davep;141561 Wrote: > I have just taken delivery of my Transporter and have been experimenting > with setups as a replacement for my SB3. I realise that I have to make > some decisions about how I will be controlling volume but admit to > being a bit confused. > > When the SB3 was in my system I took its fixed level digital output to > my DAC and thence to a pre-amp and on to the power amps. Volume was > controlled at the pre-amp and I even did the analog mute thing on the > SB3 via the -63dB setting in SS. > > With the Transporter I have removed the DAC, since the internal DAC of > the Transporter is considered to be one its key features which sets it > apart from the SB3+DAC arrangement. I have also now taken out my > pre-amp and am running analog out from the Transporter directly to the > power amps. This works fine but for normal listening level the > Transporter volume needs to be set at between -25dB and -35 dB > depending on the source and the time of day (or night). > > My concern is whether this is in any way compromising my ultimate sound > quality. I have seen various threads here in previous months relating > to the impact - or otherwise - of volume controls in the digital and/or > analog domains but do not claim to have a clear view of the consensus, > assuming there is one! > > I have thought about moving the internal attenuation jumpers in the > Transporter in order to allow the volume control to be set closer to > its top end - and would have tried that already if I had been able to > find a 1/16" hex key. I am not sure however if there is any > potential for downside resulting from adding this attenuation or indeed > if it is any different from using the volume control itself. I assume > that the jumpers add attenuation in the analog domain whereas the > volume control might be doing so digitally (?). > > I could also put the pre-amp back in circuit, crank the Transporter > volume up to max and do everything from the pre again. > > So, a somewhat confused Transporter owner keen to get the very best out > of his investment and looking for some insight from those with a better > grasp on all this than I. > > davep
as far as I know, the only reason you would want to adjust the attenuation is if the maximum transporter volume would damage your amplifier or speakers. I think the attenuation setting is simply to adjust the resistance value of the output.. nothing fancy, just changing the value. also I remember seeing that the transporter does the digital volume control in 24 bits, so it shouldn't be an issue quality-wise.. -- SuperQ ------------------------------------------------------------------------ SuperQ's Profile: http://forums.slimdevices.com/member.php?userid=2139 View this thread: http://forums.slimdevices.com/showthread.php?t=28133 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
