Michi S5 Stereo Power Amplifier Key Features:
- 500 watts per channel into 8 ohms – Delivers powerful, distortion-free class AB performance for a wide range of loudspeakers
- Dual mono architecture – Ensures isolated, independent channel operation for enhanced imaging and soundstage clarity
- Twin oversized toroidal transformers – Provides massive current reserves for deep, impactful bass and dynamic headroom
- In-house transformer manufacturing – Guarantees tight quality control and optimized performance specific to the amplifier's design
- Elegant industrial design – Combines high-end aesthetics with robust build quality for visual and functional appeal in any system
Product Description:
The Michi S5 Stereo Power Amplifier stands out as a premier linear amplifier, delivering 500 watts of Class AB power into 8 ohms and over 800 watts into 4 ohms. Its dual monoblock design features two custom-engineered, oversized 2,200 Volt-Amp toroidal transformers, manufactured in-house and housed in epoxy-filled enclosures to eliminate noise and vibration. A set of four patented British bulk storage capacitors totaling 188,000µF provides powerful, controlled bass energy while maintaining precise detail. This is paired with 32 high-current output transistors that ensure impeccable timing and rhythm, even under demanding speaker loads.
The S5 exemplifies meticulous engineering from concept through production, reflecting countless hours of design refinement, component evaluation, and sonic tuning. It delivers exceptional accuracy while fulfilling Michi’s commitment to producing audio equipment worthy of the brand’s reputation.

Completing the package is an elegant industrial design featuring a front panel color display and Michi’s exclusive high-current, 5-way rhodium-plated binding posts. The amplifier includes a remote control for easy setup and operation, with RS232 and Ethernet connectivity compatible with all major control systems.
Specifications:
Front Panel Height
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220mm (8.625")
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Power Requirements
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120V, 60Hz
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Power Consumption
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1200W
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Standby Power Consumption
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Normal: <0.5W
Network Wakeup: <2W
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BTU (4 Ω, 1/8th Power)
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3450 BTU/h
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Continuous Power Output
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500 W/CH (8Ω)
800 W/CH (4Ω)
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Total Harmonic Distortion
|
<0.008%
|
Frequency Response
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20Hz - 20kHz (+0dB, -0.15dB)
10Hz - 100kHz (+0dB, -0.4dB)
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Signal to Noise Ratio (IHF “A” weighted)
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120dB
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Gain
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Unbalance: 28dB
Balance: 24dB
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Intermodulation Distortion (60Hz:7kHz, 4:1)
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<0.03%
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Damping Factor
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350
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Speaker Impedance
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4Ω minimum
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Input Sensitivity
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Unbalance: 2.6V
Balance: 4.2V
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Input Impedance
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Unbalance: 12.5kΩ
Balance: 100kΩ
|
Crosstalk / Separation
|
>65dB
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Dimensions and Weight:
Overall - 19 x 9.375 x 18.25” (W x H x D)
Product Weight - 132.1 lbs net