Focal Slatefiber SUB 20 SF 8-Inch Passive Subwoofer 200W RMS
₹49,999.00
₹42,500.00
Focal Slatefiber SUB 20 SF is a 200 mm passive subwoofer driver designed for car audio. For a compact custom bass system with an enclosure engineered from the subwoofer's own Thiele-Small data. It is not an amplified subwoofer and does not include a powered enclosure.
Key strengths and best application
single 200 mm (8-inch) Slatefiber-cone subwoofer. A correct enclosure, low-pass, subsonic protection where relevant and clean amplifier output matter more than headline power. Do not choose box volume from a generic 8-inch template.
Fitment and system planning
Before ordering, check the factory cut-out, bolt pattern, door glass movement, trim/grille clearance, supplied crossover and available amplifier channels. Nominal diameter alone does not confirm fitment. Not sure it fits? Contact VA3 Car Studio with your car's make, model and year before you order.
Specifications
| Brand | Focal |
| Series | Slatefiber |
| Model | SUB 20 SF |
| Configuration | 200 mm passive subwoofer driver |
| What's included / driver format | single 200 mm (8-inch) Slatefiber-cone subwoofer |
| Power handling | 200 W RMS / 400 W maximum |
| Nominal impedance | 4 Ω |
| Sensitivity | 87 dB |
| Cone material | Slatefiber carbon-fibre composite |
| Mounting depth | 90 mm |
Source: Focal's official product information. Technical figures are published specifications, not independent in-car acoustic measurements. Please confirm vehicle fitment with us before purchase.
Need help choosing? Read our Focal SUB 20 SF review and installation guide.
Quantity
Technical Specs
| Brand | Focal |
| Series | Slatefiber |
| Model | SUB 20 SF |
| Configuration | 200 mm passive subwoofer driver |
| What's included / driver format | single 200 mm (8-inch) Slatefiber-cone subwoofer |
| Power handling | 200 W RMS / 400 W maximum |
| Nominal impedance | 4 Ω |
| Sensitivity | 87 dB |
| Cone material | Slatefiber carbon-fibre composite |
| Mounting depth | 90 mm |
Fitment and installation
Single 200 mm passive subwoofer driver—not a speaker pair or amplified enclosure. Determine a suitable box using verified Thiele–Small data, allow for driver and bracing displacement, match amplifier load and protect the driver with appropriate filtering.
Vehicle and factory-audio-package fitment must be confirmed before purchase. Professional installation and system tuning available at Velocity Auto in Ghaziabad.
Research and buying guide
Manufacturer engineering parameters
Rdc 2.8 Ω; Fs 36 Hz; Vas 12 L; Qts 0.39; Qes 0.42; Qms 3.8; Mms 95 g; Sd 202 cm²; Xmax 10 mm; 52 mm voice coil. Focal suggested 9 L or 14 L enclosures, with published F3 68 Hz and 64 Hz respectively. Confirm alignment and net volume from the official sheet.
Source: Focal official technical sheet. These are individual driver parameters, not a substitute for vehicle-specific acoustic measurements or shipping-weight calculations.