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Product Details
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![]() | The Infinity Reference SeriesInfinity's Reference Series has been engineered to deliver best-in-class performance for those looking to replace or upgrade their factory speakers. Features like Infinity's Plus One (patent pending) woofer cones and edge-driven-dome tweeters have helped position Infinity Reference as the number-one line of automotive loudspeakers for the past six years straight. |
An ideal upgrade to your factory drivers. |
Plus One woofer cones
This patent pending technology deliver a cone with more surface area than competing models of the same size. The result is increased bass output and higher efficiency.
True Four Ohms
All Reference speakers feature two ohm voice coils. Original factory-installed speaker wiring in many cars is 18-22 gauge. This wire, and heating in the voice coil when power is applied, increase the impedance "seen" by the amplifier or head unit. The impedance of Reference Speakers has been adjusted to compensate for this increase and can be safely driven by any head unit.
Edge-driven textile dome midrange and tweeter
These are not commonly used w-domes, but fully-edge-driven domes like those found in better home audio speakers. The benefit is increased power handling and reduced distortion at high output levels. This technology also allows for better integration with the mid/woofer.
Unipivot
Infinity's Unipivot (patent no. 6,002,780) allows the tweeter to be pointed at the listener's location even when the speaker is mounted off axis. This optimizes the stereo image and ensures a more uniform response.
Tweeter level adjustment
The 9633cf also features a tweeter level adjustment located on the front of the speaker and can be set at the reference level of 0dB. If the speakers are located low in the doors or if you are looking for a brighter sound, set the tweeter at +3dB.
Rubber surrounds
This material provides optimum cone-edge suspension and absorbs distortions that may travel up the cone edge, adding stronger low-end.
| Power Handling, RMS: | 100 Watts | |
| Power Handling, Peak: | 300 Watts | |
| Sensitivity (2.83V @ 1m): | 94dB | |
| Frequency Response: | 46Hz - 21kHz | |
| Impedance: | 2 Ohms | |
| Mounting Depth: | 3-1/16 inches |
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Most Helpful Customer Reviews
5 of 5 people found the following review helpful:
5.0 out of 5 stars
Excellent entry level speaker,
By
Amazon Verified Purchase(What's this?)
This review is from: Infinity Reference 9633cf 6 x 9-Inch, 300-Watt High Peformance 3-Way Loudspeaker (Pair) (Electronics)
I've used Infinity speakers for years and they never fail to impress me. My vehicle has the Kappa line from a few years ago and I also added the Basslink self-powered subwoofer. I decided it was time to replace my wife's factory speakers and seeing that her vehicle is higher mileage, I decided to try the Reference line to see how the entry level speakers compared. WOW! I purchased this set with the 3032cf for the dash and the 6032cf for the doors. Due to the current sale, I was able to get all three sets for $191 delivered - an excellent bargain! I was very impressed with the 6032cf and 9633cf tweeter enhancement switch which adds an extra 3 db if needed (and in her car it did since her stock headunit only has bass, midrange, and treble adjustments.) When we tested out some of our favorite rock tunes (particularly sections with heavy bass,) they performed so impressively that my wife commented that it sounds like my car with the subwoofer ... only she doesn't have one. Highly recommended! Infinity proves once again they are the premiere speaker manufacturer.
3 of 3 people found the following review helpful:
5.0 out of 5 stars
Excellent 3-way Speakers,
By Silver Phantom (Chicago) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: Infinity Reference 9633cf 6 x 9-Inch, 300-Watt High Peformance 3-Way Loudspeaker (Pair) (Electronics)
I was looking for a high quality, yet affordable speakers to put in the doors of my Toyota FJ Cruiser. These are exactly what I was looking for.
The speakers are of very solid construction - solid metal with a rubber and metal woofer and two-way tweeter with 3db boost option. The upper end is very, very clear providing great range for voice and higher-end instruments. The speakers work best with a sub-woofer that helps to balance out the low end. I considered Alpine and Infinity Kappa series when evaluating speakers. Both of them had a stronger low-end but much weaker high-end. If you have a sub-woofer and are looking for speakers to help round out the car's system, these are for you. I also installed the Infinity Reference 3032cf 3.5-Inch, 75-watt High Performance Two-Way Loudspeaker (Pair) in the dash and rear pillar. Excellent match. Now I prefer to listen to music in my truck over virtually any other location.
4 of 5 people found the following review helpful:
4.0 out of 5 stars
Great speaker, watch the details.,
By
Amazon Verified Purchase(What's this?)
This review is from: Infinity Reference 9633cf 6 x 9-Inch, 300-Watt High Peformance 3-Way Loudspeaker (Pair) (Electronics)
These speakers, like most Infinity speakers, are well made. Sound is excellent when hooked to an external amplifier. But please watch out for the details of what comes with this speaker set. You get the speakaers, foam material for installation and that's it. No grills, no installation hardware, such as screws, no speaker wires, and no terminals. Luckily enough, I was not aware that I puchased the newer version of a set of speakers I already had, so I could reuse the old grills and hardware. The set is worth what Amazon sells it for, but it would of been nice to have updated grills.
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