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About the Grandioso E1
The Esoteric Grandioso E1 is a flagship phono stage preamplifier designed as part of Esoteric's Grandioso series for high-end vinyl playback. It features a revolutionary dual-chassis configuration with the power supply and control sections separated from the main phonostage chassis to minimize vibration and noise during audio signal amplification. The E1 is equipped with proprietary balanced current inputs (XLR × 3) that directly receive the current generated by MC cartridge coils, minimizing signal loss compared to conventional voltage input systems. It also includes traditional voltage inputs (RCA × 1) for MM and higher-output MC cartridges, plus a dedicated optical input for optical cartridges. The preamp features fully balanced and fully discrete variable equalizer amplifier circuits with support for multiple EQ curve presets including RIAA, Columbia, Decca, NAB, Teldec, and AES, plus mono playback mode and customizable EQ parameters. The output stage incorporates Esoteric's HCLD (High Current Line Driver) technology with a 2,000V/μs slew rate for fast, pure signal transmission.
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