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Switching between TTs

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    Posted: 15 Jun 2018 at 7:39pm
I have just ordered a switch (Example 248) from Konrad at Dodocus Design. It'll look good beside my Majestic, because the faceplates are exactly the same size.

This switch will, in theory, allow me to connect three turntables to my Reflex M and switch between them.  How should I connect the earth cables of the two Technics TTs; to the Dodocus or to the Reflex? The third TT has a Rega arm and so no earth cable.


Edited by ICL1P - 08 Jul 2018 at 6:10pm
Ifor
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Reflex M & ACCESSION M, CuSat50, Majestic DAC, a Proprius pair.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Drewan77 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jun 2018 at 9:40pm
I wanted to do something like this with two turntables into an Accession M but I was told that there would be capacitance issues between turntable & phono stage. How does this box avoid that?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ICL1P Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jun 2018 at 10:27pm
Originally posted by Drewan77 Drewan77 wrote:

I wanted to do something like this with two turntables into an Accession M but I was told that there would be capacitance issues between turntable & phono stage. How does this box avoid that?
Pass!

I asked Graham some while back about building me something to do the job. He said it would be expensive. I think the Dodocus is significantly more expensive than Graham's estimate. I hope it works!

Example 248 is the one I've ordered. http://dodocus.de/individuelle-umschalter.html
Ifor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote morris_minor Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jun 2018 at 10:02am
The Dodocus box will certainly be built well. I use a UBox6C for putting two phono amps (AccMM and AccMC) into the analogue input of the Majestic. Silky smooth switching with no audible effect on the signal.

I'll be interested to see how you get on Ifor!
Bob

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2018 at 9:51pm
Sorry if I'm stating the obvious with these answers:

I'd try earthing cables to the switching box with each deck on its own and listen to hear if the hum is higher than connecting the earth cable to the Reflex phono stage ground terminal instead. Assuming the cartridges are MM the extra length of cable will bring 60-100pF if it's a Cusat50 and probably won't make much difference to the sound of your music.



Edited by Fatmangolf - 18 Jun 2018 at 9:51pm
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ICL1P Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2018 at 10:35pm
I'll let you know how I get on when it arrives.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ICL1P Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jul 2018 at 10:29am
My Dodocus "UBox same as Sample 248, silver" arrived yesterday.




Ifor
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