Help I think I've screwed up

[Shadow Moses]

Looking for some help from you more experienced folk on th forum.

I built a couple of subs over the weekend, they sounded very good, I tried different placement and in doing so accidently managed to touch two banana plugs together whilst everything was up and running. The banana plugs sparked and now the amp I was powering em with sounds like crap.

It does power up and I can get sound from it but it sounds terrible. The amp is a Crown xls 1000.

Have I screwed something up guy's?
Neil

[Spectral Morn]

:sofa: yes.

[RothwellAudio]

Quite possibly, yes. Some amps will survive a short circuit at the output - some won't. You may have DC on the output too, so I wouldn't connect them to any speakers. Check for DC on the output and if there is any (more than about 100mV) there's definitely a serious fault. Even without DC it sounds like the amps will needs repairing.

[struth]

you might get lucky and it is fused but otherwise its in need of the doctor

[Firebottle]

Hi Neil, when are you coming round? :doh:

Give me a bell mate :D

[Shadow Moses]

Thanks all whatever's happened it doesn't sound good at all!!

Alan thanks buddy will give you a bell a bit later mate we're out shopping at the mo

[hifi_dave]

Crown amps are built like Soviet tractors, so it might just be a fuse. Check before plugging into any speaker.

[YNWaN]

If it's a fuse how does it sound like anything?

[hifi_dave]

I have had amps sounding 'garbled' with a blown fuse.

[Puffin]

It appears there is a reset button on the rear of these amps? Not sure if that would help. These are Class D amps and some Class D chips are not happy when you short the speaker outs. There is a Crown Manufacturers vid on YT about a factory reset, looks like you have to connect it to a laptop.

[Shadow Moses]

I have had amps sounding 'garbled' with a blown fuse.

That's just how it sounds,
Alan's going to have a look at it for me this evening, hopefully he can work his magic.

[YNWaN]

I have had amps sounding 'garbled' with a blown fuse.

How odd - presumably the fuse wasn't in the output then.

[RothwellAudio]

How odd - presumably the fuse wasn't in the output then.
Fuses can be almost anywhere but between the power supply and the audio circuit is probably most common.

[Firebottle]

Just an update, I've checked this over, there are no fuses at all just an overcurrent trip on the mains input. There are protection relays on each output.

Seemed to be distorted on first test, may have been poor connections. Once set to stereo and bypass filter it is working.

Lucky escape I think, it was being used in bridge mode so no short to earth/common :cool:

[anthonyTD]

Nice one Alan.:)
A...
Just an update, I've checked this over, there are no fuses at all just an overcurrent trip on the mains input. There are protection relays on each output.

Seemed to be distorted on first test, may have been poor connections. Once set to stereo and bypass filter it is working.

Lucky escape I think, it was being used in bridge mode so no short to earth/common :cool:

[RobbieGong]

Result !! :thumbsup:

[Shadow Moses]

Just an update, I've checked this over, there are no fuses at all just an overcurrent trip on the mains input. There are protection relays on each output.

Seemed to be distorted on first test, may have been poor connections. Once set to stereo and bypass filter it is working.

Lucky escape I think, it was being used in bridge mode so no short to earth/common :cool:

Yeah thanks again Alan for having a look at it
Don't know what is do without ya sometimes :thumbsup::thumbsup: