We have rebuilt and modified more Ampex 600 series units than anyone. Really. We completely dismantle the units and rebuild them from the ground up into the tone monsters they were born to be. Cinemag input transformers, Edcor output transformers, new JJ EF86 and 12AU7 tubes, ceramic tube sockets, 1% precision film resistors, polypropylene film capacitors, and a host of studio features make these units sing. If you are looking for an Ampex 600 series, then these are the droids you are looking for. Contact Us for availability and/or details on sending in a unit for the service. 

​

Rack ears available here.