
IA 202D / IA 402D Instruction Manual
Revision 3
Contents
1. Important Safety Instructions.................................................................................................... 4
2. Introduction .............................................................................................................................. 6
3. Overview .................................................................................................................................. 8
3.1. Front Panel ....................................................................................................................... 8
3.2. Rear Panel ........................................................................................................................ 9
4.1. Package Contents ........................................................................................................... 10
4.2. Unpack Your Amplifier .................................................................................................... 10
4.3. Installation ..................................................................................................................... 10
4.4. Handling ......................................................................................................................... 11
5.1. Controls & User Interface ............................................................................................... 11
6. Screen Items & Operation ....................................................................................................... 12
6.1. Overview ........................................................................................................................ 12
6.2. Main Menu ..................................................................................................................... 13
6.3. DSP Settings ................................................................................................................... 13
6.3.1. Input Sensitivity ..................................................................................................... 13
6.3.2. Input Routing ......................................................................................................... 13
6.3.3. Channel A / B ......................................................................................................... 14
6.3.3.1. Preset ............................................................................................................ 14
6.3.3.1.1. Preset Loading ............................................................................................ 15
6.3.3.1.2. Preset Saving .............................................................................................. 15
6.3.3.1.3. Preset Information ..................................................................................... 16
6.3.3.2. Input Level ..................................................................................................... 16
6.3.3.3. HP/LP Filter .................................................................................................... 17
6.3.3.4. Phase Inversion .............................................................................................. 17
6.3.3.5. Equalizers (EQ 1 to EQ 5) ................................................................................ 17
6.3.3.6. Delay ............................................................................................................. 18
6.3.3.7. Reset User Params ......................................................................................... 18
6.3.4. Both Channels ........................................................................................................ 19
6.3.4.1. Link Channels ................................................................................................. 19
6.3.4.2. Load Preset .................................................................................................... 19
6.3.4.3. Reset User Params ......................................................................................... 20
6.3.5. Delay Settings ........................................................................................................ 20
6.4. System Settings .............................................................................................................. 21
6.4.1. LCD Backlight ......................................................................................................... 21
6.4.2. LCD Brightness ....................................................................................................... 21
6.4.3. Reset ...................................................................................................................... 21
6.4.4. HW Information ..................................................................................................... 22
6.4.5. Firmware Update ................................................................................................... 22
6.4.6. Lock ....................................................................................................................... 22
7. Other Functions ...................................................................................................................... 23
7.1. Screen locking/unlocking ................................................................................................ 23
7.2. Quick Output Level Change ............................................................................................. 23
7.3. Quick Mute ..................................................................................................................... 23
8. Signal Flow Diagram ................................................................................................................ 24
9. Menu Tree .............................................................................................................................. 25
10. Mechanical Dimensions ...................................................................................................... 26