Reflector Audio Big Stage 10 Pair (Radiotehnika S-90 upgrade)

🧾 Overview

The Reflector Audio Big Stage 10 is a replacement acoustic front panel set designed to upgrade vintage Radiotehnika S-90 loudspeakers. It modernizes the front geometry and acoustic loading to improve clarity, dynamics, and tonal balance while keeping the classic S-90 cabinet concept. The frequency response figures below are stated as target performance for the upgraded system.

✅ Key Features

• ✅ Purpose-built upgrade panel set for Radiotehnika S-90 speaker restoration/modding
• ✅ Target system sensitivity: 91 dB
• ✅ Target nominal impedance: 8 Ω
• ✅ Target power handling: 250 W
• ✅ Precisely defined cutout/mounting geometry for cleaner installation
• ✅ Target low-frequency reach down to 28 Hz
• ✅ Target linearity window: 50–25,000 Hz (±3 dB)

📦 What’s in the Box

• 📦 Big Stage 10 acoustic panels — 1 pair
• 🧵 Fabric grilles — 1 pair

🔄 Compatibility

Designed specifically for Radiotehnika S-90 cabinets as an upgrade/rebuild front panel solution. Suitable for DIY restoration projects and for systems where you want to modernize performance while keeping the classic S-90 form factor; works with standard speaker amplifiers once the upgraded S-90 system is properly assembled and wired.

📦✈️ Shipping & Returns

• 📦 Insured worldwide delivery
• 🔄 14-day return policy
• 🛡️ 2-year EU warranty

📝 Reviews

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⚠️ Warning

Warning: this upgrade may cause sudden nostalgia, late-night REW measurements, and an uncontrollable urge to resurrect every “S-90” you see on classifieds.

Manual: https://drive.google.com/file/d/1PVZGXzRGqedqBXLqLXWFZCj61hk7l0ez/view?usp=sharing