D&b Audiotechnik D12 Hardware Manual - page 3
Contents
1. Safety precautions..........................................................5
1.1. Information regarding use of the D12 amplifier.............................5
2. Introduction.....................................................................6
2.1. Scope of supply.......................................................................................6
3. D12 Amplifier..................................................................7
3.1. D12 based systems.................................................................................7
3.2. D12 block diagram................................................................................7
3.3. Digital signal processing........................................................................8
3.4. D12 power amplifiers............................................................................9
3.5. SenseDrive................................................................................................9
3.6. Power supply.........................................................................................10
3.6.1. Inrush current limiter................................................................11
3.7. Fan...........................................................................................................11
3.8. Remote control......................................................................................11
4. Controls and indicators................................................12
4.1. Controls..................................................................................................12
4.1.1. Mains power switch [1]............................................................12
4.1.2. MUTE switch (A/B) (green LED) [2].......................................12
4.1.3. LEVEL/PUSH MENU (Digital rotary encoder) [3]..............13
4.2. Indicators................................................................................................14
4.2.1. LC Display [4].............................................................................14
4.2.2. ISP LED (A/B) - Input Signal Present (green) [5]................14
4.2.3. GR LED (A/B) - Gain Reduction (yellow) [6].......................14
4.2.4. OVL LED (A/B) - Overload (red) [7]:...................................14
5. Connections...................................................................15
5.1. Mains panel...........................................................................................15
5.1.1. Mains power connection [8]...................................................15
5.1.2. Fuse protection [9 (a/b)].........................................................15
5.1.3. REMOTE [10].............................................................................16
5.1.4. SERVICE [11]..............................................................................16
5.2. Connector panel (I/O Panel).............................................................17
5.2.1. INPUT A/B [12] and LINK A/B [13]......................................17
5.2.2. INPUT DIGITAL AES/EBU [14a] and LINK [14b]...............17
5.2.3. OUT A/B [15 (a/b/c)]..............................................................17
5.2.4. D12 I/O modes.........................................................................17
5.2.4.1. Dual channel mode...................................................18
5.2.4.2. Mix TOP/SUB mode.................................................18
5.2.4.3. 2-Way Active mode - Single input.......................19
5.2.5. Loudspeaker wiring..................................................................19
5.2.5.1. Loudspeaker pin assignments and equivalents. .20
6. Installation and operation...........................................21
6.1. Installation..............................................................................................21
6.2. Operation..............................................................................................21
6.2.1. Power consumption and power loss....................................21
6.2.2. Operating conditions...............................................................22
6.2.3. Mains supply..............................................................................23
7. Technical specifications.................................................24
7.1. Technical drawings...............................................................................26
D12 Amplifier, Hardware manual
(4.4 EN)
Contents - 1