The OMNITRONIC MAXX-1508NG is an active 15-inch vented subwoofer with an integrated Class D amplifier and digital signal processor. It features a multiband compressor, multistep limiter, active phase correction, delay compensation, three-band EQ, Bluetooth control, five DSP presets, and a four-channel mixer. The 15 mm MDF enclosure includes two carrying handles, four rubber feet, an M20 attachment thread, and optional wheels.