Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Driver Technology
Enclosure Design
Connections
Mounting Options
Driver Technology
Metal Matrix Diaphragm (M.M.D.): Derived from the C.M.M.D.
material used in Infinity's flagship Cascade series, M.M.D. features a stiff
aluminum core, anodized on both sides for increased strength and rigidity. M.M.D.
transducers conduct sound faster than paper, polypropylene, and Kevlar, pushing
unwanted resonances beyond the operating range of the transducer. M.M.D. drivers
deliver crystal-clear, distortion-free sound from dynamic digital sources, even
at high listening levels.
5-1/4" Woofer: The 5-1/4" M.M.D. cone woofer offers extremely
accurate midrange response for cleaner, more realistic sound. For a smoother
response and improved durability, the woofer uses rubber surrounds.
3/4" Tweeter: The speaker has a 3/4" M.M.D. dome tweeter that
offers superior stiffness and damping compared to traditional metal domes.
Acoustical Waveguide: The P153's tweeter utilizes an acoustical
waveguide to deliver, more even high frequency response, no matter what part of
the room you're in.
Precision Crossover Network: The speaker features a 2-way crossover system
with crossover frequency at 3300Hz. The crossover has a 24dB/octave slope.
Voice-Matched: The P153 is voice-matched to all the speakers
in the Primus line, so a complete matching system can be built.
Magnetically Shielded: The Infinity Primus bookshelf loudspeaker is
magnetically shielded for safe placement adjacent to your television.
Enclosure Design
Wood Grain Vinyl Cabinet:
The Infinity P153 features a black wood grain vinyl cabinet that matches almost
any decor.
Bass Reflex Design: The
Infinity Primus bookshelf loudspeaker utilizes a bass reflex enclosure with a
front-firing port for greater efficiency and bigger bass response.
Low Resonance Enclosure: The P153 employs a extremely low resonance
enclosure, so you hear the music exactly as it was recorded.
Grille: The speaker comes with a removable black cloth grille with
a rigid plastic frame.
Connections
5-Way Binding Posts: The 5-way binding posts will accept
bare wire, pin connectors, spade connectors, banana plugs, and dual banana
plugs.
Color-Coded: The speaker's binding posts are color-coded (red/black)
for easy identification between positive and negative.
Mounting Options
Rubber Feet: The speakers come with 4 rubber self-adhesive
feet for each speaker to help secure them in place to prevent slippage and
vibration.
Wall Mounting: The speaker has two keyhole slots in the
upper left and right corners of the back panel. In addition, two non-skid rubber
bumpers are attached in the lower corners so the speaker won't mar wall surfaces
when the speaker is mounted. You can also use the optional PinPoint heavy duty
side-grip wall-mounting bracket (121AM40B,
sold separately) to wall mount the speakers.
