,400.00 Price Tier: High-end

5.0 (2)

1 Critic Review

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Page last updated Mar 30, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated January 14, 2026.

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HiFi Connect

$1,400.00

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Average Price: $1,400

High-end/Boutique

$100

$301+

Price Tier

In the Headphones & In-Ear Monitors category, Ollo HPS S4 is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

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Standard

High-end

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Description

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Discover a listening experience that merges precision with comfort with the Ollo HPS S4. Designed for discerning musicians and audio professionals, these headphones deliver an open-back design that provides a natural soundstage, perfect for mixing and mastering. The HPS S4 is crafted with a focus on sonic accuracy, ensuring that what you hear is as true to the original recording as possible.

The Ollo HPS S4 features high-quality 50mm dynamic drivers that offer a balanced frequency response across the spectrum, from crisp highs to deep lows. With its carefully engineered construction, these headphones minimize distortion and offer a wide, immersive soundstage. The ear pads are made from eco-friendly materials, providing both comfort during extended sessions and a sustainable choice for conscientious users.

Built with an ergonomic headband and adjustable ear cups, the HPS S4 ensures a snug fit for every user. Whether you're in the studio or at home, enjoy the breathability and comfort that allows for hours of uninterrupted focus on your music projects. The detachable cable design also adds a layer of convenience, allowing for easy replacement or upgrades.

Key Features:

Open-back design for a natural and expansive soundstage
High-quality 50mm dynamic drivers for balanced audio
Minimal distortion and wide frequency response
Eco-friendly ear pads for comfort and sustainability
Ergonomic headband and adjustable ear cups for a perfect fit
Detachable cable for convenience and easy replacement

Videos

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Machine City Audio

OLLO Audio (HPS S4 Mixing Headphone Review)

Machine City Audio

OLLO Audio HPS S4 headphones review

Porta.Fi

Ist das der ultimative Mixing Kopfhörer? | OLLO AUDIO HPS S4 Review

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Reviews

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Critic Reviews

OLLO Audio HPS S4 & S4R

soundonsound.com

OLLO Audio's HPS S4 headphones target audio engineers with their promise of a flat frequency response and user-serviceable parts. While they deliver a comfortable fit and a solid build, the mid-range lacks clarity, and the resonant frame can be annoying during use. The unique design choices, such as the difficult-to-read L/R markings, add to the frustration. The sound profile is not fully neutral, which might hinder critical mixing tasks, although they could help novice engineers better understand low-mid challenges. Overall, the S4s offer a mixed experience—promising but imperfect.

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