The Amp : it is giving the sub 100 rms at 8 Ohm (Ciare YSA100)
The Sub : proel CLPN10 600 watts peak/ 300 rms 4+4ohm
The Box : 42 Liters tuned at 36 hz
The Tube : 9
powered by technics amplifier
Link to buy it for 42 euros on ebay here :
http://www.ebay.it/itm/Proel-Subwoofer-10-serie-CLPN-Car-Audio-/270935999577?pt=Altoparlanti_e_Su