This is a used / pre-loved item, we do our best to uphold the quality of all our used equipment.Offer 2 Seeburg TK-115. The boxes are not the original. The original sounded terrible. The good thing about the box was actually only the horn flare but the rest was shit! We once designed a soft one that meets the box. A B&C DE 750 and an RCF MB15N351 are installed, everything is tailored to the components. I can say about the data that it can be used from 100Hz and that 2 small filters may need in the DSP. I can say that it runs straight and powerfully up to 800 RMS. The boxes are no longer a showy and definitely an all -round device on the market, which does not exist. It is best to listen to and see the suburb. There are 2 others with the RCF MB15N401.