for some reason my subs just stopped working, on my headunit i used to have an option of setting the sub level from -15 to +15 but not the option is not availble at all , the amp for subs is on but they dont turn on an theres not setting. whats the problem?
subs- 2 12 type r
amp-zx1500.1
HU- kenwood excelon
subs- 2 12 type r
amp-zx1500.1
HU- kenwood excelon
