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Focal Polyglass 170 V
6-3/4" component speaker system
Our take on the Focal Polyglass 170 V by Crutchfield's Buck Pomerantz
Focal's Polyglass V component systems use precision craftmanship and advanced materials to make a strong sonic impression. Each system includes two tweeters, two woofers, two crossover networks, grilles, and assorted hardware.
2-layer woofer cone and ABS basket
The 170 V system features a 6-3/4" woofer with a Polyglass cone that's created by depositing a layer of hollow glass microbeads over a layer of cellulose pulp. This unique material combines the warm sound of cellulose with the incredible strength of glass, for a cone that responds rapidly with extremely low resonance. The basket is made from a fiberglass/ABS mixture, providing a non-magnetic, non-resonant housing that won't color the sound. A butyl rubber surround helps control cone movement and promotes high power handling.
Focal designed the aluminum/magnesium inverted dome tweeter to disperse high frequencies evenly for a big, open soundstage. The external 2-way crossover ensures a smooth transition from lows to highs, so vocals and instruments sound natural. Grilles are included.
These are great speakers, I bought and fitted a second pair int he back of my c300' (they fit crutchfield), they sound harsh at first, but warm up as eye broke in. Also, Hespe seem to do best with the crossover to a sub at around 80-90hz.
What's in the Box:
- Two 6-3/4" Woofers
- Two TN44 inverted dome tweeters (with attached 5" length of speaker wire)
- 2 Tweeter flush mount cups (installed)
- 2 Tweeter angle mount cups
- 2 Crossover networks
- 2 Tweeter flush mount clamps
- 2 Woofer mounting/spacer rings
- 2 Woofer flange covers
- 4 Adhesive backed foam gaskets
- 6 Large speed clips
- 8 Standard speed clips
- Four 3/4" Flathead screws
- 8 small 1" Panhead screws
- 8 Large 3/4" Panhead screws
- 8 Medium 5/8" Panhead screws
- 10 Small 5/8" Panhead screws
- 4 Flat washers
- 8 Eyelet washers
- Six 4" Wiring adapters
- Six 10" Wiring adapters
- Owner's manual (English/ French)
- Focal window sticker
- 6-3/4" component speaker system (includes 2 woofers, 2 tweeters, 2 crossover networks, and hardware)
- Polyglass woofer with butyl rubber surround
- aluminum/magnesium inverted dome tweeter
- fiberglass/ABS basket
- outboard crossover
- grilles included
- 6-60 watts RMS power range (120 watts peak)
- frequency response: 60-20,000 Hz
- sensitivity: 91 dB
- depth: 2-1/4"
- warranty: 1 year
- Our 60-day money-back guarantee
Focal Polyglass 170 V Reviews
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Features and Specs
|Speaker Size||6 3/4|
|Tweeter Design||Inverted Dome|
|Woofer Composition||Polyglass-coated Celluose|
|Woofer Surround||Butyl Rubber|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
|Sensitivity (1W at 1 meter)||N/A|
|Sensitivity at 2.83 volts||91|
|Frequency Response||60 - 20k Hz|
|Minimum RMS Wattage||6|
|Maximum RMS Wattage||60|
|Peak Power Handling (Watts)||120|
|Top-mount Depth (Inches)||2 5/16|
|Bottom-mount Depth (Inches)||2 5/8|
|Cutout Diameter or Length (inches)||5 1/2|
Polyglass Cone: The woofer cone has a cellulose pulp base and is coated with a uniform deposit of hollow glass microballs. The addition of the Polyglass layer significantly increases the cone's rigidity without adding much weight. This combination takes advantage of the accuracy and neutrality of the hard outer surface, but maintains the superior damping characteristics of the cellulose pulp.
Surround: The rubber surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.
Phase Plug: The bullet-shaped aluminum phase plug in the center of the woofer ensures a smooth, flat off-axis frequency response by preventing the high frequency sound waves emanating from one side of the cone from interfering with sound waves from the other side of the cone.
Aluminum Basket: The woofer features a non-magnetic cast aluminum basket.
Inverted Dome Tweeter: The tweeter is an inverted aluminum dome, producing a broad sound stage. The tweeter has a Neodymium magnet to provide a powerful magnetic field for the voice coil, while still maintaining the tweeter's compact dimensions.
Mounting Options: The tweeter can be surface or flush mounted using the included adapters. Focal recommends flush mounting, but the included angled cup allows surface mounting at one of two angles; approximately 20° and approximately 40°.
Crossover: The included high-pass crossover is attached to the tweeter only; the woofer uses its natural mechanical roll off. The crossover slope is 12 dB/octave and the crossover point is 4,300 Hz.
|Flush Mount||20° Surface Mount||40° Surface Mount|
|Mounting Depth||0.795" (1.47" including screw)||0.675" (screw depth)||0.675" (screw depth)|
- Width: 1.214"
- Height: 0.975"
- Depth: 3.125"
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 verify what’s in the box, 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.
Product reviews from the Crutchfield Labs
by Zak Billmeier
This brief Crutchfield video takes a quick look at Focal Polyglass series speakers.