Rockford Fosgate PWR-54/58 - Manual (Page 4)

P
UNCH
P
OWER
M
IDRANGE
C
ONTENTS
I
NTRODUCTION
1
1 Pair of Midrange Speakers
Mounting Hardware Grilles (excluding 3")
This manual contains information on the features, installation and
operation of the Punch Power midrange speakers. We suggest you
save this manual for future reference.
The Punch Power midrange speakers are designed and constructed to
provide the discriminating listener the benefits of superb sonic
accuracy and high levels of sonic output without compromising
power handling. Modern engineering and manufacturing techniques,
combined with the use of space age materials, allow us to offer a
speaker which achieves performance and reliability previously
unattained.
Woven Kevlar® Cone – The Punch Power midrange speakers use a
woven Kevlar® material. The woven Kevlar® is a lightweight, rigid
material ideally suited to midrange speakers. The rigidity resists
deformation in operation and the light cone mass allows quick
response to the changing electrical signals. This combination makes
for a speaker with low distortion, extended flat frequency response
and clean sound.
Suspension – The suspension holds the cone to the basket and centers
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 Power midrange speakers all use a Thermo Plastic Rubber
(TPR) surround for the front suspension and a flat design spider for the
rear suspension (except for the PWR-34 AND PWR-38). This combi-
nation takes full advantage of the Kevlar® cone's stiffness allowing
clean, uncolored reproduction even at high listening levels.
Ferrofluid Cooling – Ferrofluid is a magnetic liquid which adds to the
speaker's thermal capacity. When injected into the speaker's magnet
gap, it flows to fill the cavity and is held in place magnetically. This
forms a thermally conductive path which prevents excessive heat
build-up in the voice coil, allowing for increased power handling.
D
E S I G N
F
E AT U R E S
Kevlar® is a registered trademark of E.I. Dupont D.E. Nemours and Company.