@skinjob wrote:
axon01 wrote:
I’m curious about what you said about the line out. I’m new here and haven’t found much information about the nature of the line out on the Fuze. For instance, why does the line out need 3 volts?
The 3 volts is not on the line out itself, but is necessary to enable the line out. Ordinarily, the dock would supply the 3 volts on a certain pin. This tells the Fuzz it’s connected to a dock and should enable it’s liniment and disable it’s headphone out.
As to the other comments about SQ through the dock, it will be interesting to see how much difference there is between a simple cable with no extra electronics versus the dock where the signal passes through another circuit board.
Hi Skin and Neutron
It will also be interesting to compare the signals from a line out cable, a high quality dock and the headphone jack.
From what I am beginning to understand, the Fuzz is applying it’s amplification (or attenuation), digitally, through the chip, (thank you Neutron). It makes sense then, that when the dock is deployed, the headphone jack is not, because the signal from the chip is routed to either the jack or the line out.
The fact that you are able to get a signal from either the line out or headphone jack but not both and the position SanDisk placed the headphone jack, (intentionally precluding use while docking), seems to bear out that there are not two amplifiers, as I have read.
The digital concept makes further sense because there is no distortion regardless of the volume level. The interesting thing is that if Neutron’s supposition is correct, that the gain is being applied digitally by the chip, the exact same signal would be available through the jack or the line out. This, btw, agrees with what I heard when comparing the Griffin dock to the headphone jack. The headphone jack, having less to go through, had the cleaner signal.
More digital evidence might be when someone reported that when they used the remote on the sansa dock to change the volume, it did so by changing the volume on the Fuze.
axon