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Steve G · June 13th, 2010, 07:45 AM

Check it out-

http://www.ringbell.co.uk/info/dbw.h...elw=&realw=100

Read lots of threads about this here so thought some folks might find this useful.

BiggerJohn · June 13th, 2010, 09:43 PM

Man I usually calculate that in my head.

That's actually a dBW calculator. dB's relative to a 1 Watt reference level. Just like dBm is dB's relatave to a 1 milliwatt reference. Do it in your head. Doubling or halving is a 3 dB change. 10x is a 10 db change.

With the one watt reference, 2 Watts would be 3 dB, 4 Watts would be 6 dB, 8 Watts would be 9 dB. 10 Watts would be 10 dB and therefore 5 Watts would be 7 dB. No calculator required.

Steve G · June 14th, 2010, 06:19 AM

Cheers BiggerJohn. Ill get the hang of this stuff one day!

June 13th, 2010, 07:45 AM	#1 (permalink)
Steve G Friend of Leo's Join Date: Nov 2005 Location: LeeK (England) Age: 36 Posts: 3,790 64 Photos	Online db and watts calculator. Check it out- http://www.ringbell.co.uk/info/dbw.h...elw=&realw=100 Read lots of threads about this here so thought some folks might find this useful. __________________ "He was a drinkin' man with a guitar problem..." http://www.facebook.com/bluesr

June 13th, 2010, 09:43 PM	#2 (permalink)
BiggerJohn Friend of Leo's Join Date: Jun 2009 Location: California Posts: 3,024	Man I usually calculate that in my head. That's actually a dBW calculator. dB's relative to a 1 Watt reference level. Just like dBm is dB's relatave to a 1 milliwatt reference. Do it in your head. Doubling or halving is a 3 dB change. 10x is a 10 db change. With the one watt reference, 2 Watts would be 3 dB, 4 Watts would be 6 dB, 8 Watts would be 9 dB. 10 Watts would be 10 dB and therefore 5 Watts would be 7 dB. No calculator required. Last edited by BiggerJohn; June 13th, 2010 at 09:49 PM. Reason: more info

June 14th, 2010, 06:19 AM	#3 (permalink)
Steve G Friend of Leo's Join Date: Nov 2005 Location: LeeK (England) Age: 36 Posts: 3,790 64 Photos	Cheers BiggerJohn. Ill get the hang of this stuff one day! __________________ "He was a drinkin' man with a guitar problem..." http://www.facebook.com/bluesr

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