I have a SAE-1000D pushing my front components. I had the amp set to HPF and dialed the filter in to around 125 Hz. I noticed recently that my midbass was non existent. Honestly it may have been that way for weeks and I may not have noticed. My truck is usually hauling around two kids, so no turning up the radio. Anyway, I got to troubleshooting last night trying to determine what was wrong. On a few occasions at high volumes I would start to smell burning. One day last week it was so bad I nearly pulled the truck over to look for fire! It was really, really strong and I had to turn the system off for the smell to go away. I thought it was the VC's in my comps (5+ year old CDT EF-61's) and was really kinda trying to blow them so I'd have a reason to upgrade. Now I'm not so sure. In troubleshooting last night, I noticed the amp smells pretty strong of electrical scorching. The thing I'm really questioning though is how the subsonic filter works when you use the HPF on the amp. I had the subsonic turned all the way up to 60 Hz because I didn't see the point in sending the ultra low signals to front comps. Last night in tracking down the midbass problem, I turned the subsonic filter just to see if anything would happen. HOLY CRAP did it happen!! The midbass was back with authority!! So, my long winded question...is the subsonic filter supposed to have any effect when the amp is set to HPF mode? If not, I'm thinking the smell I'm getting might be from the amp. I played it at my max volume (about 70% of my head unit volume) on the way to work this morning. After 4 songs it was moderately warm, but certainly not enough to concern me.
