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Focal ISUB BMW Inside Series Direct Fit Subs Under Seat Subwoofers 4ohm

Focal ISUB BMW Inside Series Direct Fit Subs Under Seat Subwoofers 4ohm - Main image
$271.99 $399.99 In stock

Category: Subwoofer

PAIR OF SUBWOOFERS

ISUB BMW 4 is a subwoofer that delivers powerful bass thanks to its neodymium engine, a high performing Focal technology.

Focal Inside for BMW & Mini

Rediscover the pleasure of listening to your favourite songs whilst on the road with Focal’s audio kits

With ISUB BMW 4, the sound is neutral and the install is quick thanks to the spacer integrated in the chassis that allows perfect integration into the original location. With its 4 Ohms impedance, it is ideal with your orignal amplificati

  • Quick installation
  • No wire to cut, no modification
  • 100% compatible with your vehicle
  • Sound quality superior compared to the original one
  • Mounting accessories included
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Customer Reviews (4.6 / 5 · 5 reviews)

Zoe C. ★★★★★

Installed these in my 3-series and the neodymium engine makes a real difference — tight, punchy bass that actually fills the cabin without taking up any trunk space. They were a direct fit under the seats, which saved me a ton of fabrication time. Definitely worth the upgrade over the stock system.

Lucy B. ★★★★★

I was a bit skeptical about under-seat subs, but the 4ohm impedance paired with my amp perfectly and the bass is clean and tight. Installation was straightforward, and now my car has that deep, punchy low end I was missing.

Christopher ★★★★★

The neodymium engine really pulls its weight here—bass stays tight and punchy even at low volumes with the seats in place. Took about an hour to swap in, and now the whole cabin feels alive without rattling anything loose.