
apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 6
3. CONTROLS
8  | 1  | 4  | 12  | 11  | 7  | 17  | 
English
APX 1301 controls and input connections
9  | 14  | 13  | 5  | 2  | 3  | 6  | 15  | 16  | 10  | 
77 17
APX 4241 controls and input connections
8  | 1  | 4  | 12  | 11  | 7  | 17  | 
  | APX 2121 controls and input connections  | ||||
1.  | RCA input jacks  | 8.  | Speaker level inputs  | 13.  | Front frequency control  | 
2.  | Front RCA input jacks  | 9.  | Front speaker level  | 14. Front   | |
3.  | Rear RCA input jacks  | 
  | inputs  | 
  | switch  | 
4.  | Gain control  | 10.  | Rear speaker level  | 15.  | Rear frequency control  | 
5.  | Front gain control  | 
  | inputs  | 16. Rear   | |
6.  | Rear gain control  | 11.  | Frequency control  | 
  | switch  | 
7.  | Bass boost control  | 12.  | 17.  | Status indicator light  | |
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