Esoteric Grandioso S1X Stereo Power Amplifier

All of where the music is opened up and depicted fully – Grandioso S1X. With the birth of the Grandioso M1X, our flagship monoblock power amplifier, the ESOTERIC amplifier design platform has been completely revamped. The Grandioso S1 has now been reborn as the Grandioso S1X, the new flagship in a completely different class of Class-A stereo power amplifiers.

The monoblock M1X embodies ESOTERIC's idea of the ideal amplifier. The dynamic sound of the M1X, produced by a completely redesigned drive stage and a powerful power supply unit that incorporates an enormous amount of material, has captivated audiophiles around the world. The S1X, a Class-A stereo model, beautifully follows the M1X's signature sound of "a sense of dynamism that unleashes the full power of music" and "a sense of grand scale." In exchange for its high power of 2,400W/1 ohm, the S1X offers a half the space form factor and the transparent and detailed expressiveness that only Class-A can deliver. Here, is a milestone model that realises ESOTERIC's ideals of the Class-A stereo amplifier.

Features

Newly designed drive stage with 5-parallel push-pull drive by high-capacity bipolar transistors

Pure Class-A operating range of 50W / 8 ohm provides a dense musical expression that combines precision and dynamism

“ES-LINK Analog” transmission pushes the limits of fidelity between Pre/Power amplifiers

Superior power linearity for unparalleled dynamics (50W/8Ω to 100W/4Ω)

Large-capacity toroidal-core power transformer that is extremely responsive to dynamic current supply changes

3-transformer configuration with independent power transformers for the front stage, drive stage, and control system

Channel independent high-capacity Grandioso Custom Block Capacitors (10,000μF × 6/ch)

Pure copper busbars, ultra-thick wiring, and shortest pattern connections significantly reduce internal impedance

Balanced audio connections in each circuit block to ensure low noise

High quality parts such as FET switch for input switching, discrete amplifier module IDM-01, etc.

Stereo mode and bi-amp mode for further system enhancement by combining two units.

Enlarged chassis to M1X size with newly designed Class-A construction

Chassis design optimizes internal vibration control by thoroughly pursuing a balance between "rigidity" and "flexibility"

Dual honeycomb grille and semi-floating top panel for heat exhaust and sound release

Pinpoint isolation foot with unique structure to reduce mechanical stress

Unique wave-shaped heat sink to reduce peak resonance

DC Trigger input for Power ON/OFF

Specifications

Output

Rated Output 50W + 50W (8Ω Class-A)

100W + 100W (4Ω)

Compatible Speaker Impedance 4Ω to 16Ω

Analog Audio Inputs

ES-Link Analog × 1 pair

XLR × 1 pair

RCA × 1 pair

General

Power

AC 120V, 60Hz

AC 220-240V, 50Hz

Power Consumption 310W (270W at no signal)

Overall Dimensions (W×H×D) 491 × 221 × 536mm (including protrusion)

Weight 48kg

Included Accessories Power cord × 1

Delt pad × 4

Owner's manual × 1

Audio performance

Freqeuncy Response 5Hz to 100kHz (+0dB, –3dB, 8Ω)

S/N Ratio 109dB (IHF-A, XLR)

Total Harmonic Distortion 0.006% (1kHz, 8Ω, 50W)

Gain 28.5dB (XLR)

34.5dB (RCA)