Pat Farrell;223369 Wrote:
> Robin Bowes wrote:
> > Actually, SNR is the power ratio of the signal to the noise, i.e.
>
> Actually, it is either power or amplitude, you just have to change the
>
> multiplier from 20 to 10
*Actually* it's the power ratio or the square of the RMS amplitude,
i.e.
Robin Bowes wrote:
> Actually, SNR is the power ratio of the signal to the noise, i.e.
Actually, it is either power or amplitude, you just have to change the
multiplier from 20 to 10
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Pat Farrell wrote:
> Technically:
> Say you have a signal with 100dB of signal and 30dB of noise.
> SNR is 20 log10(S/n)
> where S is signal and n is noise, in volts, or volume.
> SNR == 20 log10( 100/30)
> == 20 log10 (3.33)
> == 20 * 0.5228
> == 10.45
>
> Crank the sound down
Pat Farrell;223026 Wrote:
> ...When you turn down the volume, with anything, you reduce signal and
> since noise is constant, you have reduced the signal to noise ratio...
As I understand it, one advantage of using external analog attenuators
(like the Endler attenuators) is that they attenuate
USAudio wrote:
> Pat Farrell;223026 Wrote:
>> It is true that if you cut the volume to 25% (down 12 dB) you take a 16
>> bit signal and now have only 14 bits that are meaningful. But the same
>> impact happens in analog.
> Thanks Pat, that is what I was clumsily trying to convey but wasn't
> aware
Pat Farrell;223026 Wrote:
> I think you are misquoting him. Or perhaps misinterpreting what Sean
> wrote.
I think it was probably a little of both! =)
I was thinking of this post by Sean which I believe confirms what you
said:
http://forums.slimdevices.com/showpost.php?p=164681&postcount=3
Pat F
USAudio wrote:
> Sean Adams (founder of Slim Devices and designer of the SqueezeBox)
> highly recommends you have a analog volume control between the
> SqueezeBox and the amplifier, for various reasons.
I think you are misquoting him. Or perhaps misinterpreting what Sean wrote.
The concern is to
lextek;223003 Wrote:
> I order a Cambridge Audio 540 A v2 Integrated today. Found a
> refurbished one at a good price. Should be a nice upgrade.
You made the right decision;
Sean Adams (founder of Slim Devices and designer of the SqueezeBox)
highly recommends you have a analog volume control be
If you only have one input (the SB3), you can use a power amp. If you
may use the amp in a larger system someday, get an integrated.
--
Pale Blue Ego
Pale Blue Ego's Profile: http://forums.slimdevices.com/member.php?useri
I'm hooked on the Squeezebox! I have it set-up in a modest rig now.
Pardigm Atom speakers, a heavily modified T-Amp and Kimber CQ/8TC.
This is in a small spare bedroom. I am going to be getting a different
amp. Would it make sense to get a power amp and use the SB3 as a
preamp? Or go the int
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