Amps - How big is big enough??

mike_d87 · 27-06-2005, 08:23 PM

hey all. ive decided to amp my speakers, but not sure how big to go. i have 2x180w 3-way's and 2x200w 2-way component speakers. do i need to get an amp that has a 760w + rating or am i supposed to get an amp with 100-150w rating??

Fro-Daddy · 27-06-2005, 08:43 PM

50rms to each speaker is definately noticable...max youd realistically go (without goin for SQ comps) is about 100rms to each speaker...

pay no attention what so ever to peak power...only rms

goldsp · 27-06-2005, 08:46 PM

when buying an amp only read the rms rating . peak power is a sales pitch .

twilightprotege · 27-06-2005, 08:49 PM

find out their wrms rating then come back to us...

mike_d87 · 27-06-2005, 08:53 PM

thanx guys, i didnt expect a response so quickly. the rms ratings r 40w rms for all speakers, and the 2-ways have tweeters (not sure if that makes a difference)

twilightprotege · 27-06-2005, 09:23 PM

you could get something like the us-audio USA554-220Z (http://www.us-audio.com/car/homeAmp.htm) - 4 x 50w + 1 x 220w to chuck a sub in the mix

chicaboo · 27-06-2005, 09:33 PM

Isn't it also important to look for a good SNR (Signal to Noise Ratio) too? The higher the value (dB) the better there I understand...

Gav.

mike_d87 · 27-06-2005, 10:07 PM

thanx guys! have settled on a clarion apa450: 50Wx4 RMS. local stores have clarion, kenwood, sony etc. so i figured i might as well get more clarion gear (i also get a free hat

). i will also get around to getting the srv303. its a 120W sub with 120W amp in a tiny little box. we put them in suzuki swifts at work as an upgrade. is HEAPS better than it seems and it fits under the carpet!

27-06-2005, 08:23 PM	#1
mike_d87 AstinaGT Regular Join Date: Mar 2005 Location: Newcastle Car: Astina Posts: 481 View Photos By: mike_d87	Amps - How big is big enough?? hey all. ive decided to amp my speakers, but not sure how big to go. i have 2x180w 3-way's and 2x200w 2-way component speakers. do i need to get an amp that has a 760w + rating or am i supposed to get an amp with 100-150w rating??

27-06-2005, 08:46 PM	#3
goldsp AstinaGT Regular Join Date: Jan 2005 Location: Maitland Car: 04 wrx Posts: 456 View Photos By: goldsp	when buying an amp only read the rms rating . peak power is a sales pitch . __________________ GOLD SP- No Longer Stock As A Rock http://www.astinagt.com/forums/vbgar...do=view&id=799

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27-06-2005, 08:43 PM	#2
Fro-Daddy Senior Member Join Date: Jun 2005 Location: Brisbane Posts: 499 View Photos By: Fro-Daddy	50rms to each speaker is definately noticable...max youd realistically go (without goin for SQ comps) is about 100rms to each speaker... pay no attention what so ever to peak power...only rms

27-06-2005, 08:49 PM	#4
twilightprotege Driving a faster car now! Join Date: Oct 2003 Location: Work, always at bloody work... Car: Lotus ....... . Posts: 5,217 View Photos By: twilightprotege	find out their wrms rating then come back to us...

27-06-2005, 08:53 PM	#5
mike_d87 AstinaGT Regular Join Date: Mar 2005 Location: Newcastle Car: Astina Posts: 481 View Photos By: mike_d87	thanx guys, i didnt expect a response so quickly. the rms ratings r 40w rms for all speakers, and the 2-ways have tweeters (not sure if that makes a difference)

27-06-2005, 09:23 PM	#6
twilightprotege Driving a faster car now! Join Date: Oct 2003 Location: Work, always at bloody work... Car: Lotus ....... . Posts: 5,217 View Photos By: twilightprotege	you could get something like the us-audio USA554-220Z (http://www.us-audio.com/car/homeAmp.htm) - 4 x 50w + 1 x 220w to chuck a sub in the mix

27-06-2005, 09:33 PM	#7
chicaboo Senior Member Join Date: Sep 2004 Location: Logan prefecture Car: Touge monster Posts: 7,585	Isn't it also important to look for a good SNR (Signal to Noise Ratio) too? The higher the value (dB) the better there I understand... Gav.

27-06-2005, 10:07 PM	#8
mike_d87 AstinaGT Regular Join Date: Mar 2005 Location: Newcastle Car: Astina Posts: 481 View Photos By: mike_d87	thanx guys! have settled on a clarion apa450: 50Wx4 RMS. local stores have clarion, kenwood, sony etc. so i figured i might as well get more clarion gear (i also get a free hat ). i will also get around to getting the srv303. its a 120W sub with 120W amp in a tiny little box. we put them in suzuki swifts at work as an upgrade. is HEAPS better than it seems and it fits under the carpet!