Description
Restore unmatched low-frequency impact or center-channel clarity to your high-performance audio systems with the STK404-140S. Developed using Sanyo's proprietary Insulated Metal Substrate Technology (IMST), this flagship thick-film hybrid integrated circuit functions as a high-output 1-channel (mono) Class-AB audio power amplifier, delivering a massive 120W continuous RMS and up to 180W maximum peak power into a 6Ω load.
Key Features:
- High-Output Flagship Mono Design: Delivers a sustained 120W RMS (with under 0.4% distortion from 20Hz to 20kHz) and scales up to 180W max peak output, optimizing dedicated single-channel current delivery without dynamic clipping.
- Class-AB Fidelity: Combines heavy electrical driving headroom with linear, warm analog dynamics, making it perfect for dedicated bass modules and theater dialogue reproduction.
- Miniaturized IMST Substrate: Employs an advanced, low thermal resistance aluminum substrate that uniformly spreads thermal load across the mounting base, compressing the physical package footprint by avoiding bulky discrete transistor layouts.
- Integrated System Protections: Features a built-in thermal protection grid and pin-configured paths optimized to seamlessly sync with external standby networks, speaker muting grids, and rapid 0.3-second load-shorting safety switches.
Technical Specifications:
- Manufacturer: Sanyo (Original New Old Stock / High-Quality Replacement)
- Package Type: Compact SIP-13 / SIP-ZIP (13-Pin Layout with Metal Heatsink Plate)
- Recommended Operating Voltage: ±51V (Maximum Supply Voltage: ±73V to ±78V Bipolar Symmetrical Rails)
- Output Load Impedance: Optimized for 6Ω speaker systems
- Primary Applications: Main power block for high-wattage active home subwoofers, center channel blocks in surround sound theater receivers, and active stage monitors.
- Condition: Brand New / New Old Stock (NOS).
Critical Installation Notice: Because a 180W mono amplifier concentrates immense thermal energy into a tightly compressed surface area, perfect thermal bonding is non-negotiable. Completely clean off all old, crusty thermal residue from your aluminum chassis heatsink bracket. Prior to fastening the module down firmly, apply a fresh, thin, uniform coating of premium silicone thermal grease across the entire metal backing plate of the STK404-140S.