Description
Restore ultimate high-power output and chest-thumping bass dynamics to your flagship audio gear with the STK401-140. Manufactured by Sanyo, this heavy-duty thick-film hybrid integrated circuit acts as a dual-channel (stereo) Class-AB audio frequency power amplifier stage, delivering a commanding minimum of 120W RMS per channel natively into low-impedance speaker setups.
Key Features:
- High-Power Stereo Output: Rated at 120W + 120W minimum (up to 140W maximum dynamic output), offering immense driving headroom for larger floor-standing stereo towers.
- Low Impedance Stability: Explicitly engineered to remain stable under demanding 6Ω and 3Ω speaker loads, perfectly matching modern high-end consumer speaker architectures.
- Optimized Block Pin Arrangement: Pin assignments are intelligently partitioned into physical input, output, and power grid blocks. This design simplifies PCB trace repair layouts and significantly minimizes pattern crosstalk and operational noise.
- Streamlined Circuit Profile: Features a modernized internal architecture that eliminates the need for external bootstrap resistors and bootstrap capacitors, creating a more reliable, fewer-component repair.
Technical Specifications:
- Manufacturer: Sanyo (Original New Old Stock / High-Quality Replacement)
- Package Type: Multi-Pin SIP-ZIP / HYB-16 (16-Pin Array with Heavy Aluminum Baseplate)
- Maximum Supply Voltage (Vcc max): ±74V (Typical Operating Voltage: ±51V)
- Total Harmonic Distortion (THD): Ultra-linear 0.02% typ. (at 1kHz, 30W output)
- Primary Applications: High-end home theater AV surround receivers, high-output karaoke systems, component stereo mainframes, and active professional subwoofers.
- Condition: Brand New / New Old Stock (NOS).
Critical Installation Notice: Due to the extreme 120W+ power capacity of this module, it generates tremendous thermal energy. Completely clean away all old, hardened thermal paste from your chassis heatsink plate. You must apply a fresh, thin, uniform layer of high-quality silicone thermal grease across the entire metal backing plate of the STK401-140 prior to bolting it down tightly.