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 Post subject: Speaker Sizing
PostPosted: 26 Oct 2009, 15:18 
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Joined: 26 Oct 2009, 15:14
Posts: 4
I am in the process of building an amplifier to test my skills from here: http://www.r-type.org/static/ecl86.htm
Image

How does one size speakers in terms of wattage? I would use a 6incher as a woofer (intend to use this as a Bookshelf type) and tweeter

this would be a 2-way? I can put a suitable crossover inside the speaker box.

thanks


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 Post subject: Re: Speaker Sizing
PostPosted: 29 Oct 2009, 12:50 
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Joined: 28 May 2008, 21:53
Posts: 4580
Location: Winnipeg, CANADA
Yes, what you have described would be a two-way speaker.

Select the power handling (measured in Watts) to be larger than the amount of power you will send to the speaker.

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 Post subject: Re: Speaker Sizing
PostPosted: 29 Oct 2009, 13:40 
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Joined: 26 Oct 2009, 15:14
Posts: 4
Hi
Thanks for this.. so if I were to use this circuit

Image

Then would I be heading in the right direction.
ok. so let's say that the ECEL86 outputs 7W (single ended) then I would buy a 6" woofer of say 10W? or is 15W better.. Sorry for the elementary stuff.

One last Q: Further would I need the LPAD/RPAD as described here?
http://www.bcae1.com/lpad.htm

Cheers
AL


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 Post subject: Re: Speaker Sizing
PostPosted: 29 Oct 2009, 20:38 
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Joined: 28 May 2008, 21:53
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Location: Winnipeg, CANADA
Hi Al,
A 10W speaker should be fine with a 7W amp. 15W is only better in the sense that it can take more power. The power handelling will not give any indication on which speaker sounds / preforms better.

The L-Pad you can use with the tweeter if you want to be able to adjust the output level of the tweeter.
Cheers

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 Post subject: Re: Speaker Sizing
PostPosted: 29 Oct 2009, 23:43 
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Joined: 26 Oct 2009, 15:14
Posts: 4
Hi Gio

thanks for the input. Much appreciated.

Cheers

AL


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