



Tantrum Audio Really Mean Sub
Most subwoofers fall short on accuracy - high excursion drivers can result in a smeared impulse response. The feedforward correction system, Impulse Control, sees into the future and stops excess motion before it happens. The result is bass so tight your mastering engineer might finally respect you.
The built in USB-C controlled DSP is available on both the subwoofer AND main monitor outputs. Through pristine class AB output stages, it hunts down those room modes you pretend not to hear. You'll need new excuses for why that kick drum doesn't translate.
Really Mean Sub's balanced configuration cancels out any remaining reactive forces inside our exceptionally robust 24mm thick sandwich baffle MDF enclosure. Structural vibrations are reduced, improving intermodulation distortion and allowing you to make faster, more accurate decisions.
At just 28cm tall, the Really Mean Sub scores high on partner approval. But with 400W of ICEpower amplification inside, this subwoofer delivers bass that stays brutally clean even when cranked to volumes guaranteed to have you sleeping on the sofa. Consider yourself warned.
Most pros avoid subwoofers because they're a nightmare to integrate; nobody really knows what those phase and delay knobs actually do - Tantrum fixed that. The Quick Alignment tool measures and syncs the Really Mean Sub's timing dead-on with any speaker.
- Dual-Opposing Mechanically Coupled Drivers
- 400W of ICEpower Amplification
- Sealed Enclosure 24mm Thick MDF
- Feedforward Transient Overshoot Correction
- Built in Crossover and Speaker Alignment
- Intelligent Room Correction (Full Room Correction Currently in BETA)
- Stereo Balanced XLR + TRS Jack Inputs
- Stereo Balanced XLR Outputs with DSP
- Class-AB +8dBU Input Level
- USB-C App Control
- ±3m of Time Alignment Delay
- Footswitch: Sub Mute + Crossover Bypass
- -10dB LF Cutoff: 15Hz
- -3dB LF Cutoff: 22Hz
- Flat ±1dB 28-200Hz
- Max SPL: 102dB
- Dimensions: 28cm x 28cm x 28cm
- Weight: 20kg
- Power: 90-260V AC, 50/60Hz
- Designed and Manufactured in the UK

Tantrum Audio Really Mean Sub
New Gear FAQs
Are all new items in stock?
With such a wide range of products we cant stock everything at all times.
The product page will display if an item is in stock. If it is marked as pre-order, you can place your order as normal and await its arrival into stock.
Please get in touch for an estimated shipping date. This may vary depending on stocking level with the manufacturer and/or distributor.
What warranty do you get with new gear?
Minimum 1 year manufacturer's warranty. Some manufacturers may also extend this (please see their respective websites for more information).
Can I part exchange used gear towards new gear?
Of course! Whether youre just looking to sell unused gear or looking to upgrade, get in touch here to discuss.
Can I test the equipment before I buy it?
We have a demo room at MNPA HQ where you are welcome to come and try out the equipment we have in stock. We’re not a shop and open to the general public so please get in touch via our Contact Form to book an appointment before coming to see us.