AeroVent™ Pole Piece – The AeroVent™ provides ventilation for the voice coil for improved power handling. The AeroVent™ is aerody- namically shaped to allow passage of large amounts of air without constricting the air flow which can cause whistling or turbulence noise.
Suspension – The suspension holds the cone to the basket and suspends the voice coil in the magnetic gap. The surround, which supports the cone, is made from a dual laminate foam which minimizes edge deterioration. The proprietary flat spider design maintains linear motion of the voice coil even at high listening levels.
Voice Coil – The voice coil is wound on a large diameter anodized aluminum former for highly efficient thermal transfer. The large gauge high temperature copper wire allows operation at high power levels.
Cone – The cone is made of a heavy and rigid paper material which allows for very low frequency response and resists deforming when driven at high power levels.
LOW FREQUENCY SPEAKER SYSTEMS
The Punch Power Woofers require an enclosure to achieve optimum results. The enclosure allows the speaker to operate at lower frequen- cies with improved power handling. The two most commonly used types of low frequency speaker systems are acoustic suspension and bass reflex. The acoustic suspension enclosure, commonly referred to as a sealed box, relies upon the changing air pressure in a tightly sealed chamber for its operation. The bass reflex, commonly referred to as a ported enclosure, uses a vent inserted into the box which takes over for the speaker at a desired tuned frequency which is determined by the internal volume of the enclosure and the size of the vent used. The Punch Power Woofers will yield optimum performance in a small, ported enclosure.
USING THE PUNCH POWER WOOFERS
Speakers are built in different sizes to optimize their performance in different frequency bands. Crossovers are used to route the different frequency bands for each speaker. There are two operational types of crossover: active and passive. An active crossover is an electronic filter which is placed before the amplifier and separates the signal fed to different amplifiers in the system. A passive crossover is positioned
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