Hello @RodS,
we have made extended tests here with a roon/PDP3000HV/PA3000HV system and we have found no problems - everything worked as it should.
To better understand your problem I would like to ask the following questions:
1.) Which T+A amplifier or preamplifier model do you use with your PDP3000HV ?
2.) From what I read I assume that you use separate cabling for PCM and DSD between your PDP3000HV and your (pre-)amplifier. Is this correct ?
3.) When you play CD & SACD discs on your PDP3000HV does the switching between PCM and DSD inputs (Input 1 / Input 2) on the amplifier work as it should (i.e. do you get sound output for both disc types) ?
Could you please for a try setup your system for combined DSD+PCM cabling and check if then everything works properly.
Please enter the âSystem Configuration Menuâ of the PDP3000HV and for Output Configuration please choose the setting âPCM+DSDâ.
(You can leave all cables in place for this test - no need to remove the DSD cable between DSD-Out of PDP3000HV and IN2 of the Amp).
Details can be found in the user manual on p.50 and in the appendix/wiring diagrams.
Yes when playing CD or SACD Discs the auto switching works .
Just to clarify what is happeningâŚ
Today I turned on the system and started to play roon and I had sound straight from the off.
The switching in roon auto switches between the DSD & PCM fine.
However sometimes when I switch on system I get no sound from either DSD or PCM( It switches between the 2 formats) even though roon is showing that it is playing.
By turning the Dac off and back on again, (usually once is enough but sometimes it takes a couple of turnings off and back on again) I get sound from both DSD & PCMâŚ
I have now tried what you asked and changed to PCM+DSD from PCM/DSD and have had the same problem.
Sometimes It starts with sound and sometimes I have to switch the dac off and on again to get sound out.
P.S.
I have the PCM to input 3 and the DSD to input 2 as per the manual for PDP 3000HV on page 75 and not as you mention input1/input 2
thank you for your detailed answer.
Could you please tell us what kind of ethernet/USB bridge you are using ?
For our testing we would like to use a setup as close as possible to yours.
Roon nucleus + firmware 1.0(build 174)stable/192.168.0.5 ver 1.6
So upstairs I have in-coming cable broadband router (VIrgin media badged ) netgear vmdg485.
An ethernet cable goes from the vmdg485 to netgear switch gs108 which is approx 5 inches away
The Sonology NAS is also plugged into this gs108 also about 5 inches away
The sonology 713+ NAS is connected to this switch by ethernet cable
.
This same Upstairs gs108 goes via ethernet cable to another netgear gs108 switch downstairs.
The downstairs gs108 goes via ethernet to the nucleus+
The nucleus+ connects via USB to the PDP3000HV
thanks Rod
sonology 713+ is connected to this switch by ethernet
.
gs108 upstairs ethernet cable another gs108 downstairs.
downstairs gs108 connects to nucleus+
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