When we set out to make the Underseat compact powered sub, we wanted to make a subwoofer that could fit almost anywhere and still deliver the performance that made Soundstream famous. At just 3″ tall, this should surely fit under numerous seats and in storage areas. The controlling, built-in amplifier delivers strong bass that’ll add intensity and thump to any system.
Looking to upgrade your car audio without giving up precious cargo space? Soundstream under seat subwoofers are engineered for drivers who demand powerful bass in compact enclosures. Whether you're working with a small sedan, a work truck, or a tight cabin space, our slim underseat subwoofers deliver clean, punchy, low-end sound without dominating your interior.
A compact under seat subwoofer solves a common problem — where to fit a sub in vehicles with limited space. Whether you're commuting daily, enjoying road trips, or simply want better sound in your ride, these low-profile enclosures make it possible.
Here’s why more drivers are choosing powered underseat subwoofers from Soundstream:
You don’t need a trunk full of equipment to enjoy immersive bass — just a reliable, discreet under seat subwoofer with amp that does the job.
Soundstream offers several compact subwoofer models tailored for cars, trucks, and SUVs. Each delivers powerful performance in a space-efficient design:
From basic upgrades to full-on bass lovers, there’s a Soundstream underseat subwoofer for every setup.
Each model is packed with features that prioritize space, performance, and simplicity:
1. Built-in Class D Amplification
Every Soundstream underseat subwoofer with built-in amplifier minimizes installation time and space consumption.
2. Slim, Low-Profile Design
With heights as low as 3 inches, these subs slide easily under seats, behind panels, or beneath platforms.
3. Powerful Output for the Size
Don’t let the small form factor fool you. These subs are capable of rich, dynamic bass typically found in larger enclosures.
4. Multiple Sizes and Power Ratings
Choose from 10-inch, 12-inch, and even 15-inch underseat subwoofers to match your cabin size and power needs.
Wherever you need bass and have limited space, a compact underseat subwoofer delivers without compromise.
Cars – Under front or rear seats
Trucks – Behind or below rear seats
Boats and RVs – In hidden compartments or under benches
Home setups – Under couches or gaming chairs
Commercial installs – Like rideshare vehicles or company fleets
With a proven track record in compact audio solutions, Soundstream engineers every model to blend size, power, and quality. Whether you're working with a car under seat subwoofer with amplifier or a passive install, you get:
The best underseat subwoofer depends on your vehicle size, budget, and bass preferences. Soundstream offers powerful 10" and 12" models with built-in amplifiers, tuned for tight installs and high output.
Absolutely. A good underseat subwoofer with amp gives you bass impact without taking up trunk space. It's the perfect middle ground between stock speakers and a full custom setup.
Not always. Many Soundstream under seat subwoofers are active subs, meaning they come with a built-in Class D amplifier. However, passive models also exist for more custom installations.
Yes. Most powered underseat subwoofers are designed for easy DIY installation. Just connect power, ground, and RCA inputs, and mount it under your seat using the included brackets.
Go with a 10-inch under seat subwoofer for a balance of size and performance. For more impact, a 12-inch model gives deeper lows if your seat clearance allows.
