DD (Digital Designs) DD D600 + DD RLLE-M512D-D2 active subwoofer basskit (300 mm).

DD audio Basskit DD D600 + DDRLLE-M512D-D2  active subwoofer KIT 12" (300 mm).

This DD Audio Basskit includes a loaded enclosure LE-512D-D2 with 12″ driver and D600 mono amplifier.

The LE-500 Series enclosures were designed using our tried and true DD Box System to deliver low and loud bass without taking up your whole cargo area or requiring thousands of watts of power. 
They feature a wedge design with a narrow top and deeper base to ensure a snug fit against the incline of a backseat. We also loaded them with high-efficiency subwoofers built specifically for the LE Series.

D Series amplifiers are compact amplifiers with full size features. The D600 is a 1 ohm stable monoblock subwoofer amplifier with a total output power of 600 watts. 
Precision tuning is made easy with variable bandpass crossovers and LED clipping indicator. Installation is made easier with single side controls and connections, and auto turn-on options.  
For boat, bike, and ATV applications conformal coated internal circuitry and corrosion proof switches offer increased moisture resistance.   
Even though the D Series amplifiers are very compact they still employ set screw power and speaker terminals, discrete output sections, and heavy duty anodized aluminum heatsinks. 
This ensures power management is proper from input to output, increasing both in-use stability and long term durability.