Hifonics 100.4 going into protect

[DjDan101 10+ year member]

I just bought a Hifonics 100.4 amp about a week ago and it works fine most of the time but sometimes when I have it turned up it goes into protection mode and I can't figure out why. I had an SSL 400.4 on it before, which had no power filter so I removed it, and it never did so I'm assuming it's not the wiring. The gain is only turned up about 1/4 of the way and it's not getting hot... any ideas?

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[thevic24 5,000+ posts]

Make sure your ground(s) are good and tight.

What are you running on this amp?

 

[DjDan101 10+ year member]

Two Scoche 6 3/4 speakers. I can't remember what the model is, but they are just cheap $30 speakers from Walmart until I bring myself to buy the Fosgates that I'm going to get. And both of my amps run through my capacitor, so they are grounded to the same place, which I hope isn't bad. My JBL that's on my subs doesn't do it so I wouldn't assume it was the ground

 

[Timmy13091 10+ year member]

Make sure your ground(s) are good and tight.What are you running on this amp?

Ya I had same prob couple days ago and the ground just wasn't secure into the amp check that out good...

 

[Timmy13091 10+ year member]

Two Scoche 6 3/4 speakers. I can't remember what the model is, but they are just cheap $30 speakers from Walmart until I bring myself to buy the Fosgates that I'm going to get. And both of my amps run through my capacitor, so they are grounded to the same place, which I hope isn't bad. My JBL that's on my subs doesn't do it so I wouldn't assume it was the ground

And lose the cap!

 

[DjDan101 10+ year member]

Okay tomorrow I will make sure it's secured. The way I have my wires run, the ground does go directly down and the box kinda sits on it. I haven't screwed it down yet so maybe it got pulled on. It's also done with the cheap Boss wires that I ordered with the SSL. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif The copper feels soft. For future reference, don't get it. Haha.

 

---------- Post added at 07:19 PM ---------- Previous post was at 07:18 PM ----------

 

I know people disagree with caps, but even if it isn't doing any good, it looks cool nonetheless. It made my car chill out on the dimming headlights so I like to keep it around. Eventually, I'll get a high output alternator.

 

[thevic24 5,000+ posts]

Are you only running 2 speakers on the 100.4? Just using 2 of the 4 ch? or do you have the amp bridged?

 

[thevic24 5,000+ posts]

Ya I had same prob couple days ago and the ground just wasn't secure into the amp check that out good...

Having a bad(loose, paint, ect) ground can/will cause all kinds of issues.

 

[DjDan101 10+ year member]

I'm only using two of the channels. Once I replace the rear speakers, I'm going to use all four.

 

---------- Post added at 07:24 PM ---------- Previous post was at 07:24 PM ----------

 

Yeah I found out about the paint problems and such so I regrounded it to a good spot, but it might be lose on the amp so I'm going to fix that tomorrow.

 

[DjDan101 10+ year member]

Just wanted to thank you guys. I actually had to pack drums in my car and accidentally pulled the ground wire out, which reminded me to fix it. I haven't had any problems with it since then! Thanks a ton!