d&b 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........................18
5.2.5. Loudspeaker wiring....................................................................19
5.2.5.1. Loudspeaker pin assignments and equivalents...19
6. Installation and operation............................................20
6.1. Installation.................................................................................................20
6.2. Operation.................................................................................................20
6.2.1. Power consumption and power loss......................................20
6.2.2. Operating conditions.................................................................21
6.2.3. Mains supply................................................................................22
7. Technical specifications..................................................23
7.1. Technical drawings.................................................................................25
D12 Amplifier, Hardware manual (4.9 EN) Contents - 1