The Alpha P3 is a small two-way bookshelf speaker that connects to any stereo or home theatre system to fill the room with powerful, crystal-clear sound. Featuring a custom 4” (102mm) woofer and aluminium dome tweeter that uses a waveguide to perfectly match the low and high frequencies for a smooth transition, the P3 delivers improved directivity and flattens the frequency response for a more natural sound. It also leverages specially textured woofer cones and a unique port tube design that uses bass flex to add back energy and extend the bass frequencies even lower and without any distortion.
Hear beautiful texture and detail
All
new Alpha Series models employ a ¾” (19mm) black anodized aluminium
dome tweeter that extends the high-frequency response beyond the Alpha’s
original measurements and minimizes distortion for a rich, balanced
listening experience. A waveguide on the front of the tweeter works to
perfect on and off-axis performance while smoothing the response for
improved resolution and detail. The ferrofluid cooled tweeter on the P3
has also been precision engineered to sit below the woofer to provide
precise stereo imaging at any height.
Powerful woofer with dual layer voice coils
At
the heart of every good speaker is a great woofer that produces low
distortion and high output levels. With the new Alpha Series, the 4”
(102mm) woofer employs dual layer voice coils with a very powerful
magnet structure and a cone that is made from a special textured
polypropylene compound that prevents breakup. With bass reflex loaded
through Paul’s original port tube design from the ’70s, the woofer adds
back wave energy to extend the bass response and improve efficiency down
to 43Hz.
Custom-built and perfected
The Alpha
Series’ new crossover wasn’t custom designed to simply just direct low
and high frequencies to the woofer and tweeter. It was re-engineered to
control the directivity and flatten the frequency response while
utilizing an unusually complex Acoustic Linkwitz-Riley filter design
that is designed to get a perfect blend between the drivers and keep
distortion at its lowest even at high volumes.
Unique modular cabinet design
The
P3 has a unique combination of wall thickness and bracing to control
resonances and provide a perfect platform for the driver components. The
P3 cabinet’s internal damping material was first used in PSB’s most
high-end models, and has now been adopted by the Alphas and positioned
precisely for optimum effectiveness. A premium woodgrain vinyl finish
and chrome front baffle highlights combine with magnetically attached
grilles to provide a rich and timeless design.
On Axis @ 0° ±3dB
57-21,000Hz
On Axis @ 0° ±1 1/2dB
67-20,000Hz
Off Axis @ 30° ±1 1/2dB
67-10,000Hz
LF Cutoff -10dB
43Hz
Anechoic Chamber
85dB
Listening Room
87dB
Nominal
8 Ohms
Minimum
4 Ohms
Recommended
10 – 80 Watts
Program
60 Watts
Tweeter (Nominal)
3/4” (19mm) Black Anodized Aluminium Dome with Ferrofluid and Neodymium Magnet
Woofer (Nominal)
4” (102mm) Textured Polypropylene Cone with Rubber Surround
Crossover
3,000Hz, L4
Internal Volume
0.11 cu ft (3.1L)
Design Type
Tuned Port Bass Reflex, 1 3/8” (35mm) Rear Port
Size (W x H x D)
5 1/8” x 8 5/8” x 6 7/8”*
(130 x 220 x 174mm)
Weight
4.9lb (2.2kg)/each
11.45lb (5.2kg)/pr
Finish**
Black Ash
Walnut