DB Technologies SUB 808D Used - ACTIVE SUBWOOFER 18 "800W

(This text is machine translated) The SUB 808D speakers are subwoofers made with hybrid technology H. E. T. (Hybrid Enclosure Technology), developed in dB Technologies laboratories. The box is in fact made of light plywood, coated in PVC and the sides are in polypropylene. The "SUB D" H. E. T. series speakers use the latest generation Digipack digital multi-channel amplifier modules. These high efficiency amplifiers allow to obtain high output power with reduced dimensions. Thanks to the low dissipated power, the cooling of the amplifier module occurs statically, avoiding the use of a fan. The digital preamplifier with DSP (Digital Signal Processing) manages the frequency response, the limiter, the audio crossing in the case of multiple speakers connected. The regular switch-on of the speaker is guaranteed by an initialization procedure; during this test phase, both the "Limiter" and "On Signal" LEDs remain on simultaneously for approximately 2 seconds. At the end of the start-up procedure, the green "On S...