• Rated Output Power: 30W + 30W (8Ω, Class-A), 60W + 60W (4Ω)
• Dual monaural construction
• Esoteric’s proprietary current signal transmission, “ES-Link Analog” Input
• Bi-polar 3 Parallel Push/Pull
• 940VA Large EI-core power transformer
• Esoteric custom capacitors (10,000μF × 4/ch)
• Balanced input amplifier
• BTL / Bi-amp mode switch for dual amplifier configuration
• BTL: 120W/ch (8Ω)
 
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 signal 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 own peak resonance
 
The Esoteric S-05 stereo power amplifier is all about delivering the unique tones of music, and it borrows engineering techniques from the Grandioso M1X monoblock.
 
This amp is packed with cool features like dual monaural construction, a balanced input amplifier for noise-free signal transmission, and a bi-polar 3 parallel push/pull circuit that responds super fast to music signals. Plus, it's got a large power transformer, high-capacity custom capacitors, and an ES-Link Analog input for super high-fidelity music signal transmission.
 
This amp is compact, pure, and class A, and it's got a uniquely shaped heat sink to minimize its own peak resonance. The S-05 is a new milestone in Class A amplifiers, and it's the culmination of ESOTERIC's commitment to creating an amp that's a sincere pursuit of what an amplifier should be.
 
This Class A stereo power amplifier is all about bringing out the passionate and vivid colors of music, with a dense, low-distortion sound that's perfect for audiophiles. ESOTERIC's unique current transmission system, ES-LINK Analog, is less susceptible to noise and sends the full energy of the music to the amplifier. So, you get high fidelity and powerful drive capability with open-ended dynamism.
 
If you're looking for a serious upgrade for your music setup, the S-05 is the way to go. With this amp, you'll experience the birth of an all-new level of sound quality.