Fet Valve Power Amplifier Upgrade

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  • Regular price $1,999.00


Fet Valve 400R and 600R upgrades are available for all older AVA hybrid amplifiers built in our standard large amplifier chassis. These include new audio boards, new small signal regulated power supply board, new output regulator boards, and new Exicon double die MOSFETs as required.

This upgrade reuses all your existing chassis components, including the faceplate.