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Infinity Primus P153

Bookshelf speaker

23 Reviews | 2 questions - 2 answers

Item # 108P153BK

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Overview

Our take on the Infinity Primus P153

Once you hear the warm, rich sound of Infinity's Primus P153, you won't believe you got away with paying so little for it. With its Metal Matrix Diaphragm® driver technology and low-resonance enclosure, you'll hear music exactly as it was recorded. The Primus P153 produces sparkling high frequencies and detailed midrange from any type of music, at any volume level. And for a compact bookshelf speaker, the bass might just surprise you. So sit back, relax, and enjoy the lifelike vocal tracks, sophisticated percussion, and robust instruments that envelop and excite you.

Amazing sound from a bookshelf speaker

Infinity Primus P153 bookshelf speaker

The Primus P153 delivers rich, full sound without taking up too much space.

Once you hear the warm, rich sound of Infinity's Primus P153, you won't believe you got away with paying so little for it. With its Metal Matrix Diaphragm® driver technology and low-resonance enclosure, you'll hear music exactly as it was recorded. The Primus P153 produces sparkling high frequencies and detailed midrange from any type of music, at any volume level. And for a compact bookshelf speaker, the bass might just surprise you. So sit back, relax, and enjoy the lifelike vocal tracks, sophisticated percussion, and robust instruments that envelop and excite you.

High quality materials for long term performance 

The Primus P153 features Infinity's exclusive Metal Matrix Diaphragm ("MMD" for short) driver technology in both the 3/4" tweeter and 5-1/4" woofer. These MMD drivers consist of a stiff aluminum core, anodized on both sides for increased strength and rigidity. The result is extremely fast, extremely accurate response, giving you distinctly cleaner, more realistic sound, even at higher volume levels.

Build your own Primus® system

The Infinity Primus P153 will fill just about any room with dramatic and well-defined sound. Pair it with Infinity's P363 floor-standing speaker and PC251 center channel speaker to create a stunning Primus home theater system. And don't forget to add the perfectly matched PS38 powered subwoofer to get deep, accurate bass in the mix.

I haven't even opened these up. I'm sure they will work, just fine. You did not try an over-sell me. I appreciate your consumer awareness. Will I use you again? But of course.

Rick H., kalispell, MT

What's in the Box:

  • 2-way bookshelf speaker
  • Black cloth grille (installed)
  • 4 Self-adhesive rubber feet
  • Owner's Manual
  • Warranty sheet

Product Highlights:

  • frequency response 58-20,000 Hz (±3dB)
  • handles up to 100 watts
  • sensitivity 88 dB
  • 8-ohm impedance
  • Metal Matrix Diaphragm® drivers minimize distortion
  • 3/4" MMD tweeter
  • 5-1/4" MMD woofer
  • magnetically shielded for safe placement next to older tube TVs
  • bass-reflex (ported) design
  • black woodgrain vinyl finish
  • 5-way binding posts
  • keyhole slots for easy wall-mounting
  • 7-3/8"W x 13"H x 10-1/2"D
  • weight: 13.5 lbs.
  • warranty: 5 years
  • Our 60-day money-back guarantee
Reviews

Infinity Primus P153 Reviews

Average Customer Review(s):

(23 Reviews)
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Details

Hands-on research

Features and Specs

Enclosure Bass Reflex
Video Shielded Yes
Tweeter Type Dome
Tweeter Size (inches) 0.75
Midrange Size (inches) N/A
Woofer Size (inches) 5.25
Woofer Composition M.M.D.
Woofer Surround Rubber
Power Range 10-100
Sensitivity 88 dB
Impedance (Ohms) 8
Frequency Response 58-20k Hz
Connector Type 5-way post
Bi-amp Inputs No
Height (inches) 13
Width (inches) 7-3/8
Depth (inches) 10-1/2
Weight (pounds) 13.5
Mounting Bracket Included Keyhole
Recommended Stand Height (inches) 24-28
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research

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.

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 verify what’s in the box, 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.

Accessories
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

reviews, physical size, price [ Douglas  Jan 30, 2016 ]
Infinity makes great speakers. Have owned Infinity Book Shelves in the past staying with past quality. [ Tod  Jan 17, 2016 ]
Size and favorable reviews. [ kent  Jan 02, 2016 ]

2 questions already asked

Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Krissy  Jul 21, 2014 ]  Staff
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