RAKK DAC Passive output Volume

K&K Audio / Lundahl Transformers

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OK, so thanks to Kevin I'm going to be utilising a RAKK DAC passive output module, complete with volume control. I have a good quality switch so I'm thinking I'll use a switched resistor arrangement for the volume control but can I just check my understanding of the arrangement. Sorry if this is basic stuff to some of you but I'm a painter by numbers, not an artist.

The volume control resistor is in parallel with the existing I/V load resistor (C1 and 2 on the Passive output PCB) so varies the output voltage by varying the overall value of the I/V load, the lower the resistance the lower the output. As such I don't require the normal shunt attenuator arrangement, just to switch through a range of resistor values? The passive output module notes refer to using a 10K potentiometer so how does a range of resistors from 50R to 10K sound? Should the increments be linear or logarithmic? Do I have that about right?

Thanks

Ray

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Parts Connexion

Topic - RAKK DAC Passive output Volume - UK Ray 10:48:07 10/02/13 (4)

RE: RAKK DAC Passive output Volume - KevinC 12:06:49 10/03/13 (3)

RE: RAKK DAC Passive output Volume - UK Ray 13:21:30 10/03/13 (2)

RE: RAKK DAC Passive output Volume - KevinC 13:37:04 10/03/13 (1)

RE: RAKK DAC Passive output Volume - UK Ray 23:30:29 10/03/13 (0)

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