S/N Ratio

[Bill Pallies]

Just wondering what audible difference there is between say an 85 dB S/N
ratio and a 100 dB ratio. A headunit I'm looking at lists an 85 dB S/N ratio
for its CD player. Would this be something to fret over or is it
sufficiently high? The unit in question is a Blaupunkt San Francisco CD72.
Any comments on that would be appreciated as well

[Mark Zarella]

> Just wondering what audible difference there is between say an 85 dB S/N
> ratio and a 100 dB ratio. A headunit I'm looking at lists an 85 dB S/N
ratio
> for its CD player. Would this be something to fret over or is it
> sufficiently high? The unit in question is a Blaupunkt San Francisco CD72.
> Any comments on that would be appreciated as well

What such a large number (85 or 100 dB is very large) indicates is that the
s/n is very good. No, you won't notice the difference in a car. The type
of road you drive on and the speed you're going provides a bigger s/n
contribution.

[Kevin McMurtrie]

In article >,
"Bill Pallies" > wrote:

> Just wondering what audible difference there is between say an 85 dB S/N
> ratio and a 100 dB ratio. A headunit I'm looking at lists an 85 dB S/N ratio
> for its CD player. Would this be something to fret over or is it
> sufficiently high? The unit in question is a Blaupunkt San Francisco CD72.
> Any comments on that would be appreciated as well
>

I'm betting that the HU with the 100 dB rating wasn't tested on a
running car's electrical system.

My Blaupunkt Florida RD 168 is amped to 75W x 4 RMS and it produces no
noticable background noise whether the car is running or not. I
wouldn't worry about it. Compare the S/N ratios for FM reception. The
Blaupunkt Digiceiver shines there.