Bass Issue

[Jimmy SV6]

Hi Fellow Jc peeps,

I was driving home from newcastle on the weekend, all of a sudden the bass kept cutting in and out of songs when i was play music on the way home, what could be the cause of this, any ideas of your head ?

[Vg-ute-mad]

Need more info.... Are we talking amps and subs?

[haydenvx]

dodge connection to the amp?like powerr or ground or remote connection falling out amp

[Philthy]

How loud was it at the time, how long was it cutting out for, and what gear are you using?

[commodore_4_life]

It could be possibly be the RCA leads... my mate had this same problem, turned out it was the RCA leads that came a little bit loose. Otherwise it could be the Trigger cable for the amp, with a dodgy connection...

[Jimmy SV6]

i am using good gear i ending up shelling out about 3K installed for some focal sutff. i have got a focal amp and sub with a alpine deck. it was probably on abit 22 i guess the music still played but the bass wasnt there any longer, its like the bass just cut out and didnt come back, it came back like once or twice than went dead i guess...

[swiftymcfeat]

Could be a crap load of things. Just get in there and check all the connections and stuff to begin with...

[badger__rox]

dodgey battery not powering the amps or alternator not chargeing the battery

[gonnaenodathat]

dodge connection to the amp?like powerr or ground or remote connection falling out amp

this is a common issue ! the remote wire from head unit to amp or if its drawing too much power, it will cut out but come back in soon after !

[Jimmy SV6]

so quite possible i dont have enough power, to drive the sub, not from the amp but from the actual connection.

[badger__rox]

has it always done this? or just recently?

[gonnaenodathat]

so quite possible i dont have enough power, to drive the sub, not from the amp but from the actual connection.

possibility that the earth is not great, also possibility amp isnt getting enough juice ! they need quite a bit ! i have a alpine v10 running a 2000w competition sub and its very thirsty on power...and i had it in my garage running off a gel battery with 2 sets of 6x9's (also 300w alpine) would flatten it or start shuttign off due to volatage dropping low... more noticeable when giving it some welly !

[VPplayer]

I pretty much have the same problem, always happens to me when i turn the volume up to much. People are telling me that a capacitor will stop it from doing that.
Maybe your in the same boat as me mate.

[gonnaenodathat]

if you want seriosu sounds, yo uneed the battery and alternator to match it ! along with correct wiring and shit loads of other stuff.. theres a few sites out there that will let you plan your install and give you the minimum spec's needed for opowr/wiring etc....have a search on the net !

[acarmody]

Unless it was installed incorrectly then I doubt it the battery or alternator. I had 1400wrms of bass and 600wrms of speakers running off a stock 100amp alternator and Bosch Gold battery and it would handle it fine, on extreme bass notes it would drop as low as 11 volts but it would never cut out.

Here are some possible solutions
1. Gain is too high, basically you are over-driving your sub amp and sending it into protect.
2. The amp is overheating and going into protect mode. To test this, run this at the same settings it cut off last time and then feel the amp, if it burns you then its too hot.

Is there a main power cable going to the backseat/boot and then using a distribution block to go to all your amps, if so then check the wire from the block to your amp, it should be at least 4 gauge. Also check the ground wire is tightened properly on both ends.

If you have had the gear installed recently then go speak to the installer.

[holdenboy]

Yep completely agree with acarmody here, i wont go into my old system but i rarely had any problems with it....granted i did have Optimas in the end but at the start i was using a stock battery and always used my stock alternator.

So theres no sound coming from the sub at all now?

Put a multimeter set to ohms on the amp's speaker terminals to check the impedance - something may have happened to the speaker wire at the sub or in the box.
Put a multimeter set to volts DC on the amp's power terminals to check the voltage. With the system off write down / take note of the voltage. Turn the engine and system on and re-check the voltage, should be sitting around 13.5-14.4v.
Check any fuses in the main power cable, could be loose and have a poor connection.
Check the amp's earth terminal, should be bolted tightly to a solid metal part of the car.

If you're not capable of carrying out these tests, take it back to the place you got it installed or if thats not possible take it to your local car audio shop.

[Jimmy SV6]

i was driving home yesterday i could hear a lil bit of bass, but it was just soo faint and it could hardly punch anything.... so it might be just the gain or something i will have to have a look see when i get the chance.

[StoneX]

You paid good money for the equipment and install... Take it back and tell the store what's going wrong.

[Jimmy SV6]

would it matter how long ago it was ?