Michi Prestige S430 Stereo Power Amplifier
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About Michi Prestige S430 Stereo Power Amplifier
Available for preorder now! Expected to ship September 2026.
Key Features
- 2 x 390 Watts of robust Class AB power (4 ohms)
- Oversized custom-engineered, in-house manufactured toroidal transformer
- High-efficiency bulk storage capacitors
- Balanced XLR inputs
- Includes remote control
The Michi Prestige S430 Stereo Power Amplifier delivers authority, control, and musical refinement expected from the Michi ecosystem. Rated at 230 watts per channel into 8 ohms and 390 watts per channel into 4 ohms, the S430 provides the power and dynamic headroom required to drive high-performance loudspeakers with confidence.
At its heart is a substantial high-current linear power supply built around an oversized, in-house-manufactured toroidal transformer and large reservoir capacitor bank. This foundation supports stable current delivery, firm low-frequency control, expansive soundstaging, and fast, effortless transient response, allowing music to unfold with scale, impact, and natural detail.
Balanced XLR and RCA inputs provide flexible, low-noise connection to premium preamplifiers and source systems, while dual precision 5-way speaker binding posts support secure cable connection and bi-wire speaker configurations. 12V trigger control allows clean integration into complete performance audio systems, including installations built around matching Michi components.
The S430’s elegant aluminum chassis, substantial construction, and refined industrial design reflect the engineering discipline beneath the surface. A front-panel TFT display with selectable VU meter and spectrum display views adds visual engagement without distraction. Built as both a precision power amplifier and a natural partner within the
Michi Prestige system, the S430 delivers power with poise, refinement, and real musical connection.
Specifications
| Power Output (FTC) | 250 watts / channel (8 ohms) |
| Continuous Power Output (Non FTC) | 230 watts / channel (8 ohms) |
| Maximum Power Output (Non FTC) | 390 watts / channel (4 ohms) |
| Total Harmonic Distortion | < 0.03% |
| Intermodulation Distortion (60 Hz : 7kHz, 4:1) | < 0.03% |
| Frequency Response | 10 Hz - 100k Hz (0 ± 0.4 dB) |
| Damping Factor (1kHz, 8 ohms) | 350 |
| Speaker Impedance | 4 ohms minimum |
| Input Sensitivity / Impedance - Unbalanced (RCA) | 2V / 12k Ohms |
| Input Sensitivity / Impedance - Balanced (XLR) | 4 V / 200k Ohms |
| Gain - Unbalanced (RCA) | 26.5 dB |
| Gain - Balanced (XLR) | 20.5 dB |
| Signal to Noise Ratio (IHF “A” weighting) | > 115 dB |
| Crosstalk / Separation | > 70 dB |
| General | |
| Power Requirements - Europe | 230V, 50Hz |
| Power Requirements - USA | 120V, 60Hz |
| Power Consumption | 550 watts |
| Standby Power Consumption | < 0.5 watts |
| BTU (4 ohms, 1/8 power) | 1513 BTU/h |
| Dimensions (W x H x D) | 431 x 148 x 405 mm / 17 x 6 x 16 ins |
| Front Panel Height | 131 mm, 5 1/4 ins |
| Weight (net) | 17.5 kg, 38.6 lb |
