A T L A S Hybrid Power Amplifier Owner’s Manual For both Stereo and Mono Amplifiers PLEASE READ THIS DOCUMENT IN ITS ENTIRETY BEFORE USING THE ATLAS. Aesthetix Audio Corporation 5220 Gabbert Rd., Suite A ♦ Moorpark, CA.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of significant magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
PREFACE INTRODUCTION Thank you for purchasing the Atlas power amplifier. It has been engineered to deliver the highest attainable sound quality from your music sources. This is its sole purpose.
SAFETY PRECAUTIONS Please carefully read each item of the operating instructions and safety precautions before installing and using this product. Use extra care to follow the warnings written on the product itself and/or in the operating instructions. Keep the operating instructions and safety precautions for future reference. CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE ANY OF THE COVER PANELS. NO USER-SERVICEABLE PARTS INSIDE. PERSONNEL ONLY.
Table Of Contents PREFACE............................................................................................................................3 INTRODUCTION ..............................................................................................................3 PLACEMENT....................................................................................................................3 BURN IN TIME ................................................................................................
Front Panel Layout Figure 1 - Front Panel Layout – Stereo and Mono versions 1. DISPLAY button. Press to extinguish or turn on the display, set display brightness. 2. Display LED. Not used. 3. LED DISPLAY 4. MUTE button. Toggle to mute or unmute the Altas. 5. Mute LED. Illuminates when the Mute function is active. 6. Pressing the left side of the DISPLAY will decrement the value when in a submenu. 7. INPUT button. Used to select the appropriate rear panel input connector. Ensure that this is set correctly.
Rear Panel Layout Figure 2 - Rear Panel Layout – Stereo Version 1. 6-32 screws to secure the top cover. Before removing top cover, turn off rear panel MAIN POWER switch and wait 15 minutes. Then remove the two 6-32 screws and pull up top cover from the rear panel. 2. Right channel BINDING POST. appropriately marked terminals. Connect plus and minus speaker wires for the right speaker to 3. AC POWER INPUT. 4. MAIN POWER Switch. Disconnects AC to all circuits.
Figure 3 - Rear Panel Layout – Mono Version Note: Figure 3 shows a Right Channel Mono Atlas. A Left Channel Mono Atlas would be identical with the exception of the inputs and the output being on the opposite side. 1. 6-32 screws to secure the top cover. Before removing top cover, turn off rear panel MAIN POWER switch and wait 15 minutes. Then remove the two 6-32 screws and pull up top cover from the rear panel. 2. Output channel BINDING POST.
CONNECTIONS CAUTION: Make all input and output connections before turning on the Altas Main Power Switch. Determine whether the internal crossover is to be used. If it is, use either the single-ended or balanced CROSSOVER INPUT jacks. If the internal crossover will not be used, use either of the DIRECT INPUT jacks. CAUTION! Note that when connecting the speaker cables that the positive terminal is at the bottom of the left channel whereas the positive terminal is at the top of the right channel.
SELECTING INPUTS Make sure that the Atlas is muted and then select the desired input jacks by pressing the INPUT button. The currently selected jack will be shown in the display. The possible options are SE 1, BAL 1 (these are the DIRECT INPUTs, and SE 2 and BAL 2. The latter two (the ones with the number 2 after them) correspond to the CROSSOVER INPUTs. To change a setting, press either the left (down) or right (up) edge of the DISPLAY lens. Warning: It is imperative that the input be set correctly.
RS232 All functions of the Atlas can be controlled and monitored via RS232, using the DB9 connector. As long as the rear panel power switch in turned on, the RS232 circuitry is always active, thus allowing the Atlas to be taken out of STANDBY via RS232. Refer to Appendix C for more information on using RS232. Please refer to Appendix D for additional information.
Appendix A Troubleshooting Guide If the Atlas should function abnormally during operation, please review the items in the following checklist. Please be sure to thoroughly check all other connected components such as speakers, preamplifiers, as well as cables. Symptom Possible Cause(s) Remedy No power or front panel lights and no sound. Power cable is not inserted 100% into AC input connector. Power Supply fuse is open. Rear panel fuse is open. Circuit breaker is open (AC outlet).
Appendix B Wiring Diagrams Figure 4 - Examples of Typical Input and Output Connections – Atlas Stereo 13
Wiring Diagrams – Con’t Figure 5 - Examples of Typical Input and Output Connections – Atlas Mono Right Figure 5 - Examples of Typical Input and Output Connections – Atlas Mono Left 14
Appendix C Block Diagram Figure 4 - Block Diagram 15
Appendix D RS232 Protocol RS232 Hardware Connections Figure 5 – Atlas RS232 Jack Pinout These are the connector drawings only. The RS232 cable must be a regular RS232 or mouse extender cable, wired pin for pin. The RS 232 Protocol data is available upon request.
Appendix E Specifications Atlas Stereo Inputs: Connectors: 1 Single-ended and 1 Balanced per channel for the Direct Input. 1 Single-ended and 1 Balanced per channel for the Crossover Input. Input Impedance: Direct: Crossover: Outputs: 470 KΩ Single-ended or Balanced for each phase. Variable. Input sensitivity: (Balanced) 2.3V RMS typical input for 200W into 8 ohms. Gain: (Balanced) 24dB. Polarity: (Single-ended) Non-Inverting.
Specifications Con’t Atlas Mono Inputs: Connectors: 1 Single-ended and 1 Balanced for the Direct Input. 1 Single-ended and 1 Balanced for the Crossover Input. Input Impedance: Direct: Crossover: Outputs: 470 KΩ Single-ended or Balanced for each phase. Variable. Input sensitivity: (Balanced) 3.1V RMS typical input for 300W into 8 ohms. Gain: (Balanced) 24dB. Polarity: (Single-ended) Non-Inverting. (Balanced) Pin-2 = Positive, Pin-3 = Negative for Non-Inverting Output.
90 DAY LIMITED WARRANTY TERMS AND CONDITIONS (3 Year optional extended service contract) 1. Aesthetix warrants the product designated herein to be free of manufacturing defects in material and workmanship, subject to the conditions herein set forth, for a period of 90 days from the date of purchase by the original purchaser.
