Optimus AM-30U Installation And Operating Instructions Manual page 14

1. FRONT PANEL............................................................................................................. 3
2. REAR PANEL............................................................................................................... 4
3. BLOCK DIAGRAM ....................................................................................................... 5
4. CONNECTIONS............................................................................................................ 6
4.1. AC mains connection ................................................................................................ 6
4.2. Audio inputs ............................................................................................................... 6
4.2.1. MIC 1/TEL.............................................................................................................. 6
4.2.2. MIC 2 ..................................................................................................................... 6
4.2.3. AUX / CD input...................................................................................................... 6
4.3. EQ controls.................................................................................................................. 7
4.4. Manual priority contact MIC1/TEL ............................................................................ 7
4.5. Music on Hold ............................................................................................................ 7
4.6. Loudspeakers connection ........................................................................................ 7
4.6.1. 100 V line .............................................................................................................. 8
4.6.2. 70 V line (inner PCB selectable).......................................................................... 8
4.6.3. Low impedance (4 Ω, 8 Ω, 16 Ω).......................................................................... 8
5. PLAYBACK KEYS ....................................................................................................... 9
5.1. USB mode .................................................................................................................... 9
5.2. Tuner mode.................................................................................................................. 9
6. TECHNICAL SPECIFICATIONS .................................................................................10
7. GUARANTEE CERTIFICATE......................................................................................11
AM-30U / AM-60U Version 1.0
AM-30U / AM-60U
INDEX
Amplifier
Page 2 of 11