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Infinity Primus PR9613IS

Primus Series 6"x9" 3-way car speakers

Item # 108P9613IM

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the...

Find what Fits your vehicle

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the...

Item # 108P9613IM

In stock

Deeply discounted installation gear

C$189.99 pair

About the Infinity Primus PR9613IS

Treat yourself to an upgrade

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the excitement back to your drive. Install Infinity's Primus PR9613is 6-1/2" 3-way speakers in your doors and say goodbye to the uninspired vocals, muddy cymbals, and flabby bass of your factory sound. Lifelike vocals, crisp cymbals, and well-defined bass await you. What new playlists will you create to put these awesome speakers to the test?

Treat yourself to an upgrade

When the thrill of owning a new (or new-to-you) car wears off, there's one sure-fire way to bring the excitement back to your drive. Install Infinity's Primus PR9613is 6-1/2" 3-way speakers in your doors and say goodbye to the uninspired vocals, muddy cymbals, and flabby bass of your factory sound. Lifelike vocals, crisp cymbals, and well-defined bass await you. What new playlists will you create to put these awesome speakers to the test?

Edge-driven tweeter design

Infinity employs an edge-driven design in their soft dome tweeter for a smoother, more open response and minimal distortion at high volume. With the addition of a piezo supertweeter in this 3-way speaker, prepare for a more clearly defined soundstage as the details in your music come alive.

Famous Plus One+ technology

This Primus polypropylene woofer delivers solid, punchy bass, thanks to Infinity's proprietary Plus One+ woofer design. Infinity extends the cone right up to the edge of the basket, giving you lots of surface area — and a bigger cone means more bass when your music needs it.

Make the most of your power

Infinity's special "true 4-ohm architecture" uses a low-impedance voice coil to safely draw extra power out of your factory radio, aftermarket stereo, or an external amplifier, so you'll get a stronger clearer sound. Grilles are included.

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Product highlights:

  • 6"x9" 3-way car speakers
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • edge-driven, textile dome tweeter and piezo supertweeter
  • 2.7-ohm impedance for extra power (compatible with virtually all factory or aftermarket car stereos)
  • handles up to 90 watts RMS (270 watts peak power)
  • frequency response: 46-21,000 Hz
  • sensitivity: 89 dB at 2.83 volts
  • top-mount depth: 3-1/8"
  • grilles included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PR9613ISAM

What's in the box:

  • Two 3-way speakers
  • 2 Grilles
  • 2 Grille frames
  • 2 Bottom mount brackets
  • Eight 2" Screws
  • 8 Speed clips
  • 2 Adhesive backed foam gaskets
  • Template on box
  • Installation manual

Customer reviews

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Infinity Primus PR9613IS reviews

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82 reviews

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Crutchfield response

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More details on the Infinity Primus PR9613IS

Pat M.

Features & specs

General
Speaker Size 6X9
Design 3-way
Tweeter Design Edge-Driven Dome
Impedance (Ohms) 2.7
Tweeter Composition Textile
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 89
Frequency Response 46 - 21k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 90
Peak Power Handling (Watts) 270
Top-mount Depth (Inches) 3 1/8
Bottom-mount Depth (Inches) 3 11/16
Cutout Diameter or Length (inches) 0
Mounting Height (Inches) 0.573
The Infinity Primus PR9613IS replaces these items:

Product Research

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.

Impedance: The Primus Series speakers feature 2.7Ω 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 lower impedance load.

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Customer Q&A

5 questions already asked

Q
I ran 4 off these in my 2020 Ram 1500 with the alpine system. I just wanted to upgrade my speakers and now the rears scream and the front driver and passenger barely make noice. Is it the anc? The three highs on the dash scream as well!??? ? I also installed the factory back to test and they sound like ?? too!!
[ 19kilo  Sep 11, 2021 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Kenny  Sep 13, 2021 ]  Staff
Q
What would be the Ohm load with 4 of these wired to a R2-500x4?
[ Adam  Jun 02, 2021 ]
1 answer
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
[ Calvin  Jun 18, 2021 ]  Staff
Q
Can you run them with factory tweeters together wired paralleled in tacoma front doors?
[ Chad  Apr 22, 2021 ]
2 answers
A
I disconnected mine. The ohm load was too much for the amp I'm running
[ Michael  Apr 22, 2021 ]
A
It is possible but you'll have to verify your ohms are correct for your amp or stereo. The tweeters in these Infinity Primus 6x9s are f-ing amazing so I would bag those factory tweeters as they will most likely detract from the sound of these speakers.
[ Dan  Apr 22, 2021 ]
Q
Should I run an amp?
[ Dakota  Dec 02, 2020 ]
3 answers
A
Yes I have these in my truck and they are starved for power. They sound ok but could use some extra juice.
[ Michael  Dec 02, 2020 ]
A
Not necessarily you can use your cars current system
[ ruth  Dec 02, 2020 ]
A
Yes run a small amp (100 rms/ channel), because most head units don't emit enough power alone to make these good.
[ Christopher  Dec 02, 2020 ]
Q
Is the 99.95 for two speakers or just one?
[ Lulu3  Jun 26, 2020 ]
4 answers
A
It's for the pair. They sound good through just the head unit, but they need a little amp to really push em.
[ Andrew  Jun 27, 2020 ]
A
Two
[ Chad  Jun 27, 2020 ]
A
Hi, the speakers you're asking about comes in pairs.
[ Christopher  Jun 27, 2020 ]
A
Two
[ Joe  Jun 27, 2020 ]
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C$269.99 pair
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High sensitivity

The Infinity Reference REF-9633ix offers these features:
  • sensitivity: 94 dB
  • handles up to 100 watts RMS (300 watts peak power)
  • 1" edge-driven, textile dome tweeter; textile semi-dome supertweeter
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