About the Focal ISU 130

Product highlights:
- component speaker system includes two woofers and two tweeters with inline crossovers
- 5-1/4" polyglass woofer with butyl rubber surround
- aluminum/magnesium inverted dome tweeter with acoustic horn design
- tweeter installation accessories included
- 4-ohm impedance
- handles up to 60 watts RMS power range (120 watts peak)
- frequency response: 90-21,000 Hz
- sensitivity: 91.8 dB (at 2.83V)
- woofer top-mount depth: 1-15/16"
- grilles not included
- warranty: 1 year
- MFR # ISU130
- Item # 091ISU130
What's in the box:
- Two woofers
- Two inverted dome tweeters (each with 5" length of speaker wire attached)
- 2 Flush mount tweeter housings (with tweeters installed)
- 2 Angled surface mount tweeter housings
- Two 18" Lengths of speaker wire with in-line tweeter crossovers
- 2 Woofer mounting gaskets
- 8 Speed clips
- Four 1" Flathead screws
- Eight 1" Pan head screws
- User manual (English/ French/ German/ Italian/ Spanish/ Portuguese/ Dutch/ Russian/ Polish/ Arabic)
- Focal window sticker
More details on the Focal ISU 130

Features & specs
General | ||
---|---|---|
Speaker Size | 5 | |
Driver Design | 2-way | |
Woofer Design | Cone | |
Woofer Material | Polyglass | |
Woofer Surround | Butyl Rubber | |
Midrange Design | --- | |
Midrange Material | --- | |
Tweeter Design | Inverted Dome | |
Tweeter Material | Aluminum/Magnesium | |
Super Tweeter Design | --- | |
Super Tweeter Material | --- | |
Impedance (Ohms) | 4 | |
Weather-resistant | No | |
Grilles Included | No | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | N/A | |
Sensitivity at 2.83 volts | 91.8 | |
Frequency Response | 90 - 21k Hz | |
Maximum RMS Wattage | 60 | |
Peak Power Handling (Watts) | 120 | |
Top-mount Depth (Inches) | 1 15/16 | |
Bottom-mount Depth (Inches) | 2 3/16 | |
Cutout Diameter or Length (inches) | 4 1/2 | |
Mounting Height (Inches) | 0.334 | |
Frame Width | 5.08 | |
Frame Length | 5.08 |
Product Research
Woofer
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 butyl 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 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.
Tweeter
Inverted Dome Tweeter: The tweeter is an inverted aluminum and magnesium 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.
Note: When flush mounted, the tweeters are pressure fit into the opening, with nothing holding them from behind, so the cutout diameter is very important.
Mounting Options: The tweeters include flush mount and angled surface mount housings:
Flush Mount | Angled Surface Mount | |
---|---|---|
Mounting Height | 0.312" | 2.105" |
Mounting Depth | 0.658" | 0.875" (screw depth) |
Frame Diameter | 1.957" | N/A |
Cutout Diameter | 1.74" | N/A |
Width | N/A | 1.968" |
Surface Depth | N/A | 3.114" |
Crossovers: The included 18" tweeter wires have integrated crossovers. The tweeter ends of the wires have quick-slide terminals that easily connect to the wires soldered to the tweeters. The input end of each wire has three leads, a negative and two positives. The positive leads are labeled Car and Display, with a lower output level from the Car lead (useful because the placement of the woofer in a typical car installation requires the tweeter output be lowered to maintain a balanced sound).
The Focal ISU 130 replaces these items:
- Polyglass woofer with butyl rubber surround
- processed aluminum inverted dome tweeter
- 5-60 watts RMS power range (120 watts peak)
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Customer Q&A
2 questions already asked
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After preliminary placing items in cart I called to ask a couple of questions and the advisor was able to see my cart and make a couple of corrections for me. Very helpful.
Chris from Jackson, MI