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Esoteric S-05 Stereo Power Amplifier

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Class-A Amplifier

Welcome to the first class.
This sleek stem, consisting of the N-05XD and the S-05 is simple, yet versatile. All you have to do is carefully choose a pair of speakers, and you will be set for life.

Witness the birth of an all-new stereo power amplifier, borrowing from the engineering techniques utilized in our flagship Grandioso M1X monoblock. The new S-05 – a class-A power amplifier thoroughly focused on delivering all of music’s unique tonal qualities from a more compact stereo configuration, embracing the philosophy of the Grandioso M1X:
“minimal circuitry – maximum output”.

Key Features

Lavish material employment, simple and straight circuit design concept borrowed from the Grandioso M1X
Finely detailed Class-A sound with super dynamics – an Esoteric’s signature tone
Dual monaural construction in all stages including current smoothing circuit for better channel separation
Esoteric’s proprietary current signal transmission, “ES-Link Analog” delivers music signals with exceptionally high power and fidelity.
High capacity bi-polar 3 parallel push/pull circuit that instantaneously responds to the music signal
940VA large EI-core power transformer that responds to dynamic current supply changes with high-speed
Large “Grandioso grade” custom capacitors on each channel (10,000μF × 4/ch)
Balanced input amplifier for stable, noise-free signal transmission
BTL / Bi-amp mode switch for dual amplifier configuration
DC Trigger for sequential power ON/OFF with the N-05XD
Esoteric’s unique isolation feet and semi-floating top panel
Unique-shaped heat sink to minimize its peak resonance

Spec description

Speaker output:

Rated output power- 30W + 30W (8Ω, Class-A)

Compatible Speaker Impedance- 4Ω to 16Ω

8Ω to 16 Ω(BTL mode)

Analog audio inputs:

ESL-A- 1 pair

XLR- 1 pair

RCA- 1 pair

General:

Power consumption- 245W (210W at no signal)

External dimensions (WxHxD)- 445 x 191 x 444m

17 1/2" x 7 1/2" x 17 1/2" (including protrusions)

Weight- 30.7kg/67 3/4lb

Audio performance

Frequency response- 5Hz to 100kHz (+0dB, -3dB, 8Ω)

S/N ratio- 102dB (IHF-A, XLR)

Total harmonic distortion- 0.007% (1kHz, 8Ω, 30W)

Compatible Speaker Impedance- 4Ω to 16Ω

8Ω to 16Ω (BTL mode)

Gain- 28.5dB

Esoteric S-05 Stereo Power Amplifier

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