About the Infinity Reference Series 6-1/2" Speakers
Bigger is better with Plus One woofers! Using a new basket design and high-roll rubber surround, Infinity has developed a poly cone that is 30 percent larger than cones of similar-sized speakers. The 652i 6-1/2" speaker will thrill you with its increased bass output and greater efficiency. The angled silk dome tweeter can be turned 355° for optimum imaging. No wonder Car Sound magazine said: "These puppies sound really good."
Details:- Plus One polypropylene woofer cone is 30% larger than other speakers of this size, ensuring strong bass response
- high-roll rubber surround allows greater woofer movement
- 3/4" silk semi-dome tweeter may be rotated up to 355° for improved imaging
- sensitivity 92 dB
- frequency response 54-20,000 Hz
- recommended power range 2-60 watts RMS
- peak power handling 180 watts
- top-mount depth 2-1/16"
Priced per pair
What's in the box:
Infinity Reference Series 6-1/2" Speakers owner's manual
- Two 2-way speakers
- 2 Grilles
- 2 Grille frames
- 2 Metal mounting rings
- 2 Self-adhesive foam strips
- 8 Machine screws
- 8 Self-tapping mounting screws
- 8 Speed clips
- Instructions/Specification sheet
- Warranty/Survey card
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More details on the Infinity Reference Series 6-1/2" Speakers

Features & specs
General | ||
---|---|---|
Speaker Size | ||
Design | 2-way | |
Tweeter Design | UniPivot Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Silk | |
Woofer Composition | IMPP | |
Woofer Surround | Hi-Roll Rubber | |
Parts Warranty | 1 YEAR | |
Labor Warranty | 1 YEAR | |
Specifications | ||
Sensitivity (1W at 1 meter) | 92 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 54 - 20k Hz | |
Minimum RMS Wattage | 2 | |
Maximum RMS Wattage | 60 | |
Peak Power Handling (Watts) | 180 | |
Top-mount Depth (Inches) | 2 1/16 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 5 | |
Mounting Height (Inches) | 0.914 |
Product Research
Plus One Woofer Cones: This speaker uses a cone approximately 30% larger than other speakers of the same size. This is accomplished by using a new basket design and hi-roll surround. The Plus One design offers greater bass output and a significant increase in efficiency.
Woofer Materials: The woofer is constructed from Injection-Molded Polypropylene. This process of cone molding assures a uniform cone thickness for superior linearity and clarity. It is also lighter weight and more rigid for decreased distortion and improved bass response.
Surrounds: The Hi-Roll rubber surround allows the woofer a greater range of movement, resulting in longer X-max and more bass output.
Tweeters: This speaker uses a 3/4" silk dome tweeter for smooth, accurate highs. The UniPivot tweeter is angled (non-adjustable) and may be turned up to 355 degrees for optimum imaging and in-car frequency response. It is NOT made to turn 360 degrees. If the tweeter is turned 360 degrees or more, it will be damaged.
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Great sound even when used with a headunit but they really shine on an amplifier
donald from Waterbury, CT