For sale is one Shunyata Research Hydra Alpha Model 4 AC power line conditioner in excellent working condition. The Alpha Model 4 is the updated Model 4 based off the core design elements of Shunyatas former flagship Hydra Triton power conditioner. I am the original owner and purchased it from Dedicated Audio in Scottsdale, Arizona in 2014. It was RMAd to Shunyata Research for service after a power incident in my apartment in 2021 and professionally repaired and updated with components featuring technology nearly a decade newer. Includes retail box, all literature and materials, and service receipt from Shunyata. Will ship expedited via Hong Kong Post air services to US/Canada in 7-14 business days. I am a U.S. expat living in Hong Kong and have been an eBay member since 1999; please contact me if you have any issues before contacting eBay, and I will ensure buyer satisfaction. Thanks.