sub cutting out

[lilrich 10+ year member]

Hi im new here with a frustrating problem. First off I have a Re audio dts 1000.1 amp hooked to 2 powerbass s12 s

That are dual 4 ohms each but I have it wired to the amp at 1 ohm to give me 400 watts per sub rms.

The problem im having is the system played real good the whole first day it was installed.

I was really impressed but since then it has been cutting down to half the db at times but at random would come back on at full power. At first I thought my gain was set too high so I went to adjust and upon tuning noticed one of.my subs was cutting out bad. I haven't checked the wiring since I have 2 downfire boxes in my truck

But wouldn't both stop playing or cut out since they are wired in series.

Anyone with any advise please help

Click to read more...

 

[audiobaun 5,000+ posts]

Hmm, have you checked your voltage with, and without a load lately?Free at Autozone/Orileys..Sounds like to me your output is not keeping up with the demand

 

[audiobaun 5,000+ posts]

look into the big 3?AGM battery? Before making a decision on ho alternator

 

[lilrich 10+ year member]

Agm battery? I guess ill try the big 3 first. I have a 4ga amp wire so I would need 4ga for big 3 right

 

[frogcase2002 10+ year member]

Agm battery? I guess ill try the big 3 first. I have a 4ga amp wire so I would need 4ga for big 3 right

There batts that dont leak. Better for systems and stuff. I would go with the biggest you can. Try to use 0 awg for the big 3

 

[calebkhill 10+ year member]

check the sub tensil wires. My sub did this exact thing and it was a bad spot in the tensil wire.

 

[lilrich 10+ year member]

What is the subs tensile wire? What do I do if it has a bad spot in it?

 

[calebkhill 10+ year member]

The two silver wires running from the +- on your sub and down underneath the cone. Look close for a break, rough spot or discolored spot. I saw a brownish spot and the wire didnt looki clean at that spot.

I clipped it and crimped a terminal there. But this may not be the best way to fix a tensil wire, i saw where people slder the wire..... Maybe someone will post who knows how to fix them.

Check the two wires first and see if they are broke or have any bad spots.

 

[lilrich 10+ year member]

You say you clamped a terminal there. What kind of terminal? Did it fix it?

 

[calebkhill 10+ year member]

Well do the wires look good?

 

[lilrich 10+ year member]

Well do the wires look good?

Well im at work right now so I haven't had the chance to look at em

But just wanted to know in case that is the issue.

There was a hole in the outside rubber thing I guess

where the drill slipped or something when my cousin was

Putting em in my box but I covered it with silicone.

The way the sub is acting it sounds like something is loosing connection

and I think its what you are talking bout.

 

[frogcase2002 10+ year member]

Well im at work right now so I haven't had the chance to look at em But just wanted to know in case that is the issue.

There was a hole in the outside rubber thing I guess

where the drill slipped or something when my cousin was

Putting em in my box but I covered it with silicone.

The way the sub is acting it sounds like something is loosing connection

and I think its what you are talking bout.

Have you even looked inside the box to see if there is just a wire loose on the subs or the terminal inside the box

 

[lilrich 10+ year member]

Yes that was the first thing I checked.. i also thought since its wired to 1ohm wouldn't a short cut

both speakers out??

 

[frogcase2002 10+ year member]

Well even if one sub would cut out the one that's working is still hooked to the amp .You just need to pull the subs out. Test them. Go all the way over them. And hook them up separate to see how they act

 

[lilrich 10+ year member]

Seems to be in the internal wiring of the sub. Voltage reads good to the speaker.

One thing I forgot to say I get a hum from from that speaker

before it cuts out. But the other speaker does fine and have had no

Issues with it.