Simple Question regarding my Marantz SR4600.
Currently I am using a Roku M1000 (not the M1001 which resamples everything to 48 kHz) as my digital front end and have it connected via Coax S/PDIF to the Marantz SR4600.
Content is Apple Lossless Files streamed from a Windows XP laptop via WiFi.
Associated equipment is as follows:
PS Audio Duet/Noise Harvester/Power Punch Cable
Energy RC-10 speakers
Canare 4S11 Speaker Cable
Apogee Wyde Eye Coax Cable
Although I am generally very happy with the sound quality of the current setup I suspect my weak link at the moment MAY BE the DAC in the Marantz Receiver (although it does have HDCD decoding which is quite nice for my large collection of Beach Boys discs).
As a result, I am interested in the possibility of adding an external DAC between the Roku and the Marantz.
I notice that the Marantz has a "Pure Direct" mode (which I currently run with the Roku).
My questions is as follows:
Would an analog input bypass ALL of the A/D and subsequent D/A conversions in the AVR if the Marantz is in Pure Direct Mode ?
In other words, in this setting does the Marantz act as essentially an analog integrated amp/receiver that has a tone control defeat ?
This point is VERY IMPORTANT to me as it would make absolutely no sense to add an external DAC if the Marantz is going to do an internal A/D conversion anyway.
My suspicion is that the Marantz SR4600 in PURE DIRECT mode DOES bypass all of the DSP processes (A/D then back D/A) but I sure would like to get some additional confirmation from multiple sources BEFORE I think about adding an external DAC.
Thanks for any input to my question.