Did anyone come across to DIY a car audio amplifier yourself? I am curious on building an amplifier for myself and at the same time to gain knowledge on the amplifier. Does anyone of you have the schematic diagram? Anyone amplifier will do - monoblock, 4 channel, 2 channel.

http://www.diyaudio.com/
Should ask the right place.....
Here are more on selling....

I think there two shop U can visit Audio Creation & ACP at PJ... At this moment they just mod the amplifer to suite individual taste... maybe U can learn from them... if u sincere to learning & make frends it not harm at all, so good luck...

Hahaha, I did once just for the fun of it, during college, that was 20 yrs ago! You can get diagram and accessories at Pasar Rd. Mine was a 2 channel with LCD SOund display. I attached a equalizer (bought a ready made) to the amp.

Infact I still have it, no more changgih now

how strong ru knowledge wise?

Boleh lah sikit sikit, i'm still a qualified engineer...

Do you still have the schematic diagram? I am interested to make myself one.

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Added on July 25, 2011, 2:30 pmI am a fresh grad in E & E engineering.

This post has been edited by McGill: Jul 25 2011, 02:30 PM

.... Do you know where you need to source the parts?

Electronic parts? Yes.

Where? Jalan Pasar?

I am getting them in Sarawak. I think Jalan Pasar shops do sell too. I have been there once only. A lot of electronic shops over there.

Then you are wrong already.... If you really in to DIY amp, must source the parts from Element14(Farnell) or RS Malaysia, atleast the quality are better than those shops....
It maybe more expensive but you have less headache....

I sourced few types capacitors from Element14 before in bulk because it is cheaper for my few previous projects and that's why I am going to use the leftovers. I never hard of RS Malaysia yet but sometimes I do sourcing from Cytron, Johor. The reason I am getting them in Sarawak because they sell good quality components there at cheaper price.

I don't know how about that shop but, for parts like diodes or capacitors, I still prefer the known brand from element14....
I do bought before from those electronic shops, but then when I test them, I found out that the tolerence % gap are too big between 2 caps....
Buying from element14 I still have gaps, but not as much as 20%....

Thanks for the advice. I didn't know about the tolerance. How did you test it? The capacitors I bought normally can stand the heat up to 110 degree Celsius that's what I prefer. I don't want them to burn out. Element14 normally sells in bulk so you can get them at cheaper price. If you want to buy single or 2 components, I suggest Cytron. Same goes to diodes and resistors.

A cap's spec includes the uf value, tolerence %.
http://my.element14.com/aluminium-electrolytic
Above are some example of the tolerence %....
Usually +-5% are more expensive while +-20% are cheaper....
It depends on what you want... If using it for circuit board, lower tolerence % will be better....

hey TS, a fellow forumer from audiophile section xtorm has excellent tripath kits for sale.
this guy has excellent knowledge for diy car audio as he diyed his own car.

i find his products very nice and cheap and he is a nice guy too!
T-AMP amplifier, high end sound for rm70!? postage included, rm210 complete built up!

This post has been edited by beggarmaster2000: Jul 25 2011, 10:38 PM

Sorrymate, I dont have it anymore, as I said it was very long time ago, and I bet some of the components would have been obsolete

Most of electrical component shops would also be selling kits, or get electronic magazines, or google is your friend!

here is one

http://www.hobby-hour.com/electronics/170w...r-amplifier.php


This post has been edited by VeeJay: Jul 27 2011, 12:19 AM

Thanks. These are very informative.

ts, if u do not know about tolerance, u got a very loooong way to go.. good luck n persevere till the end

Relaxs man, our friend just don't know sometimes... Learning path are great, most of the time....

I am on the learning path boss. You walked the learning path before as well, aren't you?
That's why I need people to guide me. Would you mind to share more information about this topic?

From my noob point of view, getting lower tolerence value will be good, say +-5%, when you buy a batch of capacitors say value of 100uf, it can only be either 95uf or 105uf..... Anything more than that consider off spec.... If you are getting caps with tolerence level of +-20%, it will be 80uf or 120uf.....
Just imagine you use this batch for your amp's output where 1 side 80uf and another 120uf, what will happen?
That's why you can see why certain amp that are super expensive, that's because they need to match a pair(extra manhours)... Or another good example are the performance RAM vs value RAM, every spec are the same but price are totally different....

i using 4 channel 4x75watts amp to push my front ,a 2 channel AB push my sub SVC,should i find another pair of speaker to put at rear,so the 4 channel can be more powerful when 2 pair using by it..???or i just doing to nothing just let the 4 channel push the front?can bridge it?i mean at the front