I purchased the BGO30 power dynamics 4x speaker system. I cannot stress enough how awful the bass on it is. Do not waste your time buying it. I strongly advise anyone to go to your nearest curry’s and try out some systems, at least you can take them back in person too if they’re rubbish. Seeing how bad this system is has put me off buying things like this online. Honestly please don’t waste your time and money. Go to a shop and try some!