Features & specs
| Features and Specs | ||
|---|---|---|
| Size | 8-inch | |
| Impedance (Ohms) | 4 | |
| Cone Material | Flax/Glass | |
| Surround Material | Rubber | |
| Port diameter (inches) | N/A | |
| Port length (inches) | N/A | |
| Free-Air | No | |
| Dual Voice Coil | No | |
| Sensitivity | 86 dB at 2.83 volts |
|
| Frequency Response | 35 - 400 Hz | |
| Max RMS Power Handling | 200 | |
| Peak Power Handling (Watts) | 400 | |
| Top Mount Depth (inches) | 3 | |
| Bottom Mount Depth (inches) | N/A | |
| Cutout Diameter or Length (inches) | 7 3/16 | |
| Frame Width | 8.375 | |
| Frame Length | 8.375 | |
| Vas (liters) | 9 | |
| Fs (Hz) | 35 | |
| Qts | 1.3 | |
| Xmax (millimeters) | 11 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
| Box Requirements | ||
| Ideal Sealed Box Volume (cubic feet) | 0.28 | |
| Minimum Sealed Box Volume (cubic feet) | 0.21 | |
| Maximum Sealed Box Volume (cubic feet) | 0.38 | |
| Ideal Ported Box Volume (cubic feet) | N/A | |
| Minimum Ported Box Volume (cubic feet) | N/A | |
| Maximum Ported Box Volume (cubic feet) | N/A | |
Product Research
Features
Cone: The woofer cone is a sandwich design, with a flax center between two glass layers. This combination of materials results in a neutral sound without coloration.
Surround: The rubber surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.
Spring-Posts: The spring-post speaker terminals offer easy connection of single banana plugs or bare wire up to 10 gauge.
Rubber Gasket: The gasket/mounting-ring ensures better chassis damping and prevents air leakage. The rubber gasket is removable.
Enclosure: Focal recommends a sealed enclosure volume of 0.28 ft³ (examples are given from 0.21 ft³ to 0.32 ft³). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable for all types of music.
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