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Rare Find: Woo WA22 Class A Balanced Headphone Amp

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Price: 1800 USD Price is negotiable
Contact Stephen Campisi


The legend: Woo Audio WA22 Headphone Amplifier - with a customized premium NOS Tubes and a premium power cord included. 

This is a Generation 1 amp. Same functionality as Generation 2 but Gen 2 also has a preamp output. If you don't intend to use this as your preamp, why spend $500 more?
Fully balanced Class A design. New cost for this setup is $4,000. Suggested price is less than half replacement cost. 
Premium tubes allow you to hear the full potential of this fabulous amplifier. These tubes were purchased from a knowledgable and reliable high-end dealer as a matched set especially suited for this amp. Leading the lineup is a pair of the legendary Western Electric 421A power tubes. The Tung Sol drivers and the GEC power rectifier tubes are also among the best available and selected to complement these beautiful power tubes. These are NOT the typical eBAY-type tubes of uncertain quality. Tubes have little use, perhaps 350 hours. Cost for the tubes alone was $1,500. (Unfortunately, really good tubes cost 50% to 100% of what their components cost. But they sound so good!)
Very flexible design, with inputs for 3 types of headphone connectors: 4-pin XLR, Dual 3-pin and 1/4". BOTH balanced (XLR) and unbalanced (RCA) inputs in the back. This allows you to connect two sources and switch between them. You can also switch between 115V and 230V. Uses a standard C15 (15A) power cord. 
Bonus: premium power cord included. (Stock cords are "throw away" cords!)
I don't have the original box; it was lost in my recent move. This will be securely packed.
This headphone amp is legendary; hand made in the USA. In my opinion, this amp is the best value at this price point. 
Reasonable offers accepted. 
Offered in CONUS only. No international sales. 


United States, North America
254 Oak St, 06040


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