Turbosound iQ15B Active Subwoofer

Powered 15" Subwoofer With Serious Low-End Punch

The Turbosound iQ15B is a front-loaded 15-inch powered subwoofer engineered for portable PA and fixed installation scenarios demanding clean, controlled bass. With 3,000 watts of peak output from a lightweight Class-D amplifier, this model pairs a high-excursion LF driver and advanced Klark Teknik DSP. Deep, articulate sub-bass integrates cleanly with existing tops, making it ideal for live sound pros, mobile DJs, and houses of worship.

What Sets This Sub Apart

What separates the iQ15B from generic powered subs is its Klark Teknik DSP with speaker modelling and proprietary Ultranet digital audio networking. Onboard LCD interface, USB remote control, and Neutrik powerCON mains link output transform a single sub into the hub of a scalable, networked PA. Sealed birch plywood construction, semi-matte black finish, and a powder-coated perforated steel grille are designed to handle the demands of touring.

Amplification & Output — Class-D Power for Modern Rigs

Staying lightweight while delivering 3,000 watts is thanks to efficient Class-D amplification. The integrated Klark Teknik power module maximizes output and minimizes thermal weight, while dynamic EQ and transparent limiting protect the driver at sustained high SPL.

• Amplifier Type: Class-D (Klark Teknik) — high output with low thermal mass
• Peak Power: 3,000 W — headroom for chest-reinforcing low end
• Even outdoors or in large rooms, maximum SPL of 125 dB continuous and 131 dB peak keeps every bass note present and powerful.

Driver & Acoustic Performance — Tuned for Tight Bass

At the heart of the enclosure sits a high-excursion 15" LF driver with a 4" voice coil and double suspension, providing the cone travel needed for clean, undistorted bass at high SPL. Sealed birch plywood construction lends focus and punch to every kick and bass note.

• LF Driver: 15" (381 mm) with 4" voice coil, double suspension — long-throw, low-distortion bass
• Frequency Range: 40 Hz – 130 Hz (-10 dB) — reaches the deepest sub-bass fundamentals
• Road-tough birch plywood enclosure in a semi-matte black finish ensures durability show after show.

Connectivity & Integration — Networked Signal From Sub to Mixer

Ultranet over Cat 5 allows for pristine digital audio from compatible mixers and personal monitor systems. The LCD and USB-B port offer full DSP configuration from a laptop. Two combo XLR/Jack inputs, two XLR link outputs, and Neutrik powerCON chainable mains link simplify system wiring.

• Inputs: 2 x Combo XLR/Jack, USB-B, 2 x RJ45 (Ultranet) — analogue and digital sources in one panel
• For further system expansion, outputs include 2 x XLR link and Neutrik powerCON mains link, supporting additional iQ cabinets and satellite tops.
• Pole Mount: 36 mm socket — supports satellite speakers above the sub
• Transport: Back-mounted plated steel castors with rubber tyres — single-person load-in