When your mains need low-end reinforcement that moves air, you need a powered subwoofer built for professional applications, not a consumer box that clips out at the first sign of real SPL. Square Cable stocks active subwoofers from the brands production companies, rental houses, and integrators rely on, at wholesale pricing that works for your business.
From compact 12-inch active subwoofers for portable rigs to heavy-hitting 18-inch subwoofers designed for fixed installs and large-format touring, we carry the depth and variety to match the right box to the right application.
What to Look for in a Professional Active Subwoofer
Not all powered subwoofers are built the same, and if you're spec'ing for rental inventory or a permanent install, the details matter. Here's what separates pro-grade active subwoofers from the rest:
Driver size & excursion: 18-inch subwoofers move significantly more air than 12s or 15s, making them the go-to for clubs, outdoor festivals, and high-SPL environments. 15-inch units split the difference well for mid-size venues and portable rigs.
Onboard DSP: Integrated processing handles crossover alignment, limiting, and EQ presets so that you can match subs to your tops without a separate drive rack
Cardioid mode support: Critical for stage monitor reduction and controlled low-end dispersion in live and installed environments
Class D amplification: Efficient, runs cooler, and handles high-output duty cycles without thermal throttling
Pole mount & rigging options: M20 threading and built-in rigging points make deployment faster and more flexible for rental applications
RDNet / network control: For production companies managing larger systems, remote monitoring and control of active subwoofers is a major workflow advantage
FAQs
Do these run standalone, or do they need a separate controller or processor to integrate with my tops?
Most active subwoofers in this catalog have onboard DSP with built-in crossover and system presets; you can run them straight from your console output. Higher-end units like the RCF SUB series with RDNet also support full remote control if you're running a more complex system.
Which subs in this lineup support cardioid configuration for stage rejection?
Several models support cardioid arrays either natively through DSP presets or via standard rear-facing deployment. The LD Systems MAUI 44 G2 SUB is a good example of a unit with dedicated cardioid bass extension built in. Check individual product specs or reach out–we can point you to the right box for your setup.
How do 15-inch vs. 18-inch subwoofers actually compare for rental use? Is the extra size worth it?
For most mid-size venues, bars, and corporate events, a quality 15-inch active subwoofer gets the job done and is easier to move and load. If you're regularly doing clubs, outdoor shows, or anything where you need serious low-end output and extension, an 18-inch subwoofer is worth the extra size and weight. Most rental houses carry both and let the gig dictate.
Can I set up a wholesale account to order subs in volume?
Absolutely. Square Cable is set up specifically for production companies, rental houses, and integrators. Reach out through the site to open an account. Volume pricing, consolidated shipping, and flexible terms are available depending on your operation.
