Preamp and mixer, 6 channel all-tube 60s. Binson was part of the rack formed by the pre-mixer, the ECHOREC legendary amplifiers.
Each channel is amplified by a 12AX7 and has a volume control, tone (bass, treble) and volume of the insert from the echo ECHOREC. There is a seventh 12AX7 preamp output.
Back: 6 inputs, 1 output, a sort of jack insert (input + output) for connecting the origin to echo the brand, but which could be used for any other purpose or for stacking two channels to saturate them ...
Superb sound, quality manufacturing, to try on just about everything (pickups, but also instruments ...). It's colorful, it's going fine until saturation, excellent for working with sound.
Very rare to find and need to redo a diet because it was common to the entire rack ... not a transparent preamp, it's colorful and it can work on the saturations like no other preamp and it sounds with all