Tantrum Audio Really Mean Sub Subwoofer in Black

The Tantrum Audio Really Mean Sub in Black is a compact, ultra-precise active subwoofer designed to transform the way you hear low end in the studio. Packing 400 watts of ICEpower amplification, dual force-cancelling drivers and powerful onboard DSP into a 28cm cube, it delivers incredibly tight, extended bass that integrates seamlessly with your existing monitors, even in smaller rooms.

Engineered specifically for critical monitoring, the Really Mean Sub offers a remarkably flat response from 28Hz to 200Hz, with usable extension down to 15Hz. Advanced technologies such as Impulse Control and the Quick Alignment Tool ensure that what you hear is fast, accurate and perfectly time-aligned, so you can make confident decisions when mixing, mastering or working on sound design.

Despite its compact footprint, the sealed 24mm MDF cabinet and dual opposed drivers keep vibrations and distortion to a minimum, even at higher listening levels. The result is low end that feels powerful yet controlled, revealing subtle details in kick drums, bass lines and effects that are often lost on conventional subwoofers.

With professional connectivity, USB-C DSP control and automatic room and timing optimisation, the Really Mean Sub slots effortlessly into professional studios, high-end home setups and post-production suites alike. If you need studio-grade low-frequency monitoring without sacrificing space or accuracy, this subwoofer is purpose-built for the job.

Dual Driver Force-Cancelling Design

At the heart of the Really Mean Sub is a dual driver system mounted in opposite configuration and mechanically coupled. This clever design cancels the reactive forces that normally cause cabinet vibrations, dramatically reducing structural noise and intermodulation distortion. You get cleaner, more articulate bass that stays focused and uncoloured, even when you push the volume.

400W ICEpower Amplification with USB-C DSP

The built-in 400W ICEpower Class AB amplification delivers plenty of clean, controlled headroom, ensuring the sub stays tight and responsive under load. An integrated DSP engine, accessible via USB-C, lets you fine-tune the subwoofer to your room, applying precise acoustic correction to tame resonances and problem modes. This means more reliable monitoring and mixes that translate better outside your studio.

Extended, Linear Low-Frequency Response

With a frequency response that is flat within ±1dB from 28Hz to 200Hz, and extension down to 15Hz at -10dB, the Really Mean Sub reaches deep while remaining exceptionally linear. The sealed 24mm MDF enclosure with a high-strength baffle minimises unwanted resonances, so you can accurately judge sub-bass content, low-end balance and overall mix weight without guesswork.

Quick Alignment Tool and Impulse Control

The Quick Alignment Tool automatically measures timing and aligns the sub with your main monitors, with adjustable delay up to ±3m. This eliminates common phase and timing issues, preserving a coherent stereo image and tight, punchy low end. Tantrum Audio’s Impulse Control technology further refines performance by predicting and correcting excessive driver movement in real time, delivering an ultra-precise impulse response that is crucial for detailed mixing and mastering work.

• Ultra-Compact 28cm Cube Design - Measuring just 28cm x 28cm x 28cm, the Really Mean Sub fits easily into tight studio spaces without compromising on performance, making it ideal for smaller control rooms, project studios and desktop setups.
• Dual Opposed Drivers with Force Cancellation - The mechanically coupled, opposing driver layout cancels reactive forces, reducing cabinet vibration and intermodulation distortion so you hear tight, accurate bass instead of box noise.
• Integrated DSP with USB-C Control - Onboard DSP accessible via USB-C allows precise room correction and system tuning, helping you adapt the subwoofer to your specific acoustic environment for more trustworthy monitoring.
• Quick Alignment Tool and Impulse Control - Automatic timing alignment and advanced feedforward driver control ensure phase-coherent integration with your monitors and an exceptionally clean, fast low-frequency response.

General

• Product: Tantrum Audio Really Mean Sub
• Type: Active studio subwoofer
• Finish: Black
• Cabinet: Sealed 24mm MDF with high-strength baffle
• Dimensions: 28cm x 28cm x 28cm

Performance

• Amplifier Power: 400W ICEpower Class AB
• Frequency Response: 28Hz to 200Hz (±1dB)
• Low-Frequency Extension: 15Hz (-10dB)
• Input Level: +8dBU
• Technologies: Impulse Control, Quick Alignment Tool

Connectivity and Control

• Inputs: Balanced XLR stereo
• Inputs: Balanced TRS stereo
• DSP Control: Integrated DSP via USB-C
• Power Supply: 90 to 260V AC, 50/60Hz