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Audio Research I/70 – Tube Integrated Amplifier with Expandable Functionality - HiFi.Fan

Audio Research I/70 – Tube Integrated Amplifier with Expandable Functionality

By HiFi Editorial25 February 2026

Audio Research I/70 – Tube Integrated Amplifier with Expandable Functionality

Key Highlights

Audio Research introduces the I/70 integrated amplifier, featuring 70W per channel output via four 6550 vacuum tubes.
Expandable functionality includes optional modules for digital sources (USB-B, S/PDIF, Bluetooth) and MM/MC vinyl record players.
Automatic bias system ensures optimal tube operation, extending lifespan and maintaining consistent audio performance.

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HiFi Weekly Digest

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