Originally Posted by lilsoccersully
this is the guy that repaired my amp
thank god i found some one local lolz very fast service and its still banging away with no sweat
you deaf yet ?
wanted to respond to your for sale thread, but it says i have to pay money to do so... im not here to sell stuff at this time, so i guess i cant post.
i noticed in your for sale thread, that there was a link to another thread, that referenced a hack repair guy that goes by "808tubenut". i just wanted to post that i have no idea who that is either. certainly not me.
but i do know that there is a whole lot of hacks that claim to repair electronics in this world. i have repaired a whole lot of stuff that certain reputable repair houses "fixed"... yeah, they fixed it alright. there is a huge difference between a quick fix, and a proper fix. and a proper fix does not have to take a long time.
i have tried to hire tons of people, however gave up and decided to just continue on my own.
the problem is, there are technicians that know their stuff, but cant solder worth crap. some believe they can, but i have not seen it yet. one of the worst things i do, is fix other peoples messes. then there are professional assemblers that do awesome board work, but know nothing about electronics. seems i was looking for something that does not exist.
it was my fault for offering $30 an hour to start... all the clowns came out of the woodwork. none qualified.
but, back in the late 1970's, when i was fresh out of high school and before college, i took a assembly job in an electronics factory that made satellite parts. they asked me if i wanted to get NASA trained and certified in soldering, and they will pay for it. sent me off to school.
anyway, i hated that job. 8 hours a day soldering... about 6 hours in, i would get sleepy. left about a year later... but i was NASA soldering certified, so i guess it was worth it. it is much more than just heating something up, and putting solder on it like people believe. lots of people can do a solder joint... but will it last 25 years in extreme temps out in space ?
anyway... on to your amp. ( you can cut and paste this to your ad if you want )
all output FET's were replaced. a few on the clean side were still good, but i replaced them all. i wont take a risk on those few FET's if they had been slightly strained. ( that was exactly the case on an Xtant amp i fixed today... a very well known repair shop that people speak highly of on forums, replaced 1 FET out of the 4 of a channel, and eventually the remaining strained FET's took out all of them, plus the power supply. )
one bank of power supply FET's replaced. while they still worked, they were the ones powering the side that initially blew up. again, why take a risk.
along with the output FET's, the surface mount FET driver chips were replaced. one was bad, but i replaced all 4. lots of the amp companies now days think they are fooling people by sanding the numbers off the chips... but if someone knows how amp circuits are designed...
a few caps were replaced that tested less than optimal, replaced with higher grade ones.
a few caps straightened and resoldered... as you mentioned when you dropped it off, there was a very crooked cap. that caps negative side was barely connected. that is often a problem with 99% of the modern amps out there. the quality control person at the factory was sleeping on that one. all the caps that were not replaced, tested 100%. that amp has very little use... which is often the case with huge amps like that.
everything cleaned up. lots of solder joints re-soldered. i use low residue solder, but cleaned up most of the solder flux left by the factory in the board bath.
2.5 hour burn in... and like i told you, you are the final quality control, as that amp maxed out my biggest power supply on the big test bench. while i could crank it up pretty good, i coulddnt crank it up to right below clipping.
anyway... that amp is better than a new one. im surprised it has not sold for the price you are asking.
i'd buy it... but i cant see me ever needing that much power. they say if it is too loud, you are too old... but that saying was before amps like thus were made.