I got a set of 10" JL Audios hooded to an old school Orion HCCA 250 amp in a box I made. If I hooked the subs to their own sub I should not hear anything out of them but bass, right? If I turn down the other speakers so just the subs are playing I can hear other sounds through them. Granted they are faint but I thought that nothing but bass should come through them. I was thinking of getting a low pass crossover for the subs. That should fix it.....right?