*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 tun

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 warra

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. *Can 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 ven

This will allow a test of the speaker before securing it to its permanent location. CAUTION: Make sure that all wiring is fully protected from cuts, tears and possible wear. Any short circuit developing as a result could severely damage the source unit or possibly the amplifier. Make sure all wires easily reach the amplifiers terminal with no stress on the wires or connectors. MOUNTING: 1. Confirm the mounting location by inspecting the area where the enclosure will be mounted. 2. Before screwin

The drive unit suspensions will also loosen up during the first hours of use. The time taken for the speaker to achieve its intended performance will vary depending on previous storage conditions and how it is used. As a guide, allow up to a week for the temperature effects to stabilise and 15 hours of average use for the mechanical parts to attain their intended design characteristics. However, longer run-in periods (as long as a month) have been reported and there is evidence to suggest that

Please read this manual fully before unpacking and installing the product. It will help you to optimise its performance. B&W maintains a network of dedicated distributors in over 60 countries who will be able to help you should you have any problems your dealer cannot resolve. Environmental Information XB&W products are designed to comply with international directives on the Restriction of Hazardous Substances (RoHS) in electrical and electronic equipment and the disposal of Waste Electrical a

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 comp

Double Stack Magnet Rated at 900 Watts RMS 92dB Efficiency Frequency Response of 28Hz to 500Hz Dual 4 ohm 2 1/2” Voice Coils 8-Gauge Sure-Lok Input and Output Terminals (Patent Pending) Mounting Dimensions — Depth: 168mm / 6 5/8” Through Hole: 275mm / 10 7/8” Diameter: 312mm / 12 5/16 PSW815E 15” ALPHA 800 SERIES SUBWOOFER Proprietary Cast Aluminum Alloy Machine Cut “Alpha” Basket Proprietary Cooling Rings for Motor Assembly (Patent Pending) Kevlar® Reinforced Composite Balanced & Laminated Cone