IO vs Roksan Caspian M
The Caspian M's power @ 8ω is 70W against the IO's 30W, its signal-to-noise 116.7 dB against 99 dB, and its damping factor >100 against >200. Both share class (AB).
AI-generated product photo — not official manufacturer imagery.
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Rega io is a class A/B integrated amplifier that uses the same amplifier stage and phono preamp design as Rega's award-winning Brio amplifier, but at a more accessible price. Handmade in England, the io is designed for simplicity and ease of setup, making it ideal for vinyl enthusiasts and those building their first high-fidelity system. It features a high-specification moving magnet phono stage for direct turntable connection, two line-level inputs for additional sources like CD players or streamers, and a dedicated headphone output. The compact footprint (smaller than a sheet of A4 paper) makes it suitable for any room size, while its pure analog design focuses on musical performance without digital connectivity or unnecessary features. The io integrates seamlessly into any home audio system and is commonly paired with Rega's Planar 1 turntable and Kyte speakers as part of the System One all-in-one package.
Amplification power output and characteristics
Analog signal output specifications
Phono stage specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the IO in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Caspian M's power @ 8ω is 70W against the IO's 30W, its signal-to-noise 116.7 dB against 99 dB, and its damping factor >100 against >200. Both share class (AB).
The PM6007's power @ 8ω is 45W against the IO's 30W, its signal-to-noise 83 dB against 99 dB, its damping factor >100 against >200, and its output impedance 32Ω against 109Ω.
Both turn up in the same documented systems.
The A10MKII's power @ 8ω is 50W against the IO's 30W, its signal-to-noise 90 dB against 99 dB, and its damping factor >100 against >200. Both share class (AB).
Both turn up in the same documented systems.
The A8's signal-to-noise is 90 dB against the IO's 99 dB, its damping factor 80 against >200, and its output impedance 0Ω against 109Ω. Both share power @ 8ω (30W).
Marantz PM8003
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