Another amp

[darkm4n]

I think you can push it to 2 ohm ..
But i'am not shure ... i have another problem with some distorsions.

[Cheese]

Hi
Im thinking of building a M250 for my final project, and im still actually wondering what to build. So i had few questions and maybe some one could answer them for me.
Im thinking of woulding this M250 amplifier, ar perhaps a car amplifier. But i cant find any good designes for a car amlifier.

So i see that this is 250W amp, and i was wondering what kind of difference is this amp to like 1000W car amp. I still think more power is better, even tho im not really sure why i think that.

Thanks

http://www.astro.uu.se/~marcus/private/m250.html

[Drafance007]

1. What 1000w car amp are you tihnking exactly ??? Can you write any model ????
2. Can you imagine what power can give two M250 ams bridged ?
3. can you build power supply for this kind of amp...??? this one is hard...???

[Cheese]

Ok Well im thinking of any car amp like Phonix gold, or just any kind dosent matter. Its just that they have such high power rating, compare to somethign like m250, which seen much bigger then a car amp. Why is that??

[Cheese]

Also is m250 good for running a subwoofers, of just speakers?

[li_gangyi]

what he's meaning is that you are gonna need an SMPSU for the amp's power supply..which is gonna be hard...

[Cheese]

Another thing, i keep looking at this pictures here but i cant find the outputs to the m250. I see the back of the amp and the two rca look like the inputs to the amp. So where are the outputs???

[Drafance007]

Anything about m250 amp you can ask author himself....he had answered all my questions.
One thing about it...I made some experiments soon and it did run very smooth...on 2 ohm load (1,66~1,8). Since i didn't have much of a PS unit...i could only get ~300W rms, less than 1% thd. I belive it can give much more. Only one module. In bridge mode you could make more than 1000w. Maybe someone has tryed that.
But...for me...PSU for this is too much to build...too expensive maybe....
I don't belive this project will pay off... Go on and buy some car amp...

[Cheese]

Well im not thinking of using this for a car amp, just for my home theather. I think it will be worth it. But looking at the schemathic, i only see one output and one input, so what happens if i wont more then one output. Would i have to make 2 circuit bord?????

[li_gangyi]

Thats's correct...most of the time..an amp's schematic only shows one side or one channel...so if you want stereo...you will have to build 2 of them...