hello I have 2 B415DSP eurolive I think it works very very good value for money
on the other hand not serious enough to use a box made mandatory not like me at the beginning I adjust the bass playing with Knob behind the speaker and I destroyed on the 38 and what did that despites 2 months served 4 times there is no guaranteed both by the dealer by the manufacturer
Then suddenly I change 2 38 and I put up 2 ala HP 38 EMINENCE KAPPA PRO home 15 LF IN SPECIAL LOW 450W and is the ultimate in power, especially in low quality and more bessoin Enclosure after more of the problem both in outdoor room