Now the internal topography of the amp unit is fixed (for now?) the positions of the controls and connections have been fixed. The following diagram shows them.
Far left is the mains/power knob. On the right, the smaller top one in the stack is the input selector switch with the volume control below. To the right is a 3.5mm mini-jack input. next to the right is the headphone switch and then the headphone jack.
The lower diagram shows the rear of the unit. Right shows the mains input connector socket. On the left top shows phono inputs above with a single phono sub-woofer output below. Either side of these are shown the speaker connections, left and right.