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AudioControl AEQ-26 Installation Manual

Architectural equalizer

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AEQ-26
TM
Architectural Equalizer
making good stereo sound better
®
®
22410 70th Avenue West • Mountlake Terrace, WA 98043 • Phone 425-775-8461 • Fax 425-778-3166
www.audiocontrol.com

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Summary of Contents for AudioControl AEQ-26

  • Page 1 AEQ-26 Architectural Equalizer making good stereo sound better ® ® 22410 70th Avenue West • Mountlake Terrace, WA 98043 • Phone 425-775-8461 • Fax 425-778-3166 www.audiocontrol.com...
  • Page 3 A Brazen Plug For Other AudioControl Products ........
  • Page 4 AEQ-26 is an American-designed, American-built “set and forget” component which will provide a lifetime of trouble- free service. The new AEQ-26 is made by the only electronics com- pany in the world that specializes in equalizers, signal processors and audio analyzers. And the company whose professional sound division sells the most popular one-third octave real time analyzer in the world, the SA-3050.
  • Page 5 This allows analyzers and a totally awesome line of car stereo compo- the AEQ-26 to improve the sound of these smaller speakers nents. AudioControl began in 1977 and has won so many better than any other equalizer.
  • Page 6 Appendix A. Modules are also available from any Audio- Control car stereo dealer in a pinch. Final adjustment of The AEQ-26’s boost/cut controls in each zone is best done with a one-third octave real time analyzer and pink noise test signal, but it can also be done by...
  • Page 7 Multi-amp / Zone System...
  • Page 8 Master Power switch (on the back panel) turned on and significantly, such as from a bookshelf to floor stands, or the AEQ-26 is plugged into an active AC outlet, this little 3) if your room acoustics change through addition or red light will shine forth.
  • Page 9 6. Power Cord - The AEQ-26 draws a scant 6 watts (about 3. AC Power Fuse - This power fuse is here just in case the same as most clock radios). Don’t worry about something really awful goes wrong.
  • Page 10 Stashing the receipt away is very important in the unlikely AEQ-26 into your multi-zone system. If it seems overly event that your AEQ-26 ever needs servicing, or. . . well things detailed, please forgive us. We would rather tell you too do happen.
  • Page 11 1. Turn off ALL components before making any connec- 3. (Optional) A balanced line driver if you are going to tions. mount the AEQ-26 more than 20 feet from the preamp or 2. When making connections, designate RED RCA plugs as amplifiers.
  • Page 12 Before proceeding on to setting up the Speaker Optimiza- signals. This will provide better noise rejection against tion controls on the AEQ-26, it’s a good idea to make sure nasty things like hum, spikes, local talk radio, etc. Ask that you have everything connected and working properly.
  • Page 13 above. Since sound is energy, the way it reflects depends upon the angle of the surface, the type of material and the frequency of the sound wave. Because your listening posi- Magazine reviewers and audio system owners spend tion is likely to be towards the back of the Free Field shown much time critically appraising speaker and other stereo in the diagram, you also get part of the reflected Reverberant components.
  • Page 14 The following are examples of typical settings along with short descriptions of each AEQ-26 Speaker Optimizer control. As you can see, room acoustics is an important but Naturally, the results of adjustments will vary depending on complicated subject.
  • Page 15 Boosting it too far might cause problems, even though The AEQ-26’s PFM filter cuts frequencies under 40Hz. But if your speakers can take it, a mild boost will enhance bass instruments such as Fender bass, kick drum, floor toms, timpani and double bass violas.
  • Page 16 These bands also determine the speaker’s presence (whether the music sounds far away or close in). Small speakers often produce too much midrange, so these controls are candidates Now that digital audio is the preferred musical source, for being turned down slightly during your initial experimen- there’s more low bass running around in a typical system.
  • Page 17 The following standard module frequencies are available Pragmatically, it boils down to this: If you want ultra-low, from AudioControl: 20, 25, 35, 40, 45, 50, 60, 70, 80, 90, 100, foundation-shaking bass from an in-wall speaker, you should 120, 130, 150, 200, and several higher frequencies going up to add in a separate subwoofer, a somewhat expensive ap- 6000Hz which probably aren’t applicable except in very...
  • Page 18 AudioControl started out making graphic equalizers in present inside. 1977. In a way, the AEQ-26 is an equalizer and, like our other models, can make a greater improvement in the sound of The first task in changing the PFM module is to remove your system than almost any other addition or upgrade.
  • Page 19 Okay, enough commercials. Once again, we thank you for adding an AudioControl PFM modules require 6 resistors mounted on a 14-pin DIP component to your system and hope you enjoy a lifetime of header. In the 14-pin modules, the middle resistor position is performance and convenience.
  • Page 20 56 Hz 130 KΩ 22 Hz 330 KΩ on the AEQ-26 for five (5) years from the date you bought it, 20 Hz 360 KΩ and we will fix or replace it, at our option, during that time. 15 Hz 470 KΩ...
  • Page 21 Other than what we’ve said we’ll do in this warranty, we have AudioControl to service the AEQ-26 equalizer. If anyone no obligation, express or implied. We make no warranty of other than (A), or (B) messes with the AEQ-26, that voids your merchantability or fitness for any particular purpose. Also, warranty.
  • Page 22 No originals please. We cannot guarantee returning them to you. 2) A brief explanation of the trouble you are having with the AEQ-26. (You’d be surprised how many people forget this.) 3) A return street address. (No PO Boxes, please) 4) A daytime phone number in case our technician has a question about the problem you are having.
  • Page 23 All specifications are subject to change and improvement Equalizer Center Frequencies ......45Hz, 150Hz, 300Hz, 700Hz, 2500Hz, 12kHz Subsonic Filter Slope .
  • Page 24 Electronic Engineering & Manufacturing, Inc 22410 70th Avenue West • Mountlake T errace, WA 98043 • Phone 425-775-8461 • Fax 425-778-3166 ©1997, AudioControl, All Rights Reserved This manual was written and printed in the USA. No slugs were harmed in the production of this manual.