Alphasonik MAYHEM PSW915 User's Manual
Contents
1. Ed EIER TITAN TFT TRT e Tp Parallel Parallel 0 33 ohms 0 5 ohm 1 ohms Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 12 Series Parallel 1 33 ohms 2 ohms 4 ohms Patent US 0478 556 5 Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 Series Series Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 SYMPTOM No sound CHECK POINT Is the amplifier power LED illuminated Is the amplifier overload LED illuminated Check impedance with Ohm meter Check that the speaker moves freely CURE 1 Check fuses in amplifier 2 Check turn on lead 3 Check signal leads 4 Check gain control 5 Check source unit volume 6 Clean contacts on fuse holders Check speaker for short or amplifier for overheating If no reading replace speaker If speaker won t move replace speaker Speaker is making a rattling noise Check that speaker is secured properly and tightened with screws Check enclosure construction Check speaker polarity Tighten mounting screws Check that the enclosure is debris free Correct polarity No sound from one coil Check speaker leads Speaker is distorting at high Check speaker load impedance capabilities vol2. ALPHASONIK Owner s Manual _ 8 Sere ALPHASONIK WAS FOUNDED IN 1976 WITH ONE MISSION BRING STATE OF THE ART PERFORMANCE TO THE CAR AUDIO ENTHUSIAST In those early years we pioneered such ground breaking technologies as amplifier fan cooling and high voltage signal transfer which remain a benchmark in high end audio Today the new Alphasonik is committed to pushing the envelope with regard to technology quality and value Our electronics feature audiophile parts and circuit topology designed to let the full musical experience come through loud and clear Our loudspeakers employ the latest high technology materials and processes such as carbon reinforced woven glass and titanium vapor deposition to deliver your music with tremendous impact dynamics and resolution We stand behind our quality with one of the best warranties in consumer electronics Compare Alphasonik car audio products against anything competition has to offer We re confident you will come to one conclusion ALPHASONIK HAS NO EQUAL role Bie loin MERE Features and Specifications een Subwoofer 5 elei 0057 _ 4 2 sr Gera Disclaimer Me a me Tha
3. Step One KF 23 ei The wood that we are using 15 0 75 thick The 1 5 that you see in the formula is the thickness Step Three of the wood Side View To calculate the thickness of the wood Left Right 1 5 1 5 Front Back 1 5 15 x 2 1 50 21 5 x 13 5 x 12 3483 3483 1728 2 01 H 15 2 01 cu ft is the result for this enclosure 15 1 5 13 5 Formula to calculate port displacement 3 14 x Radius x Radius x Depth 1728 port displacement 3 14 x 2 25 x 2 25 x7 111 27 in 111 27 1728 06 is the displacement of the port 2 01 0 06 1 95 cu ft is the final result for this Patent No US D478 556 5 enclosure Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 Converting round port to a slot port Calculate the area of the round port s being used then use the square root function of your calculator to get the interior dimensions of an equivalent suare port The length or depth of the slot port will be the same as that of the round port To calculate area Area is a two dimensional measurement Circle 3 14 x Radius x Radius Circle Port 4 Port 2X 2 x 3 14 12 6 Slot Port Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 gt 11 Euel este 900 Series EE EES ese Slee Qes Qms Vas liters Vas Cu Ft Re Rms Xmax mm Freq Resp Depth
4. Step Seven Divide the results were in step six by 1728 12 x 12 x 12 1728 which equals to 1 0 cu ft Complete formula should look like this Top of Depth Bottom of Depth 2 Height Width x Depth 128 ess Step Two 13 5 1 5 12 13 5 Step One Fra u mnm The wood that we are using is 0 75 thick The 1 5 that you see in the formula is the thickness ofthe wood Step Three b Bi Calculating thickness of wood Measure how thick the wood is then multiply by two The reason that you are multiplying by two is each side of the enclosure Left Right 1 5 Side View ry Top Bottom 1 5 br 13 5 _ Front Back 1 5 13 5 7 5 21 21 2 105 15 2 1 50 18 x 12 x 10 5 2268 2268 1728 1 3 Patent No US D478 556 S Patent No US 6 601 645 B1 1 3 cu ft is the results for this enclosure Patent No US 6 656 000 B2 Calculating enclosure volume is a five step procedure Make sure you do not forget to subtract the thickness of the wood and port displacement that you used Step One Measure Height Step Two Measure Width Step Three Measure Depth Step Four Height x Width x Depth Step Five Divide the results in step four by 1728 12 x 12 x 12 1728 which equals to 1 0 cu ft Complete formula should look like this Height x Width x Depth 1728 Below are illustrated versions of all the steps that you should take FOR EXAMPLE ONLY Step Two 23 1 5 21 5 leds
5. mm Depth Inches Through Hole mm Through Hole Inches Diameter mm Diameter Inches Displacement Minimum Sealed Sensitivity dB Maximum Sealed Sensitivity dB OC Od Mg te 1 2 BR WE ie TE Fee RE En Fi TI DEAD 1 Et Get EEE 2152 a200 4 2500 15 2042 _ 1986 53 1291142 T Fi ZAHz 7004z Z0H2 70080 Mounting Dimensions 2220 er ae 8 75 276mm OET 7 71 a 1078 312mm Peng 12516 Pe Aj 4 Ft Sealed Enclosures 205 Ws Nn 1 25 ee Vented Enclosures Minimum Vented Pae 35 Te Internal Volume 2 316 MKE Port Dia Inches Port Length Inches 3dB Tuning Freq Port Displacement Maximum Vented Internal Volume Port Dia Inches Port Length Inches 3dB Tuning Freq Port Displacement Me SE gak ate 510 75 RT B EE EZ ei T ZE aA A Veal es FIFRE E 45 el Oe el B 0 157 A Pe MEEK TE urr Tea da al ese Ee Ba a Ee Mi EEE ee
6. nk you for purchasing this Alphasonik product Alphasonik products are specifically engineered and designed for the mobile audio environment This manual contains important information about installation set up procedures and integrating your new Alphasonik product into your vehicle With proper care and installation your new product will provide you with many years of high performance listening enjoyment We recommend having an Authorized Alphasonik Dealer install your new product for optimal performance and to take advantage of our warranty program Before installing your new product please read through the manual to fully understand the application Before making any electrical connections make sure that you disconnect the battery s ground cable to prevent the possibility of short circuits or damage to your electronic equipment your vehicle s stereo head unit comes with an Anti theft code DO NOT disconnect the battery If you have the access code for the stereo head unit please refer to the vehicle s owner s manual All 900 Series cast basket subwoofers feature our patent pending input and output terminals Configure voice coils or drivers in series or parallel with no fuss and no cramped or frayed wires Terminals are audiophile grade nickel plated machined brass compression fit with Allen head setscrews PROPRIETARY HEAT SINK Alphasonik 900 Series subwoofers have motor structures encased in patent cast alumi
7. num machine finished heat sinks Power handling is enhanced because excess heat is quickly absorbed and transferred to the environment CARBON FIBER KEVLAR CONE WITH ALUMINUM DUST CAP Alphasonik 900 Series subwoofers use our Ultra Light dual layer Carbon Fiber Cone with a Aluminum dust cone HIGH TENSILE STRENGTHDUAL LAYER SURROUND Alphasonik 900 Series subwoofers feature a massive 2 layer high travel surround for reliability and control at maximum excursion PSW912 12 ALPHA 900 SERIES SUBWOOFER Proprietary Cast Aluminum Alloy Machine Cut Alpha Basket Proprietary Cooling Rings for Motor Assembly Patented Kevlar Reinforced Composite Balanced 8 Laminated Cone High Tensile Strength Two Layer Surround for Enhanced Control Flat Progressive Rate Nomex Damper w Spiral Woven Leads 200 oz Triple Stack Magnet Rated at 2200 Watts RMS 93dB Efficiency Frequency Response of 24Hz to 700Hz Dual 2 ohm 3 Voice Coils 8 Gauge Sure Lok Input and Output Terminals Patented Mounting Dimensions Depth 222mm 8 3 4 Through Hole 276mm 10 7 8 Diameter 312mm 12 5 16 PSW915 15 ALPHA 900 SERIES SUBWOOFER Proprietary Cast Aluminum Alloy Machine Cut Alpha Basket Proprietary Cooling Rings for Motor Assembly Patented Kevlar Reinforced Composite Balanced amp Laminated Cone High Tensile Strength Two Layer Surround for Enhanced Control Flat Progressive Rate Nomex Damper w Spiral Woven Leads 200 oz Triple S
8. ou have selected to use to build your enclosure Step One Measure Height Step Two Measure Width Step Three Measure Depth Step Four Height x Width x Depth Step Five Divide the results were in step four by 1728 12 x 12 x 12 1728 which equals to 1 0 cu ft Complete formula should look like this Height x Width x Depth 1728 Below are illustrated versions of all the steps that you should take FOR EXAMPLE ONLY Step Two 13 5 1 5 12 Step One Or The wood that we are using 15 0 75 thick The 1 5 that you see in the formula is the thickness Step Three of the wood Side View Calculating thickness of wood Measure how thick the wood is then multiply by two The reason that you are multiplying by two is each side of the enclosure Left Right 1 5 re aldi gez Bottom 1 5 H 13 5 Front Back 1 5 13 5 1 5 12 15 2 1 50 18x 12 x 12 2592 2592 1728 1 5 Patent No US D478 556 S Patent No US 6 601 645 B1 1 5 cu ft is the results for this enclosure Patent No US 6 656 000 B2 Building and calculating a wedged enclosure is a little more difficult then the previous type of enclosures Calculating a wedged enclosure volume is 7 step procedure Step One Measure the Height Step Two Measure the Width Step Three Measure the Top and Bottom of the enclosures depth Step Four Add the depth together Step Five Divide the depth by two Step Six Height x Width x Results of step five
9. re it may be subjected to excessive heat moisture and dust or where it may be repeatedly kicked brushed or bumped Make absolutely sure that the terminals for the products are connected to the proper inputs and outputs from the music source Never run the wiring on the outside of the vehicle or under it where it can be damaged by road hazards or any moving parts of the vehicle Use existing wire channels sills panels and molding strips inside the vehicle to hide the wiring for safety and a neat appearance DISCLAIMER IMPORTANT Never cut any metal that is an integral part of the vehicle s safety or structural support system If you are unsure it is best to have the product professionally installed by an Authorized Alphasonik Dealer Never sacrifice your safety for sound COMPETITION AUTO SOUND CHALLENGE bd Gi emen MAIS ALPHASONIK INC 4 SOUTH BERRY STREET A 821 WANA El NESS ORK
10. s of the two enclosures Advantages of a sealed enclosures High power handing capability Great transient response Tolerant of minor enclosure size variation Easy to construct Smooth rolloff 12dB octave Disadvantages of a sealed enclosures Requires a woofer with a long excursion for better low bass frequency response have lower sensitivity than ported enclosures When using high power and small enclosures the woofer is not in an ideal cooling environment Less low bass as compared to a properly tuned vented enclosure above the ported tuning frequency Advantages of a vented enclosure Increased output around vented tuning Higher power handling above the port tuning frequency Extended frequency response Magnet is in a good cooling environment Handles higher bass frequencies with less distortion Disadvantages of a vented enclosure Vented enclosure transient response is not as good as sealed boxes because of the resonant effect of the vent tuning Midrange sound coming from inside the enclosure through the vent can produce unpleasant sound coloration Loss of cone movement control below vent tuning which can result in high distortion and mechanical failure of the driver Lower power handling below the port tuning frequency Calculating speaker enclosure volume is a five step procedure Make sure you do not forget to subtract the thickness of the wood that y
11. tack Magnet Rated at 2500 Watts RMS 98dB Efficiency Frequency Response of 20Hz to 700Hz Dual 2 ohm 3 Voice Coils 8 Gauge Sure Lok Input and Output Terminals Patented Mounting Dimensions Depth 247 65mm 9 3 4 Hole 361 95mm 14 1 4 Diameter 390 53mm 15 3 8 Now that you about subwoofer specifications it s time to learn about building subwoofer boxes If you ve done any woodworking you shouldn t have much trouble when building a subwoofer enclosure One of the main differences will probably be the material used in building subwoofer boxes as compared to other woodworking projects When building a custom subwoofer box you will want to use minimal MDF medium density fiberboard TOOLS REQUIRED TO BUILD AN ENCLOSURE Safety goggles Table saw or circular saw Powered screw gun Router or jig saw Variety of sizes of drill bits Wood glue Silicone Wood screws To ensure your safety while building an enclosure please read all manuals for the power tools you will be using as they will include valuable information on handling the tools and Safety tips If you re planning to build your own enclosure and are confused in what type of enclosure best suits your needs this page will help you choose what enclosure fits your needs There are many different types of enclosures The two most common used enclosures are sealed and vented enclosure This page will show the advantages and disadvantage
12. ume levels for the amplifier Verify that amplifier and or crossover settings are correct 1 Inspect for short circuits 2 Check for open connections Reverse left and right speaker leads to determine if it is occurring before the speaker Confirm that the speaker load impedance recommendations are followed Check the wiring configuration of the speakers To verify proper load impedance use an OHM meter to measure the total load for each channel of the amplifier Select low pass setting Investigate the layout of your vehicle thoroughly before drilling or cutting Take care when you work near the gas tank gas lines hydraulic lines electrical components and electrical wiring Do not use the equipment unmounted Attach this system securely to prevent damage particularly in the event of an accident or aggressive driving Do not mount the system so that wire connections are unprotected or are subjected to pinching or damage from nearby objects Before connecting or disconnecting power connections at the system power terminals disconnect the 12V DC wire at the battery end Confirm that your source unit and other equipment are turned off while connecting the input terminals If you need to replace the power fuse replace it only with a fuse identical to the provided fuse Using a fuse of different type or rating may result in damage to the system which is not covered by the manufacturer s warranty Do not install any product whe
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