Figure 5 - Krell Industries Evolution Owner's Reference Manual

Figure 5 Evolution Monaural Amplifier Back Panel (Evolution 600 shown)
Outputs
3 Loudspeaker Binding Posts
Inputs 4 CAST Input
5 Single-ended Input
6 Balanced Input
7 12 VDC Out/In (12 V Trigger)
Remote
8 Backlight Control
9 IEC Power Cord Receptacle
Power
10 Power Breaker Switch
18