Public Address Amp COM12/COM24 AUDAC PROFESSIONAL AUDIO EQUIPMENT Public Address Amplifier COM12/COM24 User Manual & Installation Guide
AUDAC PROFESSIONAL AUDIO EQUIPMENT User Manual & Installation Guide AUDAC http://www.audac.be info@audac.
Index INTRODUCTION ........................................................................................................................................................................................................................... 3 ENVIRONMENT............................................................................................................................................................................................................................. 4 SAFETY REQUIREMENTS ................
Introduction This section briefly describes the possibilities of the COM12/COM24 public address amplifier. T he COM12/COM24 public address amplifier was developed as an easy to use, flexible solution for multifunctional use.
Chapter 1 Environment Do not place this unit in an enclosed environment such as a bookshelf or closet. Ensure that there is adequate ventilation to cool the unit. Do not block the ventilation openings. Do not place the unit in environments which contain high levels of dust, heat, moisture or vibration. Do not use the unit near water or other liquids. Make sure no water or other liquids can be spilled, dripped or splashed on the unit. This unit is developed for indoor use only. Do not use it outdoors.
Safety Requirements Always handle the unit with care. Only use a grounded socket outlet and a power cord with grounding plug to plug in the unit. This unit is not a toy. It should not be operated by children. Do not stick objects through the openings of the COM12/COM24. Do not open the unit (risk for electrical shock). The COM12/COM24 contains several ‹ jumpers › which can be set. These settings may only be done by qualified people. CAUTION – SERVICING This unit contains no user serviceable parts.
Pin connections on Connectors Cinch (RCA): tip = signal (left or right) ring = ground XLR: 1 = ground / shield 2 = +sig 3 = -sig XLR female: XLR male: 6.3mm (1/4”) balanced jack plug: tip = +sig ring = -sig sleeve = ground / shield 6.
Chapter 2 Overview front and rear panel of the COM12/COM24 (same for the COM24) FRONT REAR 7
Overview Input Controls (same for the COM24) INPUT 1 - 6 (FRONT) Input volume controls Overview Output Controls (same for the COM24) OUTPUT 1-5 ( FRONT ) 2 band tone control Master volume control Output clipping LED Chime button Output VU-bar Zone output routing buttons Power button and blue ON-led 8
Overview Input section line inputs (same for the COM24) INPUT 1-6 (REAR) RCA unbalanced line inputs Input Level Gain Controls Priority switch Microphone phantom power switch 6.3mm jack balanced line inputs XLR balanced line inputs XLR / 6.
Overview Cascading Ports (same for the COM24) CASCADING PORTS (REAR) Amplifier input (unbalanced) Link input (unbalanced) Pre-amplifier output (unbalanced) Link output (unbalanced) Overview output section (same for the COM24) Fuse holder Power cord 100V zone outputs 4ohm zone output 10
Chapter 3 Getting Started The COM12/COM24 public address amplifier can be switched on by pressing the power button on the front panel. The blue ‹ ON › led will light up if the device is powered-up. On the front panel you can route the input signals to a specific zone output simply by pressing the routing button of the zone output. If you want to route the input signals to all zone outputs, press the ‹ All › button. By pressing the routing buttons a second time, the routing will be undone.
Priority settings The COM12/COM24 public address amplifier has a 3 layer priority mute function. The first layer has the highest priority, the third layer has the lowest priority. Layer 1 Telephone paging Layer 2 CH1, CH2, Chime, Remote Mic. Layer 3 CH3, CH4, CH5, CH6 When a source of a higher layer becomes active, all other input signals on the layers below are muted. The priority for CH1 and CH2 can be switched ‹ on › or ‹ off › on the rear panel.
Connecting external equipment If it is necessary to condition the output signal or to limit the output signal, an equalizer or limiter can be connected between the mixer section and the amplifier section of the COM12/COM24. This can be done by connecting the ‹ pre-amp output › to the equalizer or limiter input and connecting the equalizer or limiter output to the ‹ amp input ›. When you insert a 6.
Wire up the System The COM12/COM24 amplifier is very easy to use. Following cable specs must be followed to guarantee a correct operation: 1. Speaker cable for amplified zone output 4ohm: minimum 2x1.5 mm2 (distance >15m: 2x2.5mm2) 2.
Chapter 4 Additional Information COM12/COM24 Technical specifications COM12 Sensitivity Balanced Microphone Channels Balanced Line Channels Balanced Remote Microphone station Balanced Telephone Paging Unbalanced Link In Unbalanced Amp In -50dB±3dB -22dB±3dB -50dB±3dB -21dB±3dB -17dB±3dB -0dB±3dB Frequency Response (1Watt from speaker output tap. 100Hz-10kHz) THD+N by 1 kHz Signal to Noise ratio +1.5dB / -3dB Less than 0.
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