Marvel two analog two tracks!
Almost a class revox with less maintenance!
Mine must date from 1977 or 1978!
No failure, only a small replacement heads to prvoir
After 30 years, and god knows if he has turned!
(Model house 7 / 7 - live recording ...)
In addition, micro pramp have a gain and an extraordinary grain, despite the ente
asymrique!
(Enough to blush pramplis lamps ...)

Dynamics and signal to noise ratio with Ampex 456 exellent!