FOCALUltra-Compact Passive Underseat Subwoofer System - ISUBTWIN

FOCALUltra-Compact Passive Underseat Subwoofer System - ISUBTWIN

$780.00

FOCALUltra-Compact Passive Underseat Subwoofer System - ISUBTWIN

$780.00

FOCALUltra-Compact Passive Underseat Subwoofer System - ISUBTWIN

$780.00

SKU: ISUB TWIN (pair)

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Product Details

Focal ISUB TWIN Ultra-Compact Passive Underseat Subwoofer System - ISUBTWIN

Experience deeper, more dynamic bass without sacrificing valuable cabin space with the Focal ISUB TWIN. Designed as an ultra-compact passive subwoofer system, the ISUB TWIN delivers powerful low-frequency performance from a discreet underseat installation, making it the perfect upgrade for factory and aftermarket audio systems alike.

Developed in France by Focal's renowned acoustic engineering team, the ISUB TWIN features dual aluminium cone subwoofers housed in compact enclosures designed to fit neatly beneath most vehicle seats. Heavy-duty double ferrite motors provide excellent control and efficiency, producing clean, articulate bass with minimal distortion even at higher listening levels.

Designed for Plug & Play installation, the ISUB TWIN can be secured using the supplied hook-and-loop straps or permanently mounted if preferred. When paired with the Focal Impulse 4.320 amplifier, the system delivers exceptional bass performance while leaving amplifier channels available to power your front speakers, creating a complete OEM+ audio upgrade.

Key Features

  • Ultra-compact dual passive subwoofer system
  • Designed for underseat installation
  • Heavy-duty double ferrite motor assemblies
  • Rigid aluminium cone diaphragms for accurate bass reproduction
  • Powerful, controlled low-frequency performance
  • Front-mounted protective metal grilles
  • Hook-and-loop mounting straps included
  • No cutting, drilling, or major vehicle modifications required
  • Compatible with Focal Impulse 4.320 amplifier
  • Developed in France for premium sound quality

Why Choose the ISUB TWIN?

The ISUB TWIN is designed for drivers who want powerful bass without losing cargo space or making significant modifications to their vehicle. Its compact footprint and Plug & Play design make it an ideal solution for modern vehicles where space is limited.

By extending low-frequency response and improving overall system balance, the ISUB TWIN creates a richer, fuller, and more engaging listening experience across all music genres.

Benefits

  • Deep, impactful bass from a compact enclosure
  • Improves overall sound system balance and realism
  • Maintains cabin and cargo space
  • Quick and straightforward installation
  • Excellent integration with factory and aftermarket systems
  • Ideal companion for Focal speaker upgrades

Specifications

  • Product Type: Ultra-Compact Passive Subwoofer System
  • Configuration: Dual Subwoofers
  • Cone Material: Aluminium
  • Motor Structure: Ferrite
  • RMS Power Handling: 100W
  • Maximum Power Handling: 200W (per subwoofer)
  • Total Maximum Power: 2 x 200W
  • Impedance: 2 Ohm
  • Sensitivity: 83dB
  • Maximum SPL: 83dB Peak @ 1m
  • Frequency Response: 50Hz – 150Hz
  • Voice Coil Diameter: 20mm (0.8")
  • Voice Coil Former: Polyimide
  • Voice Coil Layers: 4
  • Voice Coil Wire: Copper
  • DC Resistance: 1.9 Ohm
  • Suspension Material: Butyl

More Information

Product Type Ultra-Compact Passive Subwoofer
Configuration Twin Subwoofer System
Cone Material Aluminium
Motor Type Ferrite
RMS Power 100W
Maximum Power 200W per Subwoofer
Total Maximum Power 2 x 200W
Impedance 2 Ohm
Sensitivity 83dB
Maximum SPL 83dB Peak @ 1m
Frequency Response 50Hz - 150Hz
DC Resistance 1.9 Ohm
Voice Coil Diameter 20mm (0.8")
Voice Coil Former Polyimide
Voice Coil Layers 4
Voice Coil Wire Copper
Suspension Material Butyl
Width 260mm
Depth 240mm
Height 80mm
Protective Grilles Included

What's Included

  • 2 x Focal ISUB TWIN Passive Subwoofers
  • Integrated Metal Protective Grilles
  • Hook-and-Loop Mounting Straps
  • Installation Hardware
  • User Documentation

Running-In Recommendation

For optimum performance, Focal recommends a running-in period of several weeks using a variety of music played at moderate listening levels. This allows the drivers to achieve their full performance potential and deliver the tight, controlled bass response expected from a premium Focal system.