Amp Problems

rtbiscuit · March 17, 2007, 19:01

ok i have bought Dans amp and sub to day and we have been woring all afternoon to fit it (when i say we i mean dan fitted it all and i sat around smoking and poking fun at his ass!)

we got everything wired in, but when we came to test it we have had problems getting the amp to power up.

we ran a control lead from the battery straight to the amp, and if you connected it the amp would come on for a split second and then off. if you left it on nothing, but if you removed the lead and waited for a minute and re connected it would flash on briefly.

we ended up connecting this lead into the airiel power on off connection (as directed by stu) but now nothing.

anyone got any suggestions?

Anonymous · March 17, 2007, 19:26

sounds like theres either a wiring problem or an internal problem with the amp and its going into Thermal cutout.

Try just getting it to power up without any audio inputs / outputs first.

heathstimpson · March 17, 2007, 21:08

Quote from: "rtbiscuit"anyone got any suggestions?

Get someone that knows what they are doing to help you next time s:lol: :lol: s:lol: s:lol: :lol: s:lol: s:lol: :lol: s:lol:

Only messing as Dan's a good lad for doing all the hard graft as you supervised. Are you sure the power supply earth/neutral is good s:?: :?: s:?:

rtbiscuit · March 17, 2007, 21:52

pretty sure that its all wired up correct.

its a mono amp. and the power is connected to the power, and the rca leads are connected correctly

and the amp remote wire is connected to the ariel wire

the sub wires are then connected to their section.

will try the power up without inputs and outputs!

mr2mark · March 17, 2007, 22:03

I'm sure some radios only power the antenna for a few seconds until the antenna is fully erected .... maybe wrong but I'm sure Ive came across this before wiring amps in. Look on the back of the radio for a remote wire ...maybe blue in colour ?

rtbiscuit · March 17, 2007, 22:06

there wasn't one on the back of mine!

option 2 is to wire a switch in to a wire running dirrect from the battery to the amp!

Anonymous · March 17, 2007, 22:10

Did you not get my text earlier, Rich? Y'know that black wire we tapped into for the remote... Well, if I'd bothered to come inside and read what Stu had sent me and gone further than the first couple of posts it says that it's actually the blue/white wire we should've tapped into s:oops: :oops: s:oops: That's not a huge issue though, as that can be changed easily.

The issue still remains with the amp not holding power, which is a right mystery. And you're right Heath, although you have no idea as to how ironic the whole fitting thing this afternoon was: Y'see, when I had it all installed in my car by a local company I did that because I had no idea what I was doing. Seems quite funny how I was prepared to give it a bash when it wasn't my car... s;)

s;) s:lol: :lol: s:lol:

Oh, and slightly OT but I found Rich's secret hidden copy of Westlife's Greatest Hits behind the head unit and a hidden pr0n mag underneath the pax side mat. s8)

s8)

You didn't think I'd let you get away with that, did you Rich?! s:D

s:D

rtbiscuit · March 17, 2007, 22:22

oh how i love prawns and westlife will sat in my car!

every one has their vices, now you all know mine! s:oops: :oops: s:oops:

(it was a nuts magazine, and he cd must have been the first owners.

does that mean i will need to take that bloody head unit out again!

markiii · March 17, 2007, 23:55

Quote from: "Ekona"Did you not get my text earlier, Rich? Y'know that black wire we tapped into for the remote... Well, if I'd bothered to come inside and read what Stu had sent me and gone further than the first couple of posts it says that it's actually the blue/white wire we should've tapped into s:oops: :oops: s:oops: That's not a huge issue though, as that can be changed easily.

The issue still remains with the amp not holding power, which is a right mystery. And you're right Heath, although you have no idea as to how ironic the whole fitting thing this afternoon was: Y'see, when I had it all installed in my car by a local company I did that because I had no idea what I was doing. Seems quite funny how I was prepared to give it a bash when it wasn't my car... s;) s;) s:lol: :lol: s:lol:

if you got teh qwrong wire for remote turn oin then thats why it won'y hold power

Oh, and slightly OT but I found Rich's secret hidden copy of Westlife's Greatest Hits behind the head unit and a hidden pr0n mag underneath the pax side mat. s8) s8)

You didn't think I'd let you get away with that, did you Rich?! s:D s:D

rtbiscuit · March 18, 2007, 00:33

mark we tried it straight from the battery to the amp first, it would light up momentarily, but then power down again!

mr2mark · March 18, 2007, 14:52

Oh right ..... I dont know how you tested it but as long as there is a GOOD earth and a GOOD live you can simply put an inch of wire from the main live feed to the rem connection it should work , If this is how youve done it , it must be a problem with the amp (heat cut off etc)......

rtbiscuit · March 18, 2007, 15:22

would runnig a resistor in the power cable stop it from cutting out!

mr2mark · March 18, 2007, 15:40

Thats a bit past my knowledge .... but I cant really see how that would work .....

markiii · March 18, 2007, 18:18

Quote from: "rtbiscuit"would runnig a resistor in the power cable stop it from cutting out!

nope but expect a very warm resistor

rtbiscuit · March 18, 2007, 18:20

i think stu will be at liz's on tuesday, i will see if i can pop round and get him to have a look

heathstimpson · March 19, 2007, 12:20

Quote from: "Ekona"Did you not get my text earlier, Rich? Y'know that black wire we tapped into for the remote... Well, if I'd bothered to come inside and read what Stu had sent me and gone further than the first couple of posts it says that it's actually the blue/white wire we should've tapped into s:oops: :oops: s:oops: That's not a huge issue though, as that can be changed easily.

The issue still remains with the amp not holding power, which is a right mystery. And you're right Heath, although you have no idea as to how ironic the whole fitting thing this afternoon was: Y'see, when I had it all installed in my car by a local company I did that because I had no idea what I was doing. Seems quite funny how I was prepared to give it a bash when it wasn't my car... s;) s;) s:lol: :lol: s:lol:

Oh, and slightly OT but I found Rich's secret hidden copy of Westlife's Greatest Hits behind the head unit and a hidden pr0n mag underneath the pax side mat. s8) s8)

You didn't think I'd let you get away with that, did you Rich?! s:D s:D

That's how you learn Dan by having a go; your'e a top bloke s:wink: :wink: s:wink: So Rich is into Westlife and male porn eh s:lol: :lol: s:lol:

Liz · March 19, 2007, 13:25

We have cancelled tomorrow for now- I thought that we could do this on a weekend sometime and the Braintree massive and anyone else could meet up for a pub lunch, I have got to buy a little powered sub to put in the car as well.

rtbiscuit · March 19, 2007, 19:16

no problems liz! will try a few things out at the weekend to see if i can get it working.

(it wasn't male p0rn it was a nuts magazine my mate had left in there after the trip back from wales a few weeks ago!) s:oops: :oops: s:oops: honest s:shock: :shock: s:shock:

also just wondering, in are attempts to splice into the ariel power dan spliced into the black wire instead of the blue and white. s:roll: :roll: s:roll:

was wondering what is the black wire? s:? :? s:?

as now my car sounds like it has a super charger. i get a whining sound through the speakers when i accelerate and deaccelerate, its quiet addictive. s:twisted: :twisted: s:twisted:

mr2mark · March 19, 2007, 20:45

thats what mine was like ..... a suppressor works to get rid of that annoying sound s:x :x s:x

GSB · March 19, 2007, 21:39

Guys, when amps do this its usually due to a wiring issue. But, it will probabley be on the output stage... It works like this:

Amp powers up, and starts to amplify whatever signal is coming in.

Current being drawn out of on or other speaker terminals is way over the safe level, so the amp shuts down...

I did exactly the same thing a few years ago, and it turned out that I'd shorted out one of the speaker cables... disconnect all your speakers from the amp and try it again. If it still shuts down, then your amp is toast. If it powers up fine, then you need to look at how you wired the speakers, and make sure that the speaker cables aren't damaged.

rtbiscuit · March 19, 2007, 21:53

mr2mark - hopefully when i wire up to the correct power supply control lead that should stop the supercharger sound!

but if it doesn't what is a suppressor, hats it look like and where do i fit it!

is it like a silencer on a gun, and if so, where have they hidden the gun in my car s:twisted: :twisted: s:twisted:

GSB - cheers for the advice

Anonymous · March 19, 2007, 22:08

If the amp is toast, no refunds. s;)

s;)

Only kidding mate, I'll obviously refund you if that's the case

rtbiscuit · March 19, 2007, 22:09

no probs ekona!

lets just see if i can get it to power up first! will try at the weekend!

mr2mark · March 19, 2007, 23:19

I thought the whining noise was something to do with the amps being too near the charging system of the car..... most engines are at the front and amps in the rear but my 2 amps are situated in the rear storage which is inches from the engine bay....... A suppressor does look a bit like a silencer .... the guy at MAPLIN ELECTRONICS told me this wouldnt work..... I fitted it in the car park and much to his amazement it worked !!!
Cant remember but I think it is wired before the amp in the main power feed cable..... and wasnt any more than a tenna s:lol: :lol: s:lol:

kanujunkie · March 21, 2007, 10:12

Quote from: "markiii"
Quote from: "rtbiscuit"would runnig a resistor in the power cable stop it from cutting out!

nope but expect a very warm resistor

actually yes it would effect it as Power=I2R where the 2 means the currents squared, but yes an incorrectly loaded resistor would get a tad warm, but then a correctly loaded one wouldn't