- get that iconic Valvesound, that shaped music history in your studio!

IGS Audio 825 EQ – The legendary tube equalizer redefined

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The IGS Audio 825 EQ follows in the footsteps of the legendary E.A.R. Yoshino 825 EQ – one of the most iconic studio equalizers in the world of professional audio.

In this modern reinterpretation, IGS Audio combines the sonic aesthetics of classic tube equalizers with timeless craftsmanship and uncompromising precision.

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The legend continues

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The original E.A.R. 825 Equalizer, developed by Esoteric Audio Research under the direction of the renowned engineer Tim de Paravicini, remains a benchmark for musical tone shaping to this day.

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It was used by artists and producers such as Pink Floyd, Ringo Starr, Kate Bush, Gary Barlow, and Bob Ludwig – and has thus written music history.

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With the IGS Audio 825 EQ, this tradition lives on – authentic, modern, and accessible – yet available at an affordable price.

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The original unit has achieved collector status, often reaching prices of up to €20,000.

This makes the tube equalizer unattainable for many audio engineers who still desire that unique sonic signature for their own work.

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Cult sound – redefined

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The 825 EQ by IGS Audio stays true to the original design and preserves its sonic character down to the smallest detail.

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It delivers a silky, warm, and natural sound that enriches every signal musically – whether during recording, mixing, or mastering.

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Its tube circuitry adds a subtle saturation that enhances transparency, depth, and harmonic richness – exactly what made the classic E.A.R. sound so desirable.

Professional sound shaping – for every studio

Thanks to its balanced engineering, the IGS Audio 825 EQ is an indispensable tool for professional studios as well as for audiophile producers and mastering engineers.

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It offers the sonic quality of a true high-end equalizer – at a price that makes it accessible even for smaller studios.

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Its musical and silky character makes it essential across all musical genres – from acoustic jazz and pop to electronic productions.

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Whether during the recording of instruments and vocals, the post-processing of voices, bass, and drums, in mixing, or the final touch in mastering – the IGS 825 EQ provides that special something many engineers miss in the digital domain.

Depending on your application, you can choose the ±12 dB version for more pronounced tone shaping or the ±6 dB version for fine adjustments during mixing and mastering.

Both versions feature ELMA switches for smooth operation and easy recall – and their satisfying tactile click makes every adjustment a pleasure.

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Highlights

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• Inspired by the legendary E.A.R. Yoshino 825 EQ

• Tube-based signal path for harmonic warmth

• Ideal for recording, mixing, and mastering

• Musical, transparent, and silky sound character

• Premium build quality – Handmade by IGS Audio in Poland

• Budget-friendly compared to the original vintage unit

• Available in ±6 dB or ±12 dB versions

• External power supply for optimal performance

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Conclusion

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The IGS Audio 825 EQ is more than just an equalizer – it’s a tribute to the sound of classic masterpieces and a silky-smooth tool for modern music production.

With its balance of analog warmth and precise control, it deserves a place in every studio that values true sonic culture.

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✅ Handmade in Poland
✅ ±6 dB or ±12 dB version available
✅ External power supply included