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Infinity Primus® P153

Bookshelf speaker

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  • Infinity Primus® P153

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  • Infinity Primus® P153

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Item #: 108P153BK
 

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$109.99
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Our take on the Infinity Primus® P153

by Kristen Schaub
Infinity

Why choose bookshelf speakers?

Bookshelf speakers may be small in size, but they can deliver surprisingly big sound. Some ultra-compact models even fit on a desktop. Most are right at home in tight spaces like shelves, so they're usually good choices for your home theater's rear channels. For the best performance, try placing bookshelf speakers on solid speaker stands to help the sound really "open up." If you want full bass impact, add a powered subwoofer and enjoy punchy sound that's as deeply satisfying as that of floor-standing speakers.

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.

Exclusive Infinity Metal Matrix Diaphragm drivers
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.

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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

Hands-on research from the Crutchfield Labs (what are the Labs?)

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

Download owner's manual

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

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.

 
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Infinity Primus® P153 Reviews

Average Customer Review:

6 people say:

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Filter by rating:
5 out of 5

NICE!

Written By Mike, Baldwinsville, NY on Tuesday, September 02, 2014
Crutchfield Customer Review (What's this?)
 
Nice sound.....compact and a room saver
Was this review helpful?    Yes | No
 
5 out of 5

Great speaker

Written By Christopher M., Connecticut on Sunday, May 11, 2014
Crutchfield Customer Review (What's this?)
 
I initially purchased these speakers for my front sound stage. I loved them but then upgraded to the P163's. I kept the speakers and use them for my surrounds. They're bigger than some surrounds but they're not ostentatious by any means. They produce great sound. Everything is clear and crisp. I love them.

Also if you wanted to, you could add banana plugs to the rear inputs. There are two plastic pieces that sit into binding posts. You can use a small flat head screwdriver to "pop them out". Just make sure the screws are completely tighten for easier access.
Pros:
 Great price  Look good; not too big  Sound
Cons:
None that I can think of.
1 out of 1 people found this helpful
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5 out of 5

Infinity Primus® P153

Written By Ed, Goodyear az on Monday, June 24, 2013
Crutchfield Customer Review (What's this?)
 
I use the p153 for my rear surround speakers and they work great . They have a good bass response and also have a brighter overall sound then my old infinity book shelve speakers.
Pros:
Packed carefully. Worked right out of the box with no hassle Great sound looks good too.
Cons:
none
1 out of 1 people found this helpful
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5 out of 5

Excellent for the value

Written By Highstreet, Houston, Texas on Saturday, March 30, 2013
Crutchfield Customer Review (What's this?)
 
Have owned Infinity speakers since the 70's and their P153 is another excellent addition to their reputation. Great range, clear concise and strong both for individual listening enjoyment of playing to a room full of people. Thanks Infinity for keeping up the quality and value.
2 out of 2 people found this helpful
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5 out of 5

Infinity Primus® P153

Written By Anonymous, Lithia Springs, GA on Saturday, February 09, 2013
Crutchfield Customer Review (What's this?)
 
Was searching to replace aged infinity bookshelf speakers & these were hands down the best buy.
Pros:
They compliment the existing infinity speakers & deliver quality center channel volume.
Cons:
N/A
1 out of 1 people found this helpful
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4 out of 5

Love Infinity

Written By Luh P, NV on Monday, July 02, 2012
Crutchfield Customer Review (What's this?)
 
I love infinity speakers. Infinity speaker where in my grandma's 93 Chrysler and I love to play them as loud as she would let me. When I noticed many moons ago the infinity home speakers years ago. I instantly made my selection. They are priced right, work properly and blend in well in black paint and grille. They are another motivation to leave apts. Five minutes from the box to your ears
Pros:
Even though the other speakers attached to my Yamaha RX-V365 are a couple years old, they fit in seamlessly. They can handle the watts, I see from the few time I pushed them above apt. levels.
Cons:
They may not be high and sound like Bose, Thiel, Monitor, etc. Though they can definitely bring home theatre to your living room or mancave.
6 out of 14 people found this helpful
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2 questions already asked

I want to install book shelf spkrs for my rear surround....I m little confused in Polk audio tsi 100 or infinity p153....pls advice which one better in sound quality??? In same price [ Atif  Jul 21, 2014 ]
1 answer
  • 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 Staff  Jul 21, 2014 ]
I purchased these bookshelf speakers from you a little while back and love them. Can you recommend a pair of speaker stands for them? [ Jason  Jan 31, 2014 ]
1 answer

Add accessories for the Infinity Primus® P153

You'll need speaker wire to connect your speakers to your amp or receiver. No wire is included with this speaker. See all categories & accessories

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Monster XP Mini Twist-on Pin Connectors 4 pair, 16-gauge (4 pair)
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AudioQuest X2 Speaker Cable 14-gauge cable, connectors optional (30 feet, Gray)
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AudioQuest G2 Speaker Cable 16-gauge cable, connectors optional (30 feet, Gray)
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Monster XPHP™ MKII Speaker cable with clear jacket (100 feet)
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Monster XP® Speaker cable with clear jacket, connectors optional (100 feet)
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Monster XP® Navajo White MkII Speaker cable (50 feet)
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Sanus BF24B Speaker Stands Basic Foundations® — 24"
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Sanus NF24 Speaker Stands Natural Foundations Series IV — 24" (Black lacquer)
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Bell'O SP-224 24" speaker stands
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Pinpoint AM-41 Side-clamping speaker wall mounts
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For a more in-depth review and enhanced detailed information on the Infinity Primus® P153, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_108P153BK/Infinity-Primus-P153.html ).

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      • Metal Matrix Diaphragm® drivers minimize distortion
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