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Infinity Primus PR9603is

6"x9" 3-way car speaker

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  • Infinity Primus PR9603is

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  • Infinity Primus PR9603is

  • Infinity Primus PR9603is

 

Our take on the Infinity Primus PR9603is

by John Pollard
Infinity

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Infinity Primus PR9603is

Enjoy your music again 

Vehicle manufacturers don't put much thought into stock stereo systems, and it shows. Uninspired vocals, muddy cymbals, and flabby bass are dead giveaways that you've still got stock speakers. Install a set of Infinity's Primus PR9603is 6"x9" speakers in your car and you'll notice a world of difference. Lifelike vocals, crisp cymbals, and well-defined bass await you, and cruising around town will be more enjoyable as you get pulled into your favorite tunes.

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Built with home audio know-how

Infinity used technology from their popular Primus home speakers to design car speakers that offer strong performance without breaking the bank. A 1" edge-driven, textile dome tweeter and a 5/9" piezo supertweeter broadcast smooth high frequencies while the oversized, Plus One+ polypropylene woofer creates solid bass. The speakers' 3-ohm impedance safely draws a little extra power out of your factory radio, aftermarket stereo, or an external amplifier, so you'll get a little more punch from your system. Grilles are included.

Highlights:

  • 6"x9" 3-way speakers (pair)
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • 1" edge-driven textile dome tweeter and 5/9" piezo supertweeter
  • 3-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
  • power range: 5-90 watts RMS (360 watts peak power)
  • frequency response: 46-22,000 Hz
  • sensitivity: 94 dB
  • top-mount depth: 2-3/4"
  • warranty: 1 year
  • Our 60-day money-back guarantee

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

Features and Specs
General
Design 3-way
Tweeter Design 1" Edge Driven Dome
Tweeter Composition Textile
Woofer Composition Polypropylene
Woofer Surround Butyl Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity 94 dB at 2.83 volts
Frequency Response 46 - 22k Hz
RMS Power Range (Watts) 5-90
Peak Power Handling (Watts) 360
Impedance (Ohms) 3
Top-mount Depth (Inches) 2 3/4
Bottom-mount Depth (Inches) 3 5/16
Product Research
What's in the box?

Download owner's manual

  • Two 3-way speakers
  • 2 Grilles
  • 2 Grille frames
  • 2 Bottom mount brackets
  • Eight 2" Self-tapping screws
  • 8 Speed clips
  • 2 Adhesive backed foam gaskets
  • Template on box
  • Owner's manual (English/ Portuguese)

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.

Features

Plus One Woofer Cones: The Plus One speaker cones offer more surface area than other speakers that fit in the same size opening. This is accomplished by using a new basket design and hi-roll surround. The result is greater bass output and an increase in efficiency.

Edge Driven Dome Tweeters: Each speaker has an edge-driven textile soft dome tweeter. An edge-driven tweeter has better dispersion characteristics and allows for a lower crossover frequency than typical tweeters of the same size, which improves imaging. The result is improved vocals and musical clarity.

3-ohm Voice Coil: The Primus Series speakers feature 3-ohm voice coils to compensate for the high in-line resistance of small gauge factory wiring and extract every watt from the factory receiver, increasing overall system output and efficiency (relative to 4-ohm speakers). The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers capable of powering a 2-ohm load.

Power Handling: Although Infinity lists the continuous average RMS power handling as 90 watts, they also list the recommended power range as 5-200 watts RMS. We've opted to list the more conservative 90 watt RMS figure on the specifications page.

 
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Infinity Primus PR9603is Reviews

Average Customer Review:

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5 out of 5

Sounds great

Written By Bubbie!, Walkersville, Md on Thursday, July 31, 2014
Crutchfield Customer Review (What's this?)
 
I love Infinity speakers. I have had a couple of sets in my vehicles. I even have Infinity's for my home theater setup. This car speakers are a major improvement over the factory speakers. Long-live Infinity.
Pros:
Great sound, good mid and high rage frequencys
Cons:
Not much bass response.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

wow

Written By ATA, rio rancho nm on Saturday, April 19, 2014
Crutchfield Customer Review (What's this?)
 
Simply amazing, cant believe how clear they sound.
Pros:
massive magnet
Cons:
none
1 out of 1 people found this helpful
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5 out of 5

Infinity Primus PR9603is

Written By Eugene R., Rocky Mount,NC on Monday, April 07, 2014
Crutchfield Customer Review (What's this?)
 
Exactly the product i wished for and delivered on time as promised. Excellent sound and easy to install made it a wonderful total package deal for me!
Pros:
Installations instruction very user friendly.
1 out of 1 people found this helpful
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5 out of 5

Good Product

Written By Pandiyan D., Nashik on Sunday, December 01, 2013
 
Actually we have purchase this product today and this was excellent with sound booster with good sound quality
2 out of 5 people found this helpful
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For a more in-depth review and enhanced detailed information on the Infinity Primus PR9603is, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_108P9603IS/Infinity-Primus-PR9603is.html ).