Related Manuals for EM Acoustics AQ-3
Summary of Contents for EM Acoustics AQ-3
- Page 1 AQ-3 amplifier User Manual v1.0 EM Acoustics Loudspeakers Building 74 Dunsfold Park Cranleigh Surrey GU6 8TB www.emacoustics.co.uk...
- Page 2 AQ-3 Operating Instructions Page 2...
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Page 3: Table Of Contents
AQ-3 Operating Instructions Page 3 CONTENTS DECLARATION OF CONFORMITY THANKS INTRODUCTION IMPORTANT SAFETY INSTRUCTIONS INSTRUCTIONS DE SECURITE IMPORTANTES Installing Your Amplifier: Electrical Considerations Installing Your Amplifier: Mechanical Considerations Installing Your Amplifier: RF Emissions About Your Amplifier: Dynamic Amplifier Performance Measurements Error! Bookmark not defined. -
Page 4: Declaration Of Conformity
AQ-3 Operating Instructions Page 4 DECLARATION OF CONFORMITY We, the manufacturer: Audio, Units 6-8 Kingsgate Heathpark Industrial Estate Honiton, Devon England EX14 1YG acknowledge our responsibility that the following products: Kind of equipment: Audio amplifier Commodity Code: 8518408990 Type Designation:... -
Page 5: Thanks
Power Reduction Circuit (PRC) and Impedance Sensing There are two PRC circuits in the AQ-3: one for channels A & B and one for channels B & C. When the amplifier is to be used with 4 ohm speakers (or bridged mono into 8 ohms) or if you want to reduce the maximum power to protect the speakers, then the PRC can be selected via the switches on the rear panel. -
Page 6: Important Safety Instructions
AQ-3 Operating Instructions Page 6 IMPORTANT SAFETY INSTRUCTIONS CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN The lightning flash with arrowhead The exclamation point within an symbol within an equilateral triangle is equilateral triangle is intended to alert intended to alert the user to the presence the user of important operating and of uninsulated “dangerous voltage”... -
Page 7: Instructions De Securite Importantes
AQ-3 Operating Instructions Page 7 INSTRUCTIONS DE SECURITE IMPORTANTES ATTENTION: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR Le symbole représentant un éclair fléché Le point d’exclamation dans un triangle dans un triangle équilatéral a pour but équilatéral a pour but d’alerter d’alerter l’utilisateur de la présence d’une... -
Page 8: Installing Your Amplifier: Electrical Considerations
AQ-3 Operating Instructions Page 8 Installing Your Amplifier: Electrical Considerations The amplifier has been manufactured to comply with your local power supply requirements, but before connecting the unit to the supply, ensure that the voltage (printed on the rear panel) is correct. -
Page 9: Installing Your Amplifier: Mechanical Considerations
AQ-3 Operating Instructions Page 9 Installing Your Amplifier: Mechanical Considerations To ensure that this equipment performs to specification, it should be mounted in a suitable rack or enclosure as described below. Like all high power amplifiers, it should be kept away from other equipment which is sensitive to magnetic fields. -
Page 10: Connecting To Your Amplifier: Inputs
AQ-3 Operating Instructions Page 10 Connecting To Your Amplifier: Inputs The inputs are made via 3-pin XLR connectors, which are electronically balanced and should be connected via a high grade twin core screened cable, as follows: PIN1: Screen (see note) -
Page 11: Connecting To Your Amplifier: Speaker Outputs
As the currents involved are very high, and to ensure best performance, the speaker cables should be kept as short as possible and conform to the following minimum requirements: AQ-3, 14A into 4 Ohm speaker loads Do not connect the inputs/outputs to any other voltage source such as a battery, mains source or power supply, regardless of whether the amplifier is turned on or off. -
Page 12: Connecting To Your Amplifier: Bridged (Mono) Operation
AQ-3 Operating Instructions Page 12 Connecting To Your Amplifier: Bridged (Mono) Operation Pairs of channels may be independently bridged – channel pair A&B, and/or channel pair C&D. The method is the same for both channel pairs: Supply signal to Channel A or C input only and push in the appropriate rear panel switch marked “BRG A&B”... -
Page 13: Operating Your Amplifier: Front Panel Controls And Indicators
AQ-3 Operating Instructions Page 13 Operating Your Amplifier: Front Panel Controls and Indicators 1: Power Switch: This single pole switch turns the amplifier fully off (but does NOT isolate it from the mains supply). 2: Power LED: This indicates when the amplifier is active. This does NOT indicate the presence of a mains supply when the power switch is OFF. -
Page 14: Operating Your Amplifier: Notes And Switching On
AQ-3 Operating Instructions Page 14 Typical conditions that could cause the protection to be triggered include very high frequency or subsonic input signals, DC in the inputs, short-circuited outputs, or internal high temperatures. Temperature related faults will reset if the unit has cooled sufficiently. -
Page 15: Operating Your Amplifier: Rear Panel Sockets And Switches
AQ-3 Operating Instructions Page 15 Operating Your Amplifier: Rear Panel Sockets and Switches Channel A output SpeakON socket: Normal output is on pins 1+ hot, 1- cold. Channel B’s output is also wired to this socket to enable a single NL4 to provide both channels and to facilitate easier wiring in bridged mode. - Page 16 AQ-3 - 14A into 4 ohm speaker loads. 3. Do not connect the inputs/outputs to any other voltage source such as a battery, mains source or power supply, regardless of whether the amplifier is turned on or off.
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Page 17: Looking After Your Amplifier: Maintenance
AQ-3 Operating Instructions Page 17 Looking After Your Amplifier: Maintenance These maintenance instructions are for use by qualified personnel only. Before any routine maintenance, please ensure that your amplifier is disconnected from the mains supply! The filter behind the air intake apertures on the front of your amplifier should be cleaned or replaced periodically, e.g. -
Page 18: Changing The Gain Of Your Amplifier: Internal Adjustments
Power Requirements The AQ-3 can be supplied for nominal mains voltages of 115V or 230V. An internal link can be set to either 100V or 120V for the 115V version, and 220V or 240V for the 230V version. Normally these are set to 120V and 240V respectively. -
Page 19: Performance Of Your Amplifier: Specifications
AQ-3 Operating Instructions Page 19 Performance Of Your Amplifier: Specifications Main Specifications Parameter (Units) AQ-3 Output Power per channel [Crest Factor = 4.8] (Watts) 8 Ohms 4 Ohms 2 Ohms Output Power per channel bridged [Crest Factor = 4.8] (Watts)