Xenon 100.4 Issue

BEAVER · Post by **BEAVER** » Mon Jul 07, 2008 3:59 pm

I have a PG X100.4 with a strange noise issue. The noise comes from within the amp itself and is not reproduced within the music. It's a hum, if you will.

It only happens the very first time I start my car every morning and is silent within a minute or two... strange.

Any ideas?

Post by **AVICJR** » Mon Jul 07, 2008 4:28 pm

It's probably just the fan. Sometimes the fans on the Xenons can be unusually loud at start up. Shouldn't be a problem.

fordtough1 · Post by **fordtough1** » Mon Jul 07, 2008 9:26 pm

I agree, the fan on my 200.2 is pretty loud for about a minute when you first start it up, but it goes away. Oddly enough the one on my 1200.1 is quiet...

Welcome to the Phorum by the way.

Post by **Bfowler** » Tue Jul 08, 2008 8:08 am

^yep, the 2 and 4 channels have a "start up" sequence. its just your fan

BEAVER · Post by **BEAVER** » Tue Jul 08, 2008 9:07 am

Thanks guys, but are you sure?

I mean, I can here the fan spool up for 3-5 seconds everytime I power up the system... but this is a fairly loud hum that lasts for 1-3 minutes, but only occurs during the very first time I power up any given day... the est of the day, it won't do it.

My 600.1 doesn't make any noise at al.

Post by **Bfowler** » Tue Jul 08, 2008 9:18 am

I'm not SURE, i'm not there to listen so i'm just making the best guess i can.

the mono blocks"s fans DO work differently then the full range amps.

1-3 minutes does sound long. is your trunk especially hot? maybe it just has to blow out built up heat?

also, you might have dust/debris in the fan making it louder?

(just throwing up possible ideas)

you might PM VW337 or Roland. the were/are PG techs that had first had experience with designing the amps and could probably shed more light.

BEAVER · Post by **BEAVER** » Tue Jul 08, 2008 9:29 am

Thanks for the heads up. They're not even in a trunk, right behind m head in my pick-up. If they were in a trunk I probaby would have never even noticed it.

I'll probably just keep an eye (ear) on it to make sure it doesn't get any worse... Like I said, so far it doesn't seem to be hindering the performance any...

fordtough1 · Post by **fordtough1** » Tue Jul 08, 2008 7:04 pm

Bfowler wrote:^yep, the 2 and 4 channels have a "start up" sequence. its just your fan

I wondered why my 1200.1 wasn't as loud at start up as my 200.2...

dejo · Post by **dejo** » Fri Jul 18, 2008 2:06 pm

I have a 200.2 that did the same thing. ended up having some issues with the amp, not related to the fan. and sent it in for a repairbut havent powered it since. and has a new board anyway so would assume that the fan is new now as well. I think the bearings on the fans get worn and make some noise until they have ran for a while, seen computer fans do the same thing.
you dont like the amp so sell it to me.

BEAVER · Post by **BEAVER** » Sat Jul 19, 2008 10:52 am

I love the amp and ironically enough, since posting here, I've rarely had this problem... I'm sure this amp is going to last me a long time.