How do I select an amplifier?

msharpe · 3rd February 2006, 06:44 AM

I think I've finally settled on the speakers I want to use in my project. 2X Dayton Classis 15in. Subs - 100W RMS 150 W max 8ohms. 4X Goldwood 5in. Mids 40W RMS 55Wmax 8ohms. 4X Dayton 3/4in dome tweeters 15W RMS 30W max 6ohms. So firstly, I don't really know what I'm doing. The first quetion I have would be how do I choose what power rating I need for the amps. Does it matter that the tweeters are 6 ohms rather than 8? I still have to figure out how big to make the boxes too, so I guess I'll have a few more questions later

lineup · 3rd February 2006, 07:39 AM

Will you put all those into same box?

Will it be 2 loudspeakers + subwoofer system?

How many amplifiers you need?

msharpe · 3rd February 2006, 01:29 PM

I planned to but the speakers in two boxes, with one sub two mids and two tweeters per box.

Limhes · 3rd February 2006, 02:25 PM

I also often wonder about how power ratings should be kept between amplifier and speakers. A friend once told me an amplifier should at least be capable of handling all back-EMF from the speakers, which can get quite large.

So, amplifier power at least how many times larger than maximum total speaker power ratings?

ilimzn · 3rd February 2006, 04:33 PM

Quote:

Originally posted by msharpe
...two tweeters per box.

Hehe I guess you really don't know what you are doing - how do you intend to integrate the two tweeters in one box?

msharpe · 3rd February 2006, 08:30 PM

Well in that case, I guess it's going to be one tweeter per box then

myhrrhleine · 4th February 2006, 04:16 AM

How far will you sit from the speakers?
How big is the room?
How loud will you play them?
What type of music?
What is the loudspeaker's rated SPL/W/M?

adason · 4th February 2006, 12:26 PM

Quote:

How do I select an amplifier?

you borrow as many amplifiers as you can, you hook them up, you listen, you compare, you listen again, compare again, and again, till you end up with the amp you like best in your system
good luck!

3rd February 2006, 06:44 AM	#1
msharpe diyAudio Member Join Date: Jan 2006 Location: Pickerington, OH	How do I select an amplifier? I think I've finally settled on the speakers I want to use in my project. 2X Dayton Classis 15in. Subs - 100W RMS 150 W max 8ohms. 4X Goldwood 5in. Mids 40W RMS 55Wmax 8ohms. 4X Dayton 3/4in dome tweeters 15W RMS 30W max 6ohms. So firstly, I don't really know what I'm doing. The first quetion I have would be how do I choose what power rating I need for the amps. Does it matter that the tweeters are 6 ohms rather than 8? I still have to figure out how big to make the boxes too, so I guess I'll have a few more questions later

3rd February 2006, 07:39 AM	#2
lineup diyAudio Member Join Date: Dec 2005 Location: the north	Will you put all those into same box? Will it be 2 loudspeakers + subwoofer system? How many amplifiers you need? __________________ lineup

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to select MOSFET's	gearheadgene	Class D	79	4th October 2006 04:48 PM
Help a first timer to select...	CJ900RR	Tubes / Valves	12	31st January 2006 04:46 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

3rd February 2006, 01:29 PM	#3
msharpe diyAudio Member Join Date: Jan 2006 Location: Pickerington, OH	I planned to but the speakers in two boxes, with one sub two mids and two tweeters per box.

3rd February 2006, 02:25 PM	#4
Limhes diyAudio Member Join Date: Apr 2005 Location: Nijmegen!	I also often wonder about how power ratings should be kept between amplifier and speakers. A friend once told me an amplifier should at least be capable of handling all back-EMF from the speakers, which can get quite large. So, amplifier power at least how many times larger than maximum total speaker power ratings?

3rd February 2006, 08:30 PM	#6
msharpe diyAudio Member Join Date: Jan 2006 Location: Pickerington, OH	Well in that case, I guess it's going to be one tweeter per box then

4th February 2006, 04:16 AM	#7
myhrrhleine diyAudio Member Join Date: Jan 2006 Location: Avalon Island	How far will you sit from the speakers? How big is the room? How loud will you play them? What type of music? What is the loudspeaker's rated SPL/W/M?