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1714 Views 12 Replies Latest reply: Oct 29, 2012 11:44 PM by matteos93 RSS
Dobie40 Just Startin' 5 posts since
Apr 2, 2010
Currently Being Moderated

Apr 2, 2010 5:48 AM

ANOTHER OVERHEATING HD147

So, is there a fix for the overheating issues with the HD147? Pretty crappy that my Spider 3 head is more reliable than this HD147.

The head will get hot after about 20 minutes at high volume and shut off for a couple of minutes. The volume will slowly come back up. The heat sinks are almost too hot to touch. My outlets are good so not a power problem. Im running 8 ohms into a Line6 stereo cab. Any fix for this problem?

Thanks

  • Line6Andy Line 6 4,345 posts since
    Jun 5, 2006
    Currently Being Moderated
    Apr 5, 2010 5:44 PM (in response to Dobie40)
    RE: ANOTHER OVERHEATING HD147

    Are you sure that the setting you are using is a 8 ohm setting (instead of a 4 ohm mono for example?)  Which Line 6 cabinet are you using?  Are you running stereo or mono?  Have you tried another cabinet to see if that changes anything?

       

      Please see the following link for more amp and cabinet trouble shooting:

       

      Amp Troubleshooting

      http://line6.com/community/docs/DOC-4488

       

      Cabinet Connection and Ohm F.A.Q.

      http://line6.com/community/docs/DOC-4410

       

      Video Tutorial: Line 6 Head and Cabinet Connections

      http://line6.com/community/docs/DOC-1565

       

      If you are still having trouble you will want to take your unit for service:

       

      Product Repair

      http://line6.com/community/docs/DOC-1606

      • rodschlock Just Startin' 12 posts since
        Sep 29, 2006
        Currently Being Moderated
        Apr 14, 2010 7:31 AM (in response to Dobie40)
        Re: RE: ANOTHER OVERHEATING HD147

        i totally agree with the insane on the hd147 being shitay to put it mildly.i hate it. but i do love the hd147 especially at loud big boy volumes. i say try another cab and don't even start with the insane cause it sounds to me like somehow something went horribly wrong with that model. at least on mine it does. try the bomber uber.  treb and prescence below 5 mids between 6-8, bass 5 or anywhere you want. the drive is good anywhere from 6-max. i always end up at 10 with it. crank the channell volume up to 11. if you add a bit of the compressor through the midi tweaks mines around 21/6 it really puts some hair on them balls. personally i haven't been able to get my master volume past 5. it's unbelievable.thers almost a sweet spot it seems like around 3 where it just starts getting better and better the higher you go. kinda like a tube amp sounding better the louder it is. i ******* love it. my cab is a randall warhead w/vintage 30's and i got it wired up for 4ohms stereo. the 1st time i cranked it up i was using th same cab in mono @ 8ohms. even w/the compressor up a bit it didn't really cut it. i had the master pretty much pegged around 9. soon as i wired it up for 4ohms stereo it is scary ******* loud. and i love loud. i play a dean epv and an ltd ec-1000 both w/emg 81s'  i don't know if you've already tried all the amps or not. i got the impression the insane was the one you were trying to shape. and i'm pretty sure there's no way to get that sounding good i have a spyder 2 and the insane is insane. like it's name it's what you would expect. i was a bit freaked out by the hd147's insane at 1st. then realized i had 31 more models to try. the other one that is good be da big buttom. it was my favorite when i 1st got it. it seems a lot of people use it as their main metal tone. i only use those two the bomber and the big bottom. thats it. i've tried and tried w/ the treadplate, the criminal, the insane, and there's a couple others i can't think of. that just never sound quite right.there's tons of great cleans you can get too which is'nt even that important to me. but it is nice to have a clean channel for once. i mainly play 80's- 90's thrash metal kreator/slayer all that good ****. i couldn't be happier w/this amp. so far, so good..........so what.     

          • rodschlock Just Startin' 12 posts since
            Sep 29, 2006
            Currently Being Moderated
            Apr 19, 2010 6:50 AM (in response to Dobie40)
            Re: RE: ANOTHER OVERHEATING HD147

            i used to have a peavey similar to what your talking about. with the sheffields. that's probably why you're getting so pieced about the cab mods. when i set the cab bypass on mine it sounds kinda dumpy too. i use the vintage 30's setting even though that's what i got in my cab. it really should sound the same as the bypass but it's not even close. i'm not sure why the spider cab would sound so bad. i had a warhead half stack just like your rhythm player and. you should be smokeing that thing. i'm still using the warhead cab. but the head i gave away for nothing after i got the hd147. paid just over a grand for the warhead. i got the hd147 for 425 on ebay. i gave the warhead to someone i didn't really even know for $0. check this out. when i finally got the cab wired up right and got my whole setup somewhere where i could crank er up. the speaker cables going into the cab would blow out of the jacks. thats how loud these fuggers are. i thought just one of the jacks was probably wore out cause they are plastic and all. (but they never came out when i had the warhead plugged in). it was pretty annoying every time the cable blew out. so i decided for a quick fix to tape the bastege down. all taped down i really got to crank it for a minute or two anyway. then the other one started blowing out. i ended up buying some locking jacks and now they are locked in and i couldn't even imagine there will be a need for the master to be over 5 ever. u gotta tweak the settings with line 6 edit too.if you haven't done that yet i highly recommend it. good luck man i hope you get to hear the thing sound like it should. let me know how it turns out.

              • rodschlock Just Startin' 12 posts since
                Sep 29, 2006
                Currently Being Moderated
                May 5, 2010 6:51 PM (in response to Dobie40)
                Re: RE: ANOTHER OVERHEATING HD147

                you gotta hook it up to your computer w/the midi to usb cable. use the line 6 edit and then you should be golden. heres a screen shot of what one of my favorite patches looks like. i would try the line 6 big bottom or the bomber uber to start with. i think they are the best ones. i would really stay away from the insane mode but you might be able to get it where you want with the line 6 edit.   20100505182641.jpg

  • Line6Andy Line 6 4,345 posts since
    Jun 5, 2006
    Currently Being Moderated
    Apr 6, 2010 2:15 PM (in response to Dobie40)
    RE: ANOTHER OVERHEATING HD147

    Hello,

        The 412S has a unique configuration, with "stereo" 16 ohm, 8 ohm mono, stereo 4 ohm, and 2 ohm mono.  Have you check the cabinet with a meter to ensure the ohm loads are the same as the label?  a bad speaker can throw the ohm load off and potentially damage the head.  You may want to try running the head and cabinet at 16 ohm stereo to see if this makes a difference.  If this is the Spider II cab the ohm load is 8 (with speaker cables coming out of each side of the power amp), but it would be a good idea to check the cab ohm loads either way.  Let us know what you find.

  • matteos93 Just Startin' 3 posts since
    Jul 1, 2009
    Currently Being Moderated
    Oct 29, 2012 11:11 PM (in response to Dobie40)
    Re: ANOTHER OVERHEATING HD147

    So I've had this similar problem for about a yr now where it cuts out and sounds all crappy to where u can't even sustain a note... I actually forgot I had an account, and also forgot about these forums. But with that being said, I think I figured out what was wrong with my HD147, and Just wanted some confirmation by anyone who would know a lil bit more about this than I. I came to a conclusion that its my power PCB and heat sink. When I had 1st got the head a lil over 3 yrs ago. It was amazing.. But me not knowing **** about any wattages and ohms. I know I jacked it up pretty bad.

     

    I played it out of a shitty ibanez cab rated at 200 watts which I thought was good .. So I kept it a 16 ohms..

     

    But now that I know a lil more than what I did before. I wanted to see if playing it out of another shittier cab by fender rated at 300 watts would help.. I plan on upgrading big time soon but for now I just wanted to see if this will do. Since the head is 300 watts

     

    Can anyone tell me how much it would cost to repair it, knowing that its the PCB and heat sink.. So I'll know how much to save up >_<

     

    Thanks

    • matteos93 Just Startin' 3 posts since
      Jul 1, 2009
      Currently Being Moderated
      Oct 29, 2012 11:44 PM (in response to matteos93)
      Re: ANOTHER OVERHEATING HD147

      Also, what would be a perfect set up to get the maximum sound of my head and speakers

       

      Because I'm still trying to Grasp the whole understanding of mono and stereo.

       

      The set up I have now is the head is at 4 ohms with 2 speaker cables coming from the mono side to a cab that is rated at 8 ohms and has two speaker cable connections.

       

      It says its rated at 300 watts but I'm not sure what ohms it would be.. I'm hoping its would be more that 8 ohms or so.

       

      Keep in mind that I would want the fullest that my amp can run without damaging it once I get it repaired.

       

      I play it only on the insane settings cuz the genre requires it lol. So I need some balls to add to it. If I haven't already

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