Why's my amp not working? do i need a new one?

[noomoo]

Hi there,
well its safe to say i am new to this stuff, thats why i need help.
I have just bought a new mobile dj kit for my party on tomorrow night and my amp seems to be not working, without it means no musid and that will not make much of a party! :bang: I have a Skytronic TEC6500 Amplifier (250 + 250 watts. when i was playing music one speaker cut out. I thought it was the me pushing it to far and poped the protection circut in the amp. so after opening up the amd i noticed two (5A 250v 20mm slow blow glass fuses had blown inside. So i went back to the store i bought it from and got a pack of ten. :) sorted, NOT... When i got back i replaced the blown fuses with new and turned it on and they just blew again. :bang: i tryed it again, but just the same, now i cant get it to work so i have no music for the party tomorrow night, and the store i bought the goods from are closed for the weekend. What do i do? or Do i need a new Amp?

The rest of the dj kit is as follows...
Numark Fusion 111 CD Player / Mixer Package,
Skytec 15 Inch Speakers (pair) with TEC6500 Amplifier.

[Jiggles]

Hello why not introduce your self in the newbies section!

It sounds like to me there is a fault somewhere or there is a short in a speaker? I have the same amp!

[Dragonfly]

I wouldn't get a new amp until you have spoken to the tore is the amp under warranty??? or it maybe a simple thing that has blown .... not the same but i had a light effect did exactly the same thing , it cost about 40 quid to get fixed.

my advice get out the yellowpages and see if you can hire an amp for tomorrow night ...

and some other advice get the other one fixed anyway and get a second as back up ....... very very important.

[Penfold42]

Hello and welcome.......

Where are you based.........??

[colint]

Hi I think you need to hire an amp, and then take the one you've got back from whence it came and get it changed! even if you have a dodgy cable or something the amp shouldn't behave like this

and just in case for future referance red means STOP!

[spin mobile disco]

Sounds like an impedence problem. What ohms are your speakers and how are they connected? Also check that the volume is down as low as possible when first turning system on.
This is the best way of running your system. make sure all the faders on mixer are at minimum, make sure the knobs on the amp are on minimum. First turn on amp them mixer then decks. Turn amp volume to about half way. Then move the master fader on the mixer to the half way point. Then press play on a deck and slowly raise volume on the appropriate deck until you start to get audio.
You are now running at background levels this should give you an idea if the amp is faulty or not. Keep this running for an hour this should make the amp warm not hot. Most people don't know that a breaking in period is required on most new equipment before pushing it hard especially speakers.
If the fuses blow at low volume then it is a definate fault, check the lead , if iec make sure a good connection is made between the connectors as with cheaper makes this can cause problems.
Make sure that the little red clipping light on your amp never comes on. If it does come on you are pushing your system to hard and it will fail.
Cheaper amps have very little protection on them and simply rely on fuses to protect them. This is normally enough if you never allow the amp to clip.

[BeerFunk]

Hmmmm... unusual. I would say there's a very good chance that the amp is faulty. Have you tried running the amp for a while without connecting it to anything?

[rob1963]

Have you tried running the amp for a while without connecting it to anything?

...with the masters on nil, of course

[PropellerHeadCase]

First turn on amp them mixer then decks.

Surely that would be reverse order for turning them on? Even with the faders at nil I've always understood that you turn on from the player end of the audio chain down through to the amp, and when powering down it's vice versa.

[Excalibur]

Surely that would be reverse order for turning them on? Even with the faders at nil I've always understood that you turn on from the player end of the audio chain down through to the amp, and when powering down it's vice versa.

I too would agree with Mr Propeller on this one.

[BeerFunk]

Yep, it is definitely good practice to start at the 'beginning' of the chain (ie. your decks) - but only to avoid sending clips to your amp (which theoretically could happen if you power on a device attached to the amp).

[CRAZY K]

Hi there,
well its safe to say i am new to this stuff, thats why i need help.
I have just bought a new mobile dj kit for my party on tomorrow night and my amp seems to be not working, without it means no musid and that will not make much of a party! :bang: I have a Skytronic TEC6500 Amplifier (250 + 250 watts. when i was playing music one speaker cut out. I thought it was the me pushing it to far and poped the protection circut in the amp. so after opening up the amd i noticed two (5A 250v 20mm slow blow glass fuses had blown inside. So i went back to the store i bought it from and got a pack of ten. :) sorted, NOT... When i got back i replaced the blown fuses with new and turned it on and they just blew again. :bang: i tryed it again, but just the same, now i cant get it to work so i have no music for the party tomorrow night, and the store i bought the goods from are closed for the weekend. What do i do? or Do i need a new Amp?

The rest of the dj kit is as follows...
Numark Fusion 111 CD Player / Mixer Package,
Skytec 15 Inch Speakers (pair) with TEC6500 Amplifier.

I would have thought new modern amps would work despite any abuse ?

Get the amp tested by the dealer.

CRAZY K

[spin mobile disco]

The amps when turned on give the biggest surge in power. When using digital decks liek I do it is best to turn on heavy usage items first to protect more delicate items. If all faders are set to 0 this shouldnt cause any speaker noise.

[PropellerHeadCase]

Ahh, but all my delicate electronics are on surge protection anyway :D

[BeerFunk]

The amps when turned on give the biggest surge in power. When using digital decks liek I do it is best to turn on heavy usage items first to protect more delicate items. If all faders are set to 0 this shouldnt cause any speaker noise.
If you've got a surge coming out of the amp's input, you're in big trouble regardless! :D

[theoloyla]

A very simple explanation of why an amp may keep blowing may be a short circuit on the speakers or speaker leads.

[CRAZY K]

A very simple explanation of why an amp may keep blowing may be a short circuit on the speakers or speaker leads.

Dont modern amps have built in sa***uard rather than blow a fuse?

My old mixer amp which is coming out of retirement for tonights gig to give it a run--( bit like me) has got a protector on it so if you do short the speakers a red warning light comes on and I believe protects the amp.

I have done that a few times and its still going no problem.

Remember this amp is 20 yrs old!

I really think this is a duff amp you have bought---unless you are doing something very silly:eek:

Repeat--get the dealer to check it--errr why has my post been modified?

CRAZY K

[nigelwright7557]

Try replacing the fuses but disconnect the speakers before powering up again.

If the fuses blow then it aint the speakers (something in the amp)

If the fuses dont blow then you have either a short on the speakers or the speakers themselves have fried and shorted.

Always remember to have speakers rated much higher than the amp.
I have seen 100 watt amps put out considerably more that 100 watts and fry speakers.

[colint]

The amps when turned on give the biggest surge in power. When using digital decks liek I do it is best to turn on heavy usage items first to protect more delicate items. If all faders are set to 0 this shouldnt cause any speaker noise.

You should always turn on you system from the souce down i.e cd, mixer, crossover/eq amps

and to turn of is the same in reverse

and most amps nowdays (even cheap one) have some kind of antisurge!

[Solitaire Events Ltd]

Always remember to have speakers rated much higher than the amp.
I have seen 100 watt amps put out considerably more that 100 watts and fry speakers.

That's not the advice given by most people in the know. :confused: Complete opposite in fact. If you are clipping the amp and sending a distorted signal, then that could also damage the speaker. Better to have an amp with a certain amount of headroom.

[Solitaire Events Ltd]

Eh????

[Corabar Steve]

I have no idea how that happened. I'll put it where it belongs.