Marantz RX7001 Mode D'emploi page 19

You can set the power level as indicated below:
Power level
(Operating distance)
0 (0.7 m)
1 (1.5 m)
2 (2.0 m)
3 (2.5 m - default setting)
Remark The Dual IR emitters still send out IR signals when the power level is set to zero.
User Guide
15
The emission is never completely turned off.
How to Do More
Switch 1 Switch 2 Switch 3 Switch 4
0 (Off) 0 (Off)
0 (Off) 1 (On)
1 (On) 0 (Off)
1 (On) 1 (On)
0 (Off) 0 (Off)
0 (Off) 1 (On)
1 (On) 0 (Off)
1 (On) 1 (On)