HK Audio SONAR 115 Sub D - 15" Active Subwoofer

This is what HK Audio say about the SONAR 115 Sub D:

The SONAR 115 Sub D is a high-powered, advanced active subwoofer designed to enhance the low-end performance of SONAR full-range speakers—and a wide range of other speaker systems. Featuring a 15" high-performance woofer, a 1500-watt power amplifier, and precise HK Audio acoustic tuning, it delivers deep, powerful bass with exceptional clarity.

A built-in 24-bit DSP, operated via a backlit LCD screen, allows for easy adjustment of crossover frequency, polarity, and delay settings. One standout feature is its efficient, user-friendly Cardioid mode—previously found only in significantly more expensive subwoofers. With two pre-configured presets—CARDIOID FRONT and CARDIOID REAR—unwanted low-frequency spill to the rear is effectively reduced, ensuring cleaner, more controlled bass performance.

• Max. SPL Peak @ 10 % THD: 125 dB half space
• Max SPL calculated: 128 dB half space
• Frequency response -10 dB: 36 Hz – X-over
• Amplifier output (Peak Power): 1500 W
• Woofer: 1 x 15", 3" voice coil
• Display: LCD
• Audio inputs: 2x XLR/jack combo balanced
• Audio outputs: 2x XLR thru out balanced
• Sound modes: Normal/Bass Boost
• Setup modes: SONAR, Cardioid Front, Cardioid Rear
• Delay: 0-10 meters
• Pole mount: 1x M20
• Carrying handles: 2x MultiGrip
• Casters: Optional
• Housing: Wood
• Finish: Black acrylic enamel
• Front grille: metal grille backed with black acoustic foam
• Dimensions (WxHxD): 43 x 61.2 x 61.6 cm
• Weight: 28.4 kg

• 15" high-performance woofer
• 1500-watt peak power
• 24-bit DSP electronics
• LCD screen with dimming function
• Clear menu control of parameters such as Bass Boost, X-Over, Polarity, Delay
• Mode for operation with SONAR mid/high units 
• CARDIOID FRONT and CARDIOID REAR presets for easy Cardioid operation
• HK Audio MultiGrip handles
• 2 input channels and 2 output channels
• M20 pole mount adapter
• Sturdy wooden cabinet 
• Metal grille front backed with black acoustic foam
• Equipped for fitting transport rollers
• 5-year manufacturer warranty after registration