ALPHASONIK Owner's Manual PSW912 / PSW915 R
S E T T I N G T H E P A C E S I N C E 1 9 7 6 ALPHASONIK WAS FOUNDED IN 1976 WITH ONE MISSION, TO 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.
Introduction.................................................................................3 Features and Specifications........................................................4 Building an Enclosure............................................................5-10 Subwoofer Parameters.............................................................11 T A B L E O F C O N T E N T S Wiring Diagrams..................................................................12-14 Troubleshooting............................
I N T R O D U C T I O N Thank 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.
All Alphasonik 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 aluminum, machine finished heat sinks.
Now that you know 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).
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 disadvantages of the two enclosures.
Calculating speaker enclosure volume is a five step procedure. (Make sure you do not forget to subtract the thickness of the wood that you 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.
Building and calculating a wedged enclosure is a little more difficult then the previous type of enclosures. Calculating a wedged enclosure volume is a 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 Step Seven: Divide the results were in step six by 1728 (12 x 12 x 12=1728 which equals to 1.0 cu. ft.
B U I L D I N G A P O R T E D E N C L O S U R E Calculating speaker 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.
Converting a 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" 2" 2" 4" Port 2 x 2 x 3.14=12.6 1" 12.6 x 1=12.6 Slot Port 12.
S U B W O O F E R P A R A M E T E R S 900 Series Model # Fs Qts Qes Qms Vas (liters) Vas (Cu. Ft.) Re Rms Xmax +/- (mm) Le Sd SPL EBP Mmd Freq. Resp. PSW912 PSW915 35.008 0.374 0.336 1.485 19.596 0.567 2.2 x 2 2200 14.5 2.042 53 93 104 165.792 24Hz-700Hz 32 0.557 0.621 5.44 108 3.81 2.1 x 2 2500 15 1.98 129 in^2 98 52 175 20Hz-700Hz Mounting Dimensions Depth (mm) Depth (Inches) Through Hole (mm) Through Hole (Inches) Diameter (mm) Diameter (Inches) Displacement 222mm 8.
W I R I N G D I A G R A M S Parallel-Parallel 0.33 ohms 0.
W I R I N G D I A G R A M Series-Parallel 1.
W I R I N G D I A G R A M Series-Series 12 ohms 8 ohms 4 ohms Patent No: US D478,556 S Patent No: US 6,601,645 B1 Patent No: US 6,656,000 B2 14
T R O U B L E S H O O T I N G SYMPTOM CHECK POINT CURE No sound Is the amplifier power LED illuminated? 1. Check fuses in amplifier 2. Check turn-on lead 3. Check signal leads 4. Check gain control 5. Check source unit volume 6.
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.
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