ETERNAL SERIES SUBWOOFERS AWES10P / AWES12P / AWES15P The Audiobahn Way To bring the product to market that excites the consumer through sound and vision from an orientation of integrity and customer service. We make you look as good as you sound. We strive to take car audio to an extreme the world has never seen, and a world that never stops evolving. Audiobahn was established in 1997 with one long-term goal in mind, "Build it Bigger, Badder, & Better, and the people will take notice!" We back this statement with an engineering team that has brought home several Innovations, Design & Engineering Showcase Awards, and a marketing team from around the world that spends countless hours developing our no compromise products to satisfy the most discriminating enthusiasts. Our global manufacturing facilities feature ISO9002 ratings (the highest level of quality control awarded in the electronics manufacturing industry), fully robotic assembly lines and a state of the art, California based R & D laboratory. Due to overwhelming response from our competitors, and our goal to participate in even more events this year, we created *"TEAM AUDIOBAHN." This organization is designed to create a support network along with shirts and perks for team members. "TEAM AUDIOBAHN" is not only for the diehard competitor, but also for anyone that loves car audio as much as we do. With four levels of play, one is right for you to get started in the Audiobahn family. Our Technical Department and entire staff look to strive above and beyond the rest of the pack by going that extra mile to help you out. Whether you happen to be a veteran competitor, or a beginner car audio enthusiast that does not know a voice coil from a spider. We are all here to help you get the best system you can with what you have. Judge for yourself, and remember what it's all about, "If it's not Bigger, Badder & Better, it's not Audiobahn." If audio is your life, Audiobahn is the brand for you! We make you look as good as you sound. People never stop trying to get the best product, so we will never stop making it. *To learn more about "TEAM AUDIOBAHN" please give us a call, see our website at www.audiobahninc.com, or email us at team@audiobahninc.com to learn about all the details. Table of Contents Table of Contents INTRODUCTION WOOFER INTRODUCTION WOOFER FEATURES THIELE / SMALL PARAMETERS BOX PARAMETERS GRAPHICAL RESPONSE CURVES ENCLOSURES AND SETUP TROUBLE SHOOTING WARNING / DISCLAIMER WARRANTY 3 4 5-6 7 8 9-11 12 13 14 15-16 2 Introduction Dear Customer, Congratulations on your purchase of the worlds finest brand of car audio products. Here at Audiobahn Inc. we are devoted to making our musical reproduction the very best, and we are pleased you have chosen our product. Through years of engineering expertise, hand craftsmanship, and critical testing procedures, we have created a wide range of products that reproduce music with all the clarity and richness you deserve. For maximum performance we recommend you have your Audiobahn product installed by an Authorized Audiobahn Dealer, as we provide specialized training through our Audiobahn Installer Training Programs. Please read your warranty, keep your receipt, and original carton for possible future use. Great products and proper installation are only a small piece of the puzzle when it comes to your system. Make sure that your installer is using only 100% authentic installation accessories from the Audiobahn Connections. The Audiobahn Connections line has everything ranging from the smallest terminal, to power wires up to 0 gauge, and 4 channel RCA cables. To get a free brochure on Audiobahn products and Audiobahn Connections in the U.S. call (714) 988-0400 or e-mail us at sales@audiobahninc.com. WARNING Continuous exposure to sound pressure levels over 100 dB may cause permanent hearing loss. High powered autosound systems may produce sound pressure levels well over 135dB. Need we say more! Use common sense. If after reading this manual, you still have questions regarding your product, we recommend that you see your nearest Audiobahn Dealer. A list of Authorized Audiobahn Dealers can be found on our web page. If you need further assistance, feel free to call us at (800)488-8595 and ask for the Technical Department. Be sure to have the model number, date of purchase, and invoice number available when you call. The model number can be located on the outside of the carton. Record this in the space provided below along with the date of purchase. It is a good idea to keep your receipt with this, as you will need it in the case of a warranty repair or exchange. Model Number:___________________ Date of Purchase: _____________________ 3 Woofer Introduction Audiobahn woofers are a low frequency driver designed primarily for use in small sealed or vented enclosures depending on the model of sub. Please check the specifications in this manual, our website at www.audiobahninc.com , or call us at 714-988-0400 or 800-488-8595. As specifications and parameters are subject to change, we highly advise always checking our web site or calling us for the most current information. By utilizing the latest materials and construction design and techniques, we are able to offer a subwoofer with optimized low frequency response. Woofer Content Audiobahn Dual Voice Coil Etternal Sub Audiobahn Sticker Installation & Owner's Manual Wipe Towel Registration and Warranty Card Technical Design Features Cast Basket The dual voice coil woofers use a polished chrome aluminum cast basket. This ensures a perfect alignment on each and every woofer. Unlike stamped baskets the cast basket can not bend or tweak under normal play and wear. Rigidity is important when trying to achieve high SPL and loud bass response. Concave Dust Cap This provides the best combination of weight and strength, which allows for extremely high levels of output without cone failure. The convex shape of the cone provides increased rigidity and lowers distortion. 4 Woofer Features 3" Black Aluminum Former The voice coil former is black anodized aluminum for highly efficient thermal transfer. This allows winding high temperature copper wire in multiple layers for improved efficiency. This provides the sub with improved power handling by efficiently dissipating heat. Extended Pole Piece The pole piece has been extended to provide a more linear magnetic field for the operation of the woofer. This lowers distortion and provides the woofer with better low frequency response. Vented Oversized Back Plate The back plate has been stepped deeper to allow the woofer more excursion without bottoming out. Additionally, the back plate is vented with a radius aerodynamic back vent which efficiently and quickly circulates cool air around the voice coil. This allows for more excursion and higher power handling without damaging the sub. Voice Coil The 4-layer, edge wound voice coil design of the speaker allows for a variety of impedance loads to be configured when used individually or matched with multiple subs. Please continue to the TECH TIPS section of this manual for wiring diagrams and procedures. The Eternal Series subs come in dual 4 ohm coil configurations. 5 Woofer Features 2" Phat Foam Surround The 2" foam surround is resilient to temperature variations and provides the consistent support necessary for the linear motion of the speaker cone. In addition, the inherent damping capabilities eliminates the transmission of sonic disturbances between the cone and the frame of the speaker. This greatly improves the clarity of the speakers frequency response. The narrow surround also allows for greater surface area of the cone, thus increase efficiency for low frequency response. Flat Spider The speaker's linear compliance is balanced through the use of a flat spider design. A flat spider provides symmetrical control of the voice coil through it's cone excursion. Linear cone excursion reduces harmonic distortion for improved sound quality. This allows for reduced mechanical distortion for better sound quality. Chrome Finish Chrome has long been an industry standard in terms of durability in protective metal finishes. We have spared no expense in this area, and not only is it a protective finish, but it is also a great addition to any plexi style enclosure. 6 Audiobahn Woofer Parameters AWES12P AWES15P Model # AWES10P Vas does not represent the volume of a Box. Vas is just a parameter used when calculating a box. 25 Hz 22 Hz Fs 30 Hz Qts 0.5 0.5 0.493 0.55 0.54 Qes 0.54 5.89 7.4 Qms 6.99 60.51 Liters 91 Liters Vas (Liters) 20.18 Liters Vas (Cu. Ft.) 0.71 Cu. Ft. 2.14 Cu. Ft. 3.21 Cu. Ft. 3.6 ohms 3.6 ohms Re 3.6 ohms 3.86 mH 4.18 mH Le 3.75 mH Mmd 146.44 Grams 151.33 grams 220.57 grams Xmax +/-13mm +/-13mm +/-14 mm RMS 900 1100 1300 Sd 0.029 0.048 0.081 Freq. Resp. 20Hz-500Hz 18Hz-500Hz 15Hz-500Hz Efficiency 90 92 94 An EBP of less then 45 is SUGGESTED for only a sealed box and greater then 65 for a ported box. EBP 45 56 44 Dimensions 8 5/8" 10 7/8" 0.4 9 5/8" 13 3/4" 0.7 Depth Hole Displacement 8 1/4" 8 7/8" 0.25 Audiobahn Box Specifications All ports listed are circle ports unless otherwise stated. Surface area of a circle port = (3.14) X (radius) (squared) Remember to build your box to the total volume, not just air space, as total volume includes all displacement. Model # AWES10P AWES12P AWES15P Space Saver Bass Design Ported Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 0.7 2.5 x 10.25 20.25 33.34 40 0.25 0.035 1 1 3 x 11.25 14.16 34.84 38 0.4 0.054 1.5 1.6 4 x 11.75 10.36 32.36 38 0.7 0.097 2.25 Everyday Bass Performer Ported Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 1.1 3 x 12.25 17.67 28.82 35 0.25 0.059 1.5 1.95 4 x 11.25 29.06 12.06 35 0.4 0.093 2.5 2.95 (2) 4 x 15.5 7.55 28.05 35 0.7 0.255 3.75 (Not Designed for Competition) Ultimate SPL Bass Box Ported Air Space (Cu. Ft.) Port Size (Inches) Port Vel. (%) -3dB (Hz) Tune Freq. (Hz) Sub Disp. (Cu. Ft.) Port Disp.(Cu. Ft.) Total Vol. (Cu. Ft.) 2 4 x 11 13.85 27.96 35 0.25 0.09 2.5 2.8 (2) 4 x 16.5 7.64 27.98 35 0.4 0.27 3.5 4 (2) 4 x 10 9 27.36 35 0.7 0.125 4.75 A port velocity of 20% or under is good for everday use and 5% or under for SPL competition . Port velocity An EBP of less then 45 is SUGGESTED for only a sealed box and greater then 65 for a ported box. EBP 56 Model # AWES10P 0.5 1.25 82.04 45 AWES12P 0.75 1.75 84.37 44 AWES15P 1.5 3 84.54 NR = (Not Recommended) The larger a sealed box is, the lower the sub will play, but the less power it will handle. The smaller a sealed box is, Sealed Minimum (Cu. Ft.) Maximum (Cu. Ft.) SPL (dB) All sealed boxes already include the displacement for the subwoofer. AWES10P S p a c e S a v e r E v e r y d a y U l t i m a t e 9 AWES12P S p a c e S a v e r E v e r y d a y U l t i m a t e 10 AWES15P S p a c e S a v e r E v e r y d a y U l t i m a t e 11 Enclosures And Setup Building an Enclosure To work properly, the walls of the enclosure must be rigid and not flex when subjected to high pressure generated by the speaker's operation. For optimum performance, we recommend using 3/4" MDF (Medium Density Fiberboard) and internal bracing. The enclosure should be glued together along with support of screws or nails. Because MDF is porous, it is suggested that you seal the outside with polyurethane prior to painting or carpeting. Calculating Volume Calculating is merely a matter of measuring the dimensions in inches, and using the following formula: Box Volume = (Height) x (Width) x (Depth) divided by 1728. This will give you the volume of the box in cubic feet. If two facing sides are uneven length, add them together, and divide by 2 to take the average. Using this number will give you the volume without the necessity of calculating the box in sections, and adding the sections together. The thickness of the baffle material reduces the internal volume so this must be subtracted from the outside dimensions to determine the internal volume. The amount of air displaced by each model is listed on the specifications sheet in this manual and should also be subtracted from the gross volume calculation. All box parameters include displacement for ports and subs. These specs do not include the volume of the material used to build the box, so this must still be factored into the calculation. Subwoofer Crossover There are two operational types of crossovers, passive and active. Passive crossovers (coils and conductors) are placed on the speaker leads between the amplifier and the speaker. An active crossover is an electronic filter which separates the audio signal fed to different amplifiers. For optimum subwoofer performance, we recommend using an active 80-100Hz low pass crossover at 12dB/ ...