Rockford-fosgate RFA-410 User Manual download pdf (Page 4)

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PUNCH AUDIOPHILE WOOFER CONTENTS

Punch Audiophile Woofer

Punch Audiophile Woofer manual

Kevlar® is a registered trademark of E.I. DuPont de Nemours & Co., Inc.

INTRODUCTION

This manual provides information on the construction, installation

and operation of the Punch Audiophile Woofers. We suggest you save

this manual for future reference.

The Punch Audiophile woofers are a full line of low frequency drivers

in 8", 10", and 12" sizes; in 4 or 8 ohm impedance. They are designed

for use primarily in small, sealed enclosures. By utilizing the latest

materials and construction techniques, we are able to offer a speaker

with good, low frequency response while requiring a minimum of

operating space.

DESIGN FEATURES

Cone – The cone material used is spruce pulp paper reinforced with

Kevlar® fiber (8" and 10" only). This provides the necessary combi-

nation of weight and strength and allows high levels of output without

cone break up. The cone is treated with a water resistant Polyvinyl

Acetate Emulsion (PVA) which increases the cone rigidity and lowers

distortion.

Vented Pole Piece – To allow operation at reasonably high power

levels, ventilation is needed. This is done through the use of a vented

pole piece. The venting allows fresh air to circulate and remove the

built up heat from the voice coil assembly.

Suspension – The suspension holds the cone to the basket and

supports the voice coil in the magnetic gap. The suspension should

allow the cone to move in and out freely but not allow side to side

motion. The Punch Audiophile woofers all use a Nitrile rubber

surround for the front and a flat spider design for the rear. This

combination takes full advantage of the Kevlar® cone's stiffness

allowing clean, uncolored reproduction.

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Rockford-fosgate RFA-410 User Manual Page 4