Balanced Phonostage Preamplifier

Grandioso E1

The ESOTERIC Grandioso E1 is a flagship balanced phonostage preamplifier engineered to elevate vinyl playback through advanced analog circuit design and versatile cartridge compatibility. Featuring a unique balanced current input for MC cartridges, a dedicated optical cartridge input, and fully balanced dual-mono discrete amplification, the Grandioso E1 is designed to reveal the full character and musical expression of analog recordings.

Unique MC Balanced Current Input

Three dedicated XLR inputs receive the current generated by MC cartridges, minimizing conversion losses associated with conventional voltage-input designs and preserving the cartridge's original musical character.

Dedicated Optical Cartridge Input

A dedicated RCA input and independent amplification circuitry support optical cartridges, providing a specialized signal path tailored to their unique operating principle.

Fully Balanced Dual-Mono Discrete Amplification

Independent left and right channel circuits combine precision gain control with a variable equalizer amplifier, providing flexible cartridge matching and accurate signal reproduction.

Six Selectable EQ Curves

Choose from RIAA, Columbia, Decca, NAB, Teldec, and AES equalization curves. Three adjustable EQ parameters and four customizable presets allow precise optimization for a wide range of vinyl recordings.

Advanced Analog Playback Functions

Demagnetization, subsonic filtering, and mono playback modes provide additional flexibility for vinyl enthusiasts and collectors.

Dual-Chassis Design & Independent Power Supplies

A separate power supply and control unit isolates the main phonostage from potential electrical and mechanical interference. Four independent power supply systems further support clean, stable amplification.

ESOTERIC-HCLD & ES-LINK Analog

The high-current output stage features a 2,000 V/µs slew rate and supports XLR, RCA, and ES-LINK Analog connections for integration with compatible high-end audio components.