help me!

[FISSD18 10+ year member]

Ok so I'm thinking my ground is just to long but let's get some opinions. I recently put in a new Kenwood ddx-419 and bought a new hifonics brz2400.1. I have it powering an 18" fi SSD fully loaded. Amp should be plenty for sub. So here's the problem. And this just started happening when i put the new headunit in and amp. I will start playing my song and bass will be hitting just fine "at a low volume" but as i turn it up to say 20, the system will sound as if it went into protect mode. But green light is still on on the amp and VERY little bass will still play. But sometimes the bass will go full out for a split second. My ground is a good foot and a half running to my 2nd battery and another foot or so running to the amp. Does to long of a ground sound like the right answer?

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[keep_hope_alive Premium Member]

No, the ground length is not an issue, it could be your ground connections, pics?

The amp is weaker than you think.

What impedance load are you running the amp at? How did you set gains? Pics of sub wiring?

 

[FISSD18 10+ year member]

Running amp at 2ohms, my gains are set at what hifonics says to start st. Pretty much all at 12o'clock. My level is set at about 3/4 way up. It just confuses me cuz it worked fine with my old headunit and my Hfi1500. Ground in same place and I haven't messed with sub wiring. I will upload pics tomorrow.

 

[mylows10 5,000+ posts]

i'd say its a power problem .not enough power supply or alt

 

[keep_hope_alive Premium Member]

Loose ground could cause it.

The manual cannot tell you where to set the gain, it's relative to the head unit pre-out voltage and head unit volume usage.