How to fix amp
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=78868
Printed Date: June 07, 2025 at 11:07 PM
Topic: How to fix amp
Posted By: dspoppa
Subject: How to fix amp
Date Posted: June 08, 2006 at 4:07 AM
I have an Orion 2500D monoblock amp and about 2 months ago when I turned it on it just made the subs pop repeatedly not loud or hard but low and soft. I took it to an orion dealer and they sent it to orion and they said it would cost $400.00 to fix it, so now I'm going to try to fix it myself, I have another amp that I'm going to try and fix first but I've never done it before so I need your help. Where can I get some info on how to fix amps? What tools will I need? What do you guys think could be the problem with this amp? Thanks in advance..
Replies:
Posted By: pcguy760
Date Posted: June 08, 2006 at 4:27 AM
Wow man, I hate to tell you this but fixing an amp is not like changing oil in your car. You have to know how amplifiers work and how electronic components work (Resistors, Transistors, ICs etc.) - this is NOT basic electronics here like hooking up some speakers but this is down to component level electronics involving different stages in the entire circuitry of the amp (BASICALLY - powersupply, pre-amp and output stage). If you have never worked with components or circuitry before and really want to get your amp working I suggest you either pay someone to get it fixed or take some electronics classes if ur serious about this stuff and want to get into it. Good luck.
Posted By: haemphyst
Date Posted: June 08, 2006 at 10:23 AM
Since you don't know what the problem is, and the way you asked the question, leads me to belive you are completely clueless as to the internal functionings of an amplifier. This is a very dangerous place to be. There are high voltges (probably not FATAL voltages, but dangerous anyway) present in the power supply. With a one ohm load, and at Orion's rated power, my math says 50v rail-to-rail. At no load, those voltages will be higher. Like I said, not enough to kill you, but it'll cetainly bite - HARD.
Additionally, pcguy's points are absolutely correct, HOWEVER if you really want to fix it, you need the following (and some other things too
1: an oscilloscope (about 200 dollars, MINIMUM)
2: a signal generator (about 200 dollars)
3: a soldering iron, minimum, however I recommend a proper soldering station (70 dollars to start)
4: a high current power supply 40A minimum (175 dollars to start)
5: a source for all of the components you will eventualy need (priceless... (sorry, couldn't resist))
6: the schematics for the amp (not free, but not expensive, either...)
Now, knowing this information, 400 dollars doesn't seem like a lot of money to spend, now does it? Have Orion fix it, it'll be done right, they'll warranty the job, too. For you own safety's sake, leave this one to somebody that KNOWS what they are doing!
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: dspoppa
Date Posted: June 08, 2006 at 6:34 PM
yeah I guess you guys are right, but instead of sending it to orion in cali. I'm going to find one of there authrized shops around here. thanks anyways.
Posted By: auex
Date Posted: June 08, 2006 at 10:58 PM
Unless it is something easy, like a blown cap inside, then it is unlikely you would be able to repair it yourself. I also believe that Orion is a flat rate repair, usually means they just replace the guts.
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