2 Pcs STK4050V STK4050 Two (2) STK4050V (STK4050) amplifier modules — supplied as a pair for replacement, , or project use. These modules are intended for equipment that uses the STK4050/STK4050V hybrid amplifier package and provide a convenient way to restore or upgrade audio amplification channels. Key benefits Ready pair: supplied as two identical modules, useful for stereo repairs or keeping a spare on hand. Direct replacement: fits equipment designed for the STK4050/STK4050V module footprint, helping restore original performance without major modification. Cost effective: replaces a failed amplifier module quickly to avoid costly equipment replacement. Reliable operation: designed to meet the original module's role in audio amplification circuits, helping maintain stable audio output when installed correctly. Key attributes Functionality: audio power amplifier module used in consumer and professional audio electronics to drive amplifier channels. Compatibility: intended for devices that specify the STK4050 or STK4050V module; suitable as a replacement part for matching equipment. Size and fit: standard STKseries hybrid amplifier module footprint for dropin replacement (confirm physical dimensions against the existing module before installation). Construction: packaged as an STKseries hybrid amplifier module with multiple leads for audio input, output, power, and ground connections. Performance: engineered to provide dependable amplification when installed per the original equipment design; follow original equipment thermal mounting and wiring recommendations. Common applications / use cases Receiver and amplifier : a failed STK4050/STK4050V module to restore an amplifier's left or right channel or both when purchased as a pair. Vintage audio maintenance: service older stereo equipment that uses STKseries hybrid modules to maintain original sound quality. DIY amplifier projects: use as a compatible amplifier module for hobbyist or prototype audio amplifier builds that accept the STK4050 footprint. Installation and handling notes Verify compatibility: confirm that the existing device uses the STK4050 or STK4050V module and that pinout and mounting match before installation. Thermal management: mount to the appropriate heatsink and use recommended insulating hardware as required by the original equipment. ESD and safety: handle modules with standard electrostatic discharge precautions and disconnect power before replacement. Consult documentation: refer to the original equipment service manual or the module datasheet for wiring, biasing, and safety details. What's included Two (2) STK4050V (STK4050) amplifier modules. If you need a matched pair for stereo repairs or a spare STK4050/STK4050V module for maintenance and projects, this twopiece set provides a practical, readytoinstall solution.