Focal ISUB Twin Sub Powerful Compact Passive Underseat Car Subwoofer 2x 100w RMS
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ISUB TWIN
Underseat passive subwoofer
POWERFUL, HIGH-IMPACT BASS
ULTRA-COMPACT, PASSIVE BASS ENCLOSURES
The pair of ISUB TWIN passive subwoofers drastically improves the impact of the bass in an in-car audio installation, specifically thanks to the double ferrite speaker drivers and heavy-duty, tough aluminium cone. The front grilles promote optimum sound dispersion throughout the cabin.
These ultra-compact subwoofers are quick and easy to install too, without any car modifications required. They slide comfortably underneath the seats* and are super easy to attach, with no tools required, using the self-adhesive strips provided. However, it is also very easy to screw them to the floor if you so wish.
We recommend powering the ISUB TWIN with amplifier Impulse 4.320, its two front channels will remain available to connect a pair of speaker drivers in the front doors, for example.
*Check the available space before installation.
RUNNING-IN PERIOD
In order to get the best of your ISUB TWIN speakers, a running-in period must be respected to ensure they are ready for this. We recommend that, once the system is ready for listening, the drive units should be run-in with medium volume setting, with music that has the full bandwidth of frequencies (sub-bass through treble). This running-in period should last for a few weeks, to gain the full potential. After which the excellent performance of your ISUB TWIN kit can be fully appreciated.
KEY POINTS
- Ultra-compact, twin subwoofers
- High-fidelity sound
- Easy, invisible integration
- Self-adhesive strips provided
- Compatible with all Focal Car Audio products as well as Focal Inside.
Specification
| Sensitivity | 83dB |
|---|---|
| Cone | Aluminium |
| Surround | Butyl |
More specs
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What's Included
- ISUB x2
- Velcro strips
Check the available space before installing in the desired locations.
FAQs
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What size enclosure does this subwoofer need?
A: The recommended enclosure volume is listed in the Specification tab where the manufacturer provides it. As a rule, sealed enclosures give tighter, more accurate bass while ported enclosures deliver more output. Contact CEN if you would like a recommendation for your build.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Sealed or ported enclosure - which should I choose?
A: Sealed boxes are compact and produce tight, controlled bass suited to sound quality builds. Ported boxes are larger and produce more output at low frequencies, suited to those who want maximum impact. Either works well when built to the recommended volume.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
About the brand
Focal
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