Description
Professional 60W Audiophile Mono Power Amplifier Module
The STK4038XI is a premium thick-film hybrid integrated circuit from Sanyo's high-precision "XI" series. Delivering a minimum of 60 Watts of continuous power, this module is engineered for audiophile-grade sound systems. By utilizing an internal current mirror and cascode circuit, the STK4038XI achieves an ultra-low Total Harmonic Distortion (THD) of just 0.008%.
This mono module is a critical replacement part for high-end center channel speakers, active studio monitors, and mono-block power amplifiers where sonic transparency and a silent noise floor are paramount.
Key Technical Features:
- Continuous Power Output: 60W Minimum (at 8Ω, 20Hz to 20kHz, THD = 0.008%).
- Ultra-Low Distortion: 0.008% THD provides studio-quality, transparent audio reproduction.
- Internal Architecture: Pure complementary circuit with cascode stages for superior linearity.
- Frequency Response: 20Hz to 50kHz (+0, -3dB).
- Operating Voltage: Recommended supply of ±40V (Absolute Maximum ±58V).
- Pin Compatibility: Pin-compatible with the STK4036XI through STK4044XI series for flexible power scaling.
Installation & Thermal Care:
The STK4038XI must be securely mounted to a flat, clean heatsink using high-quality thermal grease. Because of its precision internal bonding, operating the module without a heatsink—even for a brief functional test—will cause immediate and permanent damage. Verify that your power supply rails are symmetrical and ideally near ±40V for optimal performance.
Technician's Note: Before installing a new module, always inspect the output emitter resistors and protection circuitry. A failure in the original chip is often caused by external shorts that must be resolved to protect your new replacement.