Any McIntosh C1100 pre-amp owners with dCS DAC? input voltage?

[edward3132]

Originally Posted by SAM992

Yep, that much I know... The digital volume leaves bits behind otherwise, right?

Isn't there a "fixed" volume setting on the dCS too? or is it best to just rotate the knob to 0.0 and leave it be?

The outputs on the Rossini are variable not fixed, therefore setting of 0 would be the same as using a fixed output.

Edward

[SAM992]

Originally Posted by edward3132

The outputs on the Rossini are variable not fixed, therefore setting of 0 would be the same as using a fixed output.

Edward

Ok, only I would think the advantage to setting fixed would be you're less likely to accidentally bump the knob and lose volume, so essentially, the best way is to set to fixed.

[Logan Nolag]

If you read the specs in the C1100 owners manual the maximum input voltage is 20V for balanced and 10V for unbalanced so 6V is probably fine regardless if you are using balanced or unbalanced. Also if you look at the specs for the various McIntosh components with fixed outputs like the D150 or D1100 for example they have a balanced output of 4V and their unbalanced is 2V.

[imprezap2]

I prefer the 6V output of my Rossini, just a bit more dynamic, you can just give it a try, if you hear any distortion you can always use the 2V setting.

[edward3132]

Originally Posted by SAM992

Ok, only I would think the advantage to setting fixed would be you're less likely to accidentally bump the knob and lose volume, so essentially, the best way is to set to fixed.

To clarify my explanation above: there is no setting for fixed output in the Rossini menu.
Simulating a fixed output is the best one can do by setting the volume control to 0db

I always seem to have to verify the 0db setting as the volume is very easy to move when moving around the equipment.

Edward

[SAM992]

Originally Posted by edward3132

To clarify my explanation above: there is no setting for fixed output in the Rossini menu.
Simulating a fixed output is the best one can do by setting the volume control to 0db

I always seem to have to verify the 0db setting as the volume is very easy to move when moving around the equipment.

Edward

Thanks, I don't know where I got it in my head that there is a fixed volume...maybe a flash back from messing around with the settings in Roon recently.. Anyway, yes, volume set to 0.0 and 2v will be my starting point... that should yield the optimal tone based on all my research into this topic.

[SAM992]

Any one know what sort of volume control the c1100 has? What I was able to read said something to the effect of "Digitally controlled, analogue volume control" .. which sounds like neither or is it both? confusing ... is it digital or analog?

[W9TR]

It is a resistive ladder volume control that provides both attenuation and gain depending on the setting, simultaneously providing maximum signal to noise ratio and overload margin. It operated by the units microprocessor, so it is digitally controlled. McIntosh has been using this scheme for over 20 years. It is dead quiet and operates perfectly.

[SAM992]

Originally Posted by W9TR

It is a resistive ladder volume control that provides both attenuation and gain depending on the setting, simultaneously providing maximum signal to noise ratio and overload margin. It operated by the units microprocessor, so it is digitally controlled. McIntosh has been using this scheme for over 20 years. It is dead quiet and operates perfectly.

Thats good to know... Thanks. I didn't think it was pure digital but I recall watching a video where they made a big deal about getting rid of the "traditional" volume knob mechanism in the MC5300 I believe it was first..

73