Erhard Audio

Custom, handcrafted vacuum tube audio gear - Erhard Audio
Designed and built for the discerning analog audio enthusiast

Dynaco PAS & ST-70 upgrade kits, PAS New Generation Preamp kits and
ReVox & Studer upgrade kits

Appointed USA distributor and reseller for all Lundahl Transformers

Exclusive reseller of Audioamp Auto Bias Modules for the USA & Canada