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Table of Contents
Related Manuals for Altair A3.5
Summary of Contents for Altair A3.5
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Page 1: Owners Manual
A 3.5,7,11 PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES NOTICE: PIN 2+ OWNERS MANUAL EQUIPOS EUROPEOS ELECTRÓNICOS, S.A.L Avda. de la Industria, 50. 28760 TRES CANTOS-MADRID (SPAIN). 34-1-804 32 65 34-1-804 43 58 altair@altairaudio.com www.altairaudio.com... -
Page 2: Table Of Contents
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES CONTENTS 1. INTRODUCTION 2. SWITCHES, INDICATORS, ATTENUATORS AND CONNECTORS FRONT PANEL REAR PANEL 3. WORKING PRECAUTIONS 4. INSTALLATION UNPACKING MOUNTING CHANGING THE FUSE CONNECTING TO THE MAINS INPUT CONNECTION UNBALANCED INPUT BALANCED INPUT OUTPUT POWER CONNECTION. MODES OF OPERATION STEREO MODE OPERATION BRIDGE MODE OPERATION EARTH LINK... -
Page 3: Introduction
There is a lot the characteristics that make of the ALTAIR power amplifiers ADVANTAGES series, one of the most highlighted of the audio professional market, here enumerated some: Multiple protection Has improved the circuits of DC output protection by relay. -
Page 4: Switches, Indicators, Attenuators And Connectors
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES 2. SWITCHES, INDICATORS, ATTENUATORS AND CONNECTORS. These are the switches, indicators, attenuators and connectors that you could find in your power amplifier. The description and explanation of each one, you will find it in the corresponding section. -
Page 5: Working Precautions
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES EARTH LINK SWITCH. INPUT SIGNAL CONNECTOR XLR-3-31. STEREO/ BRIDGE SWITCH. XLR-3-32 OUTPUT SIGNAL CONNECTOR. (ONLY WITH THE OPTIONAL CROSSOVER CARD FITTED). INPUT SIGNAL SELECTOR FOR EACH CHANNEL. (ONLY WITH THE OPTIONAL CROSSOVER CARD FITTED). 3. WORKING PRECAUTIONS The manufacturer cannot be held responsible for any damage that is incurred by not using the power amplifier in compliance with the warranty or working precautions. -
Page 6: Mounting
MODEL FUSE (230V. 50-60 Hz) FUSE (115V. 50-60 Hz) T5A. T8A. A3.5 T6A. T12A. T8A. T16A. Make sure that the power amplifier is disconnected from the mains. At the power amplifier rear panel is placed the fuse holder. Unscrew the most external part of the fuse holder. -
Page 7: Connecting To The Mains
MODELS MAXIMUM CURRENT REQUIREMENT A3.5 Make sure that the power amplifier power switch is at position 0 (turned off). Insert the male connector of the three-wire cable into the mains plug. -
Page 8: Unbalanced Input
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES The input connection depends on two factors, the first is the type of input signal balanced or unbalanced, and the second the ground configuration of the sound source (floating or ground- referenced). The next pictures shows some of the different possibilities of connection, relying on the type of input signal, balanced or unbalanced and according to the ground configuration of the equipment (floating or ground-referenced). -
Page 9: Balanced Input
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES Ground-referenced sound source ( BALANCED INPUT: Floating sound source ( Ground-referenced sound source ( OUTPUT POWER CONNECTION. MODES OF OPERATION Each channel includes a pair of five-way binding post. The red binding post is positive and the black is ground. -
Page 10: Stereo Mode Operation
The next list shows the maximum output current of the power amplifiers according to the model: MODELS MAXIMUM OUTPUT CURRENT A3.5 13A. 16,5A. There are many factors that determine the loudspeaker cable diameter: the length of the cable, the type of signal that is going to circulate for it, the output power of the power amplifier etc. -
Page 11: Bridge Mode Operation
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES BRIDGE MODE OPERATION: In BRIDGE mode, the input should be inserted on the XLR CH! input connector. In this mode the power of the two channels will be added over a single load. The CH1 input attenuator controls both channels, remaining the CH2 input attenuator disabled. -
Page 12: Operation
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES MAINS EARTH LINKED WITH THE P. AMPLIFIER INPUT SIGNAL ELECTRIC GROUND. MAINS EARTH LIFTED FROM THE P. AMPLIFIER INPUT SIGNAL ELECTRIC GROUND. CAUTION: Sometimes, lifting the mains earth, by using a ground-lift connector, cancels some hum noises on the audio system, but this is very dangerous and not advisable, because should any circumstance part of the mains signal is derived to the chassis, could cause a short circuit through our body, upon having eliminated one of the working precautions of the unit. -
Page 13: Signal Indicators
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES CLIP section SPECIAL OPERATIONS- LIMITER CONFIGURATION). The CLIP indicators are independent in each channel, and indicate a real saturation, by comparing input and output continuously, and are independent of the mains voltage. CLIP The CLIP indicators also illuminates when there is an output short-circuit, whenever one input signal is being introduced to the power amplifier. -
Page 14: Fan
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES The power amplifier includes a thermally controlled system, which continuously regulates the fan speed depending on, the heat energy it has to evacuate. This variable speed circuit avoids abrupt changes of temperature and substantially extents the working life of the components builds in. -
Page 15: Special Operations
The input sensitivity and limiter configuration of both channels, takes place in the driver card, shown in the next figure (DRIVER A5/11 ALTAIR -081). This board is located parallel to the power amplifier bottom plate. The driver board is wide, occupying almost the whole width of the power amplifier. - Page 16 The voltage selector is placed in the left side of the power supply card, shown in the next figure (POWER SUPPLY A5/11 ALTAIR -082). The power supply card is located in the front-left side of the power amplifier, (as you face the front panel).
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Page 17: Input Sensitivity/Gain Adjust
36-6 = 30). GAIN (dB) INPUT SENSITIVITY MODELS 0 dBu (0,775 V). +8 dBu (1,95 V). A3.5 LIMITER ON/OFF The power amplifier's limiter reduces the input signal when the power amplifier starts to saturate, which avoids high saturation and loudspeaker damage. -
Page 18: Changing The Mains Voltage
Make sure that the power amplifier is disconnected of the mains. Set up the voltage selector, placed in the left side of the power supply card (POWER SUPPLY A5/11 ALTAIR -082), in the position that shows the voltage that you want to connect it. Power Amplifier set up 115 V. -
Page 19: Distributed Systems Application (Public Address)
OUTPUT POWER Watts RMS 1KHz, THD+N 0,1% Bridge mode MODEL 70,7 V LINE 100 V LINE A3.5 1100 8. OPTIONAL CROSS-OVER CARD. An optional crossover card is available as an option to be installed and configured by using a simple screwdriver. -
Page 20: Technical Specifications
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES 9. TECHNICAL SPECIFICATIONS MODEL A3.5 OUTPUT POWER IN WATTS (RMS, 1KHz, THD < 0,1%) Stereo mode: 8Ω (per channel, botch channel driven) 4Ω Bridge mode: 1100 8Ω Dynamic power EIA RS-490: 8Ω (Botch channels driven) 4Ω... -
Page 21: Graphs
PROFESSIONAL POWER AMPLIFIERS ADVANTAGE SERIES 10. GRAPHS A11: Typical common mode relation ratio (C.M.R.R.) A11: Frequency response at rated output into 4Ω. versus frequency at rated output power. A11: Channel separation L -> R, R->L. A11: Total harmonic distortion versus frequency at rated output power, into 4Ω. -
Page 22: Warranty
Equipos Europeos Electrónicos reserves the right to modify the prices or the technical specifications without notice. SERIAL NUMBER ........... EQUIPOS EUROPEOS ELECTRÓNICOS, S.A.L Avda. de la Industria, 50. 28760 TRES CANTOS-MADRID (SPAIN). 34-91-804 32 65 34-91-804 43 58 altair@altairaudio.com www.altairaudio.com...
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