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D220 phono stage MM input impedance
#1
Has anyone here measured the actual resistance of the Devialet phono input with the configuration set to MM and the resistance at 'High'.

I read somewhere that it measures around 14K ohms on the high setting. I doubt that's correct as most MM cartridges expect to see a load of 47K.

I'm using a Koetsu Black Goldline into a 1:10 SUT into the Devialet phono stage configured for MM on the high setting.

The hiss from the phono is much better using the SUT over a direct input with the loading at 100 ohms.

If the input resistance is only 14K on the high setting my SUT may not be working optimally.


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VortexBox running Roon, Devialet 220 pro. Logitech Transporter. Palmer 2.5 Turntable. Harbeth M30.1
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#2
Anyone?


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VortexBox running Roon, Devialet 220 pro. Logitech Transporter. Palmer 2.5 Turntable. Harbeth M30.1
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#3
Have you asked Devialet support?

And, yes, I agree, 14k is too low for carts designed for 47k.
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#4
(21-Aug-2017, 20:23)disarmamant Wrote: Anyone?


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Hi,

I wanted to check if you got the answer to this question. I am also planning to use a SUT so wanted to make sure I have the right resistor on the SUT to match this.

Thanks,
Sandeep.
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#5
I asked support about the loading of the phono stage and got incredibly vague, evasive answers.
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