Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: M4-ATX Turn on thump

  1. #1
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116

    M4-ATX Turn on thump

    Hi all,

    I expect that this question has been answered already as I've found several threads complaining about the issue, but haven't found my solution yet. Here's my setup:

    - M4-ATX
    - Diamond Audio D3600.1 (sub amp)
    - Audison SRx2.1 (comp amp)
    - Image Dynamics IDQ10V3
    - Morel Tempo 6 two-way comp system

    I am getting a killer turn on pop when booting my computer. I didn't receive any instructions or paperwork (or even a box!) with my M4-ATX; nothing but the power supply, harness and turn on jumper. I took the liberty of looking up the manual online, and found that I can use jumper J6 to prevent amp turn on thump. Since I have two separate amps, here's how I hooked it up:

    I got a two pin (non-shorting) jumper and soldered a couple wires onto it (shouldn't I have received a jumper for this with the power supply, BTW?) Anyway the pin at the edge of the PCB is ground, inner pin is split into two wires and those are connected to the remote turn on leads (one for each amp).

    Alas I still have a massive turn on pop. I spent a lot of money on these speakers and amps and I know this isn't good for them. Did I do something wrong? How do I stop it from doing this???

    Thanks!

    Chris

  2. #2
    Newbie
    Join Date
    Jun 2009
    Posts
    2
    have you tried wiring the anti thump to one amp only first?

  3. #3
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116
    Bump!

  4. #4
    FLAC
    Join Date
    Jan 2008
    Location
    Dartmouth, MA
    Posts
    914
    Honestly, in my setup I just connected my amps to one of the power supply's 12 volt rails. It was simple and I knew it would work. Easiest way to do it without worrying about anything.
    My Nearly Complete Car:
    http://www.mp3car.com/vbulletin/show...ed-car-pc.html

    Micro Control Center... Control Your Car Across the Internet
    http://www.mp3car.com/fusion-brain/1...-internet.html

    Website: (It's a work in progress, really. All my projects have taken me from ever really developing it.)
    http://paulfurtado.com/

  5. #5
    Constant Bitrate
    Join Date
    Oct 2004
    Location
    Israel
    Posts
    147
    you need to setup the thump time using the configuration software
    connect the usb
    install the software from the m4 website
    and change the time to whatever you like ( default is something like 3 seconds.. )

    *be aware that from my experience the changes come to play only when i disconnected the 12v line and reconnected it after a couple of seconds
    HeadUnit : Car-Pc | Processor : JBL MS-8 | Front Stage : Woofer - Mpyre 65M , Mid - Dayton RS100-4 , Tweeter - Tang-Band Ceramic 25-1719S | Subwoofer : Hertz HX250D | Amps : A/D/S PQ10 , Hifonics Olympus XI , SPL AB03445 | Wiring : Sommer , Neutrik

  6. #6
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116
    What do you mean "connect the usb"? I didn't get anything with my M4 but the power supply in a bubble wrap bag and the harness/jumper for the on off switch...did I get jipped?

    Also, what is the website for the M4 where I can get the software? And Paul, you mean to tell me you connected your amps 12V constant to a wire from your PC's power supply? If so I hope you are joking! Maybe it's just me but I certainly wouldn't power ANY amp off that tiny little wire...

    Edit: Madboy BTW how do you like that soundblaster card? And how do you have it wired? I need to get one cause the AC'97 sound isn't cutting it with brands like Diamond Audio and Audison, lol...I am looking for one with RCA outputs, at least two sets (one mono and one stereo would be ok since my Diamond amp is a monoblock).

  7. #7
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116
    Oh rock sorry I missed your reply, no - I didn't try that. I could though

  8. #8
    Constant Bitrate
    Join Date
    Oct 2004
    Location
    Israel
    Posts
    147
    no its ok , the cable isn't supplied with the psu...

    take a look at the manual here :
    http://www.mini-box.com/M4-ATX

    there is a usb pinout
    get a motherboard usb cable ( the same as you connect to the front usb headers of your case )
    and connect it to the psu and motherboard

    explained here also :
    http://www.mp3car.com/vbulletin/powe...ur-m4-atx.html

    the software also can be download from this site..

    i think paul meant that the remote is connected to the 12v line from the molex , not the power line

    about the sb card
    yeh i love it , i think it has the best money/quality ratio..
    it doesn't got rca outputs
    so i made ( not me actually , a studio equipment company ) custom 3.5mm to rca cables with good quality wiring ( sommer ) and plugs ( neutrik )..
    you can also use any 3.5mm to rca you want
    and if youre using 2 way passive front + sub you shouldn't have any problems..
    HeadUnit : Car-Pc | Processor : JBL MS-8 | Front Stage : Woofer - Mpyre 65M , Mid - Dayton RS100-4 , Tweeter - Tang-Band Ceramic 25-1719S | Subwoofer : Hertz HX250D | Amps : A/D/S PQ10 , Hifonics Olympus XI , SPL AB03445 | Wiring : Sommer , Neutrik

  9. #9
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116
    Excellent, thank you for the well-informed response. I'll try this stuff this weekend. Good choice on the Hertz tweeters, BTW. That's the "budget" brand of Audison. I absolutely love my little Audison 2channel, and it's the first of their brand I've ever used. If you ever change your front stage, I might recommend Morel for the mids. I used a set of high end Focals in the past and am more impressed with the 2nd model up from Morel, even though there are like 4 others above this model.

    I can't imagine what a set of the top of the line model would sound like with a top of the line Audison...but then again I can't imagine spending $4000 on just a set of components and an amp for them

    Could you give me a few more details on how you have your soundcard hooked up? I found a couple studio quality ones from mAudio that have several sets of RCA outputs and that looks really promising...

  10. #10
    Constant Bitrate
    Join Date
    May 2008
    Posts
    116
    One other question...I see that the M4 software is a .exe file. Does that mean I'm screwed since I'm using Ubuntu Linux? Or maybe I just need to configure the power supply outside the car from a windows PC? That wouldn't be a huge issue, since I work for an electronics manufacturing company and have access to lots of nifty toys

Page 1 of 2 12 LastLast

Similar Threads

  1. Replies: 3
    Last Post: 04-28-2006, 11:51 AM
  2. morex 80wpsu and reg ATX cable dilema!!
    By surfy in forum Power Supplies
    Replies: 1
    Last Post: 08-16-2005, 09:06 PM
  3. Micro ATX or ATX
    By custardbomb in forum Power Supplies
    Replies: 0
    Last Post: 08-14-2005, 07:48 AM
  4. Turn on hiss/not thump. Weird. Dont flame me, read.
    By live2themaxuk in forum General Hardware Discussion
    Replies: 4
    Last Post: 09-01-2004, 03:25 AM
  5. ATX and AT motherboard
    By Beavis in forum Power Supplies
    Replies: 1
    Last Post: 05-10-2001, 03:22 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •