Esoteric S1 Grandioso Stereo Power Amp


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The origins of Esoteric’s new S1 Stereo Power Amplifier lie in an unbounded respect for the deep emotive powers of music. The Grandioso lineage that gave birth to the M1 Monoblock Amplifier now unveils a new standard bearer. Following in the footsteps of our M1 Flagship, the new S1 benefits from its knowledge and technology, allowing it to continue in the pursuit of true perfection. Experience majestic symphonies and infinite silence as sound and spirit call to each other. The very existence of the device between them seems to fade into oblivion, no longer noticed by the listener.

Without doubt, the new Esoteric S1 Stereo Amplifier defines the true spirit
of fine audio, and the realization of the ultimate in musical enjoyment.


Airy and uplifting sound of life Unleashed, high power produce

In music and the pleasant sense of unity, and listeners to forget the presence of audio. The music of beauty, the player of hot air, realism of unparalleled sound the air feeling of the Hall, unleashing the truth, it is born by the margin of the output wattage of the power amplifier. Including the powerful power supply unit, high power resulting from overwhelming amount of input. Inherit the spirit of the mono-block M1 faithfully, stereo machine S1 of esoteric highest peak, to unleash all of the sound, tells the music for uplifting the life feeling rich.


Overwhelming dynamics, 600W / 2Ω of power linearity

Impedance of the speaker, with a change of the frequency to be reproduced, have been rapidly changing. Percussion of shock and immediately after the silence, such as bass consecutive impedance is rapidly lowered, it is also not uncommon for close to a no-load situation is born. Against these drastic changes of the load situation, if there is no current supply capacity to always follow the linear, you can not be as possible to express the dynamics of the music. S1 was prepared by adding the maximum amount to the power supply unit that becomes the source of the current supply capacity, from 8Ω load 150W up to 600W at the time of 2Ω load, achieving a power linearity of the theoretical value as expected. It will faithfully reproduce the dynamics of the music at any volume level.

  • Speaker Outputs Rated output power 150 W + 150 W (8 Ω), 300 W + 300 W (4 Ω)
  • Maximum output power 600 W + 600 W (2 Ω)
  • Frequency response 5 Hz ~ 100 kHz (+1 W, -3 dB, 8 Ω)
  • Signal-to-noise ratio (S/N) 115 dB (IHF-A)
  • Total harmonic distortion 0.003 %
  • (1 kHz, 8 Ω, 150W)
  • Gain 29 dB
  • Jacks RCA jacks 1 line, XLR jacks 1 system
  • Power supply AC 230V 50Hz
  • Power consumption 430 W
  • External dimensions (W x H x D) 445 x 221.5 x 497.8 mm (including protrusions)
  • Weight 47 kg (103.6 lb)