Pioneer Super Tuner III D DEH-3150UB Brochure page 39

GET CLOSER TO NATURE—
NEW OPEN & SMOOTH SOUND
With their extra-wide directivity, low tweeter crossover frequency and distortion, plus light, rigid IMPP cones,
Pioneer's PRS speakers realize a level of in-car audio quality that deserves its own name: "Open & Smooth"
sound—a wide-open sound staging, rich, natural midrange and tweeter output with outstanding
smoothness and linearity.
TS-C171PRS
17 cm Packaged Component Speaker System
• 17 cm woofer
• 28 mm lightweight soft-dome tweeter
• Shallow mount adapters included
Common Features
• 3-layer aramid fiber with IMPP composite
cone
• High density micro fiber surround for
smoother response
• Short voice coil & wide magnetic field design
for symmetric & linear cone motion
• Dual OFC short ring for reduced distortion
PRS Speakers
TS-C171PRS TS-C131PRS TS-M171PRS
Pioneer advances the proud heritage of its IASCA (International Auto Sound Challenge
Association) award-winning Premier Reference Series. These speakers' superior
response, linearity and sound directivity improve low- and mid-frequency
reproduction, while making highs and lows sound smoother and more open.
PRS Speaker (Tweeter) Cross Section
Absorbent
Protector
Soft-dome diaphragm
PRS Speaker (Woofer) Cross Section
3-layer aramid fiber with
IMPP composite cone
Micro fiber surround
Dual OFC short ring
Aluminum die-cast
bottom hold one-piece
rigid chassis
Overhung thick plate
TS-C171PRS
200 W Max.
• Maximum input: 200 W
• Nominal input: 50 W
• Aluminum die-cast bottom hold one-piece
rigid chassis
• Aluminum die-cast center plug
• Cancel magnet design for extremely high
density magnetic field
• Rear chamber for lower crossover frequency
• Aluminum die-cast tweeter chassis
TS-S101PRS TS-T031PRS
Cancel magnet
Aluminum flange and
back cabinet
OFC short ring
Back chamber
Main magnet
Aluminum die-cast center plug
Ø1-7/8" (48 mm)
large-diameter voice coil
Voice coil with short winding length
Superior Directivity: Pioneer PRS Speakers
Pioneer PRS speakers always maintain more open, smooth,
expansive, multidimensional sound, without the dramatic
dips and inconsistencies that lesser speakers can produce
when angled in certain directions.
Pioneer PRS Speaker
TS-C131PRS
13 cm Packaged Component Speaker System
• 13 cm woofer
• 28 mm lightweight soft-dome tweeter
• Surface (angled), flush or invisible tweeter
mounting kit
• Audiophile-grade outboard crossover
network included with –12 dB/oct. LPF/HPF
• Protection circuit and 3-step tweeter level
adjustment
• Gold-plated screw-type terminals
Micro Fiber Surround: Maximum Musical Response
The strong, high-density micro fiber material surrounding the woofer of a PRS speaker
is very light and low in resistance and internal loss characteristics. This enhances
linearity of the short winding length of the voice coil, thereby optimizing efficiency.
Moreover, micro fiber doesn't stretch so it does a better job than other materials to
control vibration and enables higher power input.
The result is faster response and more accurate
bass reproduction that allows all
music to be heard to greatest
advantage.
Polyester fiber
(polyurethane resin)
Magnified cross section view
2nd-Generation Multilayer Cone: First-Class Sound Reproduction
For the PRS speakers, Pioneer also developed a multilayer woofer cone in an even
better formulation, sandwiching composite foamed IMPP using interlaced aramid fiber
between a woven carbon-blended aramid fiber layer and a glass fiber layer. This rigid
cone structure provides impeccable midrange frequency reproduction and overall
sound quality. The cone material is also supremely light and uniform in its physical
properties because it is made without adhesives
using an advanced injection molding process.
Aramid fiber layer
Composite foamed IMPP using
interlaced aramid fiber
Glass fiber layer
Magnified cross section view
Other Manufacturer's Speaker
Rear view
150 W Max.
• Maximum input: 150 W
• Nominal input: 30 W
TS-C171PRS/TS-C131PRS
Tweeter Specifications
• Dimensions (W × H × D):
ø55 mm × 27.1 mm (surface mount)
• Mounting depth: 12.2 mm
• Cut-out dimensions: ø47 mm
* See page 63 for woofer dimensions.
0.6
Better sound
0.5
Rubber
0.4
Micro fiber
0.3
0.2
Cloth
0.1
Urethane
0
0 0.2 0.4 0.6 0.8 1.0
Specific gravity
2.50E+04
Better sound
2.00E+04
New PRS
speakers
1.50E+04
1st-generation
1.00E+04
0.50E+04
Conventional
material
0.00E+04
0.01
Internal loss
Physical properties of cone materials
Dip
1.2 1.4
0.1
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