Dumb Question What Does 0dB Mean? - Blu-ray Forum

zodiak · 07-11-2009, 06:16 AM

Sorry for the dumb question, just set up my pio 03 and as I lower/raise the volume I noticed the 0dB next to the volume (BTW I use it at -30..is that to high am I going to tax my receiver?), is this 0dB something that can be altered or not?...if so should it and to what level?

Thanks again guys

CollinViegas · 07-11-2009, 06:37 AM

0db usually means reference levels on most receivers.

For instance take a THX Ultra2 receiver designed to fill a 2000 and some odd cubic foot room with a peak sound of 104 decibles. If that receiver is used in the environment it was meant to, you would have to put your receiver up to 0db to hear the soundtrack of the movie how the director intended it to be heard.

bluRazor · 07-11-2009, 07:36 AM

it stands for ol' dirty bastard, deceased member of the wu-tang clan.

Topdog · 07-11-2009, 12:43 PM

dBs or Decibels is a term describing the logarithmic ratio of the power relative levels at the input and output of a device. To go into detail would be far too complex for the scope of this forum
A simplified example would be if the input to an amplifier was 1 watt and the output was 2 watts the gain would be stated as 3dB(log ratio 1:2)...or -3dB if the input and output levels above were inverted..
Amplifier manufacturers could have made it easier for mos if the just had numbers from 1 to 1000 and it would still convey the same message..ie louder or softer...

mr.hidef · 07-11-2009, 02:49 PM

Quote:

Originally Posted by blu/razor

it stands for ol' dirty bastard, deceased member of the wu-tang clan.

Hahahahahahahaha!!!!!.......awesome!

Steve · 07-15-2009, 05:15 PM

I'm a few days late on this thread, but there's a good explanation of the OP's question here.

ozzman · 07-15-2009, 06:11 PM

Quote:

Originally Posted by zodiak

Sorry for the dumb question, just set up my pio 03 and as I lower/raise the volume I noticed the 0dB next to the volume (BTW I use it at -30..is that to high am I going to tax my receiver?), is this 0dB something that can be altered or not?...if so should it and to what level?

Thanks again guys

This is not a dumb question ,read through this thread it should help you

https://forum.blu-ray.com/showthread...highlight=loud

07-11-2009, 06:16 AM	#1
zodiak Senior Member Member since:May 2009	Dumb Question What Does 0dB Mean? Sorry for the dumb question, just set up my pio 03 and as I lower/raise the volume I noticed the 0dB next to the volume (BTW I use it at -30..is that to high am I going to tax my receiver?), is this 0dB something that can be altered or not?...if so should it and to what level? Thanks again guys

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07-11-2009, 06:37 AM	#2
CollinViegas Active Member Top ranked HT gallery Member since:Jan 2009 Home Theater Gallery:12 Blu-ray reviews:1	0db usually means reference levels on most receivers. For instance take a THX Ultra2 receiver designed to fill a 2000 and some odd cubic foot room with a peak sound of 104 decibles. If that receiver is used in the environment it was meant to, you would have to put your receiver up to 0db to hear the soundtrack of the movie how the director intended it to be heard.

07-11-2009, 07:36 AM	#3
bluRazor Expert Member Member since:Oct 2008 Location:twin city area Home Theater Gallery:8 Blu-ray collection:569 Trading Score:1	it stands for ol' dirty bastard, deceased member of the wu-tang clan.

07-11-2009, 12:43 PM	#4
Topdog Member Member since:Mar 2008	dBs or Decibels is a term describing the logarithmic ratio of the power relative levels at the input and output of a device. To go into detail would be far too complex for the scope of this forum A simplified example would be if the input to an amplifier was 1 watt and the output was 2 watts the gain would be stated as 3dB(log ratio 1:2)...or -3dB if the input and output levels above were inverted.. Amplifier manufacturers could have made it easier for mos if the just had numbers from 1 to 1000 and it would still convey the same message..ie louder or softer...

07-15-2009, 05:15 PM	#6
Steve Blu-ray Knight Top ranked HT gallery Top contributor Member since:May 2008 Location:Anna, TX 4K collection:128 Blu-ray collection:416 Trading Score:41	I'm a few days late on this thread, but there's a good explanation of the OP's question here.

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