So you need to step up the voltage by a factor of 10 (from .3mV to 3mV). You can select a SUT with that information. The reflected impedance is related to the square of the turns ratio. With a 10:1 transformer, the impedance seen by the cartridge will be equal to 47K divided by 100, or 470 ohms. Some might say this is a little high for the Dynavector. For best results, you would replace the 47K load resistors with 10K load resistors, so the Dyna would see 100 ohms (10,000 divided by 100). Or,if you don't want to remove the 47Ks, you can calculate the value of the parallel resistance needed to reduce the net resistance to 10K, if you want the Dyna to see 100 ohms. I get 12.7K ohms as the value of that resistance.
Dynavector XV1-S and step-up
Is there a step up that works particularly well with the Dynavector XV1-S cartridge. The arm is a Graham Phantom and the pre-amp is a Shindo Masetto. I have no complaints going straight in to the Masettos MC input, but thought there might be a suitable step up to try out.
Cheers and thanks
Cheers and thanks
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- 47 posts total
- 47 posts total