MICHI S430 Prestige Stereo Power Amplifier

S430 Bring your loudspeakers to life with greater authority, control, and scale. The Michi Prestige S430 Stereo Power Amplifier delivers powerful Class AB performance, high-current drive, and precision engineering for accurate musical reproduction. The Michi Prestige S430 Stereo Power Amplifier delivers authority, composure, and musical realism. Rated at 390 watts per channel into 4 ohms (230 watts into 8 ohms), the S430 provides the dynamic headroom needed to reveal greater scale and impact from high-performance loudspeakers. An oversized, in-house-manufactured toroidal transformer and large reservoir capacitor bank support stable current delivery for dynamic bass impact to demanding speaker loads. Balanced XLR and RCA inputs and dual 5-way speaker binding posts allow the S430 to integrate easily into performance audio systems. The S430’s elegant aluminum chassis and front-panel display with selectable meter views deliver a refined visual presence, reinforcing the amplifier’s role as the centerpiece of the listening experience. Dimensions (W × H × D) 431 × 148 × 405 mm 17″ ×5 5 /6″ × 16″ Front Panel Height 131 mm (5 1/6″) Power Requirements 120 V, 60 Hz Power Consumption 550 W Standby Power Consumption < 0.5 W Net Weight 17.5 kg (38.6 lbs.) BTU Rating (4 Ω, 1/8th power) 1513 BTU/h Power Output (FTC) 250 W/Ch (8 Ω) Continuous Power Output (Non FTC) 230 W/Ch (8 Ω) Maximum Power Output (Non FTC) 390 W/Ch (4 Ω)  Total Harmonic Distortion (THD) < 0.03 %  Frequency Response 10 Hz – 100 kHz (0±0.4 dB)  S/N Ratio (IHF “A” Weighted) > 115 dB Intermodulation Distortion (60 Hz:7 kHz, 4:1) < 0.03 % Damping Factor (1 kHz, 8 ohms) 350 Speaker Impedance 4 ohms minimum  Gain Unbalanced： 26.5 dB Balanced： 20.5 dB Input Sensitivity / Impedance Unbalanced： 2 V / 12 kohms Balanced： 4 V/ 200 kohms Crosstalk/Separation > 70 dB