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Krix Seismix 3 Mk7 Downfiring Woodgrain (Vinyl) Subwoofer

In stock
From $1,295
Special Order

Perfection can take time

Krix speakers are usually made-to-order in South Australia, with construction beginning once your order has been placed. This process ensures great attention to detail is applied to each and every speaker, but it can also take time — sometimes around 2 weeks.

Give us a call

A premium product like this deserves the personal touch, so we would love to speak with you to ensure everything is perfect from start to finish. Please feel free to call us (or visit us in-store) to discuss your new system.


High Impact

For a deep bass experience that will move the earth without costing the earth, the Seismix 3 Downfiring Mk2 subwoofer is sure to rock your world. You won’t have to sacrifice musicality for low frequency output with this tuneful speaker that will allow you to truly feel the rumble of bass with supreme clarity.

A down-firing, vented subwoofer, the Seismix 3 Downfiring Mk2 features a Krix designed 275mm (11") long throw bass driver, developed specifically for high-level low frequency reinforcement. Enhanced geometry within the magnet structure increases linear cone travel by a whopping 30 percent and allows superior driver control, while the built-in high performance class D amplifier delivers increased sound efficiency with lower power consumption.

For the ultimate sound experience at home, play it through Krix.

Key Features:

+ 1 x 11" bass driver
+ Amplifier Power: 300 watts RMS
+ 22Hz > 200Hz Frequency response
+ Down-firing, bass reflex, downward vented
+ Supports wireless connection with new KS-700 wireless transmitter
+ Dimensions: 450 x 360 x 410 (HxWxD)
+ Weight: 18kg

Now runs wired and wireless

As well as the existing mono LFE or stereo RCA wired inputs, the Seismix 3 Downfiring Mk2 supports wireless input through the Krix KS-700 wireless transmitter. Simply connect the KS-700 to your receiver / amplifier's LFE / RCA outputs, pair with the sub, and away you go!

Front or down?

It may be a bit easier to blend a front-firing subwoofer sonically with your main speakers, if it is placed close to them. A down-firing sub may be better in situations where the sub is to placed further from the mains, or more obviously, if potential damage to the drivers by pets and toddlers is an issue. Krix offers this sub in both forward-firing and downward firing configurations.

About Krix:
The Krix team manufacture high quality loudspeakers for home and commercial use. With some 2000 commercial cinema installations globally, you have possibly already experienced Krix sound. Distributed throughout the world, Krix is at the leading edge of loudspeaker design. Utilising the latest test equipment, 3D modelling and computer simulated design technology, Krix's innovative research and development team is a pioneering force in the Australian loudspeaker industry.

Home cinema
Experience cinema sound. Krix speakers were chosen as the audio solution for over half of all commercial cinemas across Australia. The same Krix expertise has been used to develop a speaker range specifically tailored for your home cinema system. Look for the Krix Home Cinema icon.

More Information
Model Number Seismix3DF.con
RRP 1,295.00

Frequency Range: 22Hz - 200Hz in room response
Amplifier Power: 300 watts RMS
Low Frequency Driver: Nominal 275mm (11") diameter doped paper cone driver, 50mm (2") voice coil wound on high powered Kapton former, with vented magnet assembly
Output: 122dB maximum SPL in room response
Inputs: Mono / Stereo line level RCA or wireless via Krix KS-700 transmitter
Enclosure Type: Down-firing, bass reflex, downward vented
Power On/Off: Signal sensing, 15 minute delay before switching to standby after no input signal
Phase Select: 0º to 180º continuously variable (relative to input signal)
Low Pass Filter: 50Hz-200Hz or bypass
Dimensions: 450mm high x 360mm wide x 410mm deep
Weight: 18kg each

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5 Year Warranty
All Krix speakers are Australian designed and Australian made.
Krix are so confident in the quality of their products that they provide a 5 Year Warranty with all new Krix speakers.
To claim your warranty, please register your product with Krix within 90 days of the purchase date.

Register with Krix
How much does delivery cost?
Nothing! We offer free post on all orders to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
We offer a 30 day 100% satisfaction guarantee on all of our products! If your order arrives damaged, faulty or not quite as you expected, please contact us and we will do everything we can to fix the situation.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.