The Atoll IN 50 is exactly what audiophiles would call a “minimalist” integrated amp: just two knobs (volume and input selector), an headphone jack (surprise surprise!), one “tape monitor” switch, a green “power on” led. Nothing else. The on-off switch is hidden in the rear panel, next to the mains IEC socket.
The IN 50 has 4 line inputs + 1 tape loop + two unusual pre-out RCA’s, meant to be used to drive two separate power amps when bi-amping. Neat. The loudspeakers gold-plated binding post accept any kind of cable termination (bananas included) but are not doubled for biwiring (not a real problem, though).