i want to make an amplifier to support 1800 watts max

shadiedog87 · 31st October 2007, 05:59 AM

i want to make an amplifier to support 1800 watts max
the drivers r 15" 900 watts each i have 2 and would like to bridge them mono or would stereo b better not sure?
they r 8 ohms each but 4 ohms if mono correct?
i want it for lowpass frequencies um not much cash to spend bout $200 wut r som recomindations n schematics plz help
i also want to make a hi n mid pass amplifier also but later but will need lots of help so be prepared to be asked alot of questions
thanx

shadiedog87 · 31st October 2007, 06:34 AM

send me sum link a lil info sumthin plz

Cloth Ears · 31st October 2007, 08:01 AM

Auto/home/PA? PMPO/RMS? Driver Theile/Small?

pinkmouse · 31st October 2007, 08:15 AM

Quote:

Originally posted by shadiedog87
... im not a mean person but if im proveked i go for the throat

Not here you don't. Try it and you'll go straight to the sinbin or be banned completely.

You are asking for help. It is only polite to post in an understandable manner if you want to receive that help, and insulting those who try does not assist your cause.

shadiedog87 · 31st October 2007, 09:36 AM

Quote:

Originally posted by Cloth Ears
Auto/home/PA? PMPO/RMS? Driver Theile/Small?

the drivers are home/pa but a car amplifire will work the same just have to convert dc to ac pretty easy

Donk · 31st October 2007, 10:12 AM

Good luck with that 1.8kW amp project

CJ900RR · 31st October 2007, 10:51 AM

Honestly, you dont really need 1800W just because your speaker is rated 900W.

100W is more than enough for most home-listening, 900W would blow the roof of your house.

Get more easy driven and efficient speakers and you could get away with a pretty cheap solution using a chip-amp or a solid state amp, that sound good.

deiksac · 31st October 2007, 11:00 AM

this is the cheapest reliable amp to consider (from experience), building such a monster at home is not so much fun, you will probably spend a lot of money with no good result
http://www.partsexpress.com/pe/showd...number=245-695

re power - in case this is meant for pa, the 900W speaker should get some 1200W in amp capacity; anyway what kind of speakers do you have? 900W/15" is a little bit stressed, it would have to have 4inch voice coil at least to take such power without stress

jacco vermeulen · 31st October 2007, 11:19 AM

The $200 reference is somewhat amusing though.

Cloth Ears · 1st November 2007, 01:19 AM

Quote:

Originally posted by shadiedog87
the drivers are home/pa but a car amplifire will work the same just have to convert dc to ac pretty easy

dog, I'm askin wot drivers. Wot u using them 4?

31st October 2007, 05:59 AM	#1
shadiedog87 diyAudio Member Join Date: Nov 2003 Location: west palm beach	i want to make an amplifier to support 1800 watts max i want to make an amplifier to support 1800 watts max the drivers r 15" 900 watts each i have 2 and would like to bridge them mono or would stereo b better not sure? they r 8 ohms each but 4 ohms if mono correct? i want it for lowpass frequencies um not much cash to spend bout $200 wut r som recomindations n schematics plz help i also want to make a hi n mid pass amplifier also but later but will need lots of help so be prepared to be asked alot of questions thanx

31st October 2007, 08:01 AM	#3
Cloth Ears diyAudio Member Join Date: Dec 2001 Location: Melbourne, Australia	Auto/home/PA? PMPO/RMS? Driver Theile/Small? __________________ Jont. "It is impossible to build a fool proof system; because fools are so ingenious."

31st October 2007, 11:19 AM	#9
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	The $200 reference is somewhat amusing though. __________________ Looks like Sponge Bob has killed another thread.

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31st October 2007, 06:34 AM	#2
shadiedog87 diyAudio Member Join Date: Nov 2003 Location: west palm beach	send me sum link a lil info sumthin plz

31st October 2007, 10:12 AM	#6
Donk diyAudio Member Join Date: Sep 2007	Good luck with that 1.8kW amp project

31st October 2007, 10:51 AM	#7
CJ900RR diyAudio Member Join Date: Jan 2006	Honestly, you dont really need 1800W just because your speaker is rated 900W. 100W is more than enough for most home-listening, 900W would blow the roof of your house. Get more easy driven and efficient speakers and you could get away with a pretty cheap solution using a chip-amp or a solid state amp, that sound good.

31st October 2007, 11:00 AM	#8
deiksac diyAudio Member Join Date: Jun 2004 Location: Prague	this is the cheapest reliable amp to consider (from experience), building such a monster at home is not so much fun, you will probably spend a lot of money with no good result http://www.partsexpress.com/pe/showd...number=245-695 re power - in case this is meant for pa, the 900W speaker should get some 1200W in amp capacity; anyway what kind of speakers do you have? 900W/15" is a little bit stressed, it would have to have 4inch voice coil at least to take such power without stress

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