HK Audio Sonar 115 Sub D

A compact powerhouse that packs a phenomenal low-frequency foundation into an enclosure with a surprisingly small footprint, this high-performance 15″ woofer delivers impressive 1500 watts of power. And its efficient 24-bit controller turns all that muscle into a demonstration of low-end might one would only expect from large 18″ subwoofers. That’s how the der SONAR 115 Sub D transforms a good song into a gripping rock hymn and reserved wallflowers into dancing queens and kings.
No sophisticated subwoofer has ever been simpler to set up: Just select the appropriate preset on the easy-to-read display and enjoy the perfect plug-&-play sound.
And if you like the idea of a space-saving 2.1 subwoofer/satellite system, then you’re sure to love the der SONAR 115 Sub D ´s stereo inputs and outputs.
This bass bin also comes with a very special feature called Cardioid mode that drastically reduces the volume behind the speaker when you’re running two der SONAR 115 Sub D. With this professional feature, cardioid setups require no further adjustments – anyone can configure them without having to fuss with complicated calculations.

Adding a second SONAR 115 Sub D increases the low-frequency sound pressure level. The classic full-stack configuration on the left with two subs projecting forward boosts the SPL by 3 dB in all directions. But there is a better way of boosting bass SPL – with the SONAR 115 Sub D’s cardioid capabilities. It features two presets that let you set up a cardioid bass rig as shown on the right with the bottom sub projecting rearward – no complicated math or delay time compensation required.

Simply select the Cardioid Rear preset for the bottom bass bin and the Cardioid Front preset for top subwoofer that projects forward. Now the two are tuned to operate properly without requiring any further adjustments.

A cardioid setup is all about canceling out rearward radiating frequencies. While speakers are able to throw midrange and high frequencies in directional patterns, low frequencies tend to radiate in all directions. Excessive bass levels can often be a problem on and behind the stage. And promoters are increasingly making demands to limit sound systems’ low-end reach, for example, in festival tents at urban venues.

The SONAR 115 SUB D has all the hardware and audio features needed to quickly and easily configure effective cardioid setups that attenuate rearward bass frequencies by as much as 34 dB. This makes performing life a lot easier for the artists on the stage and vastly improves the sound because microphones no longer pick up stray low-frequency signals.