I bought one of these badboys yesterday and i've got a slight problem with it... The right deck/channel plays fine, perfect actually. But the left channel/left deck is not as loud as the right channel. Now, i've put the same tune on the left channel as i have on the right channel and it is STILL lower. I've rewired the setup, my decks, amp, mixer etc but it's still the same. What could be the problem? Anyone?