Impedance != capacitance.
How important is the cable between the SUT and phono pre?
I know when using a cable between a MM cartridge and the phono pre it's very important to take into account the capacitance of the cable for cartridge loading.
I don't recall seeing a discussion on the importance of using low capacitance cables between a SUT and phono pre.
I picked up a Denon Au-340 to replace my Denon AU-320 in my system and the AU-320 has built in cables that run to the phono pre, hence my question.
Is there a way to figure out the capacitance requirement for this cable or is it not that important? Will a good shielded cable work fine?
I don't want suggestions on some high dollar cables, that will never happen. I have about 15 or 20 pairs of cables that I picked up over the years, I can always go through the pile and measure the capacitance if necessary.
Thanks
BillWojo
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- 33 posts total
MC step-up transformers explained
"The capacitance of the cable connecting an mc step-up transformer to the following phonostage also plays a part, which is why the interconnecting cable should be a low capacitance design and kept as short as is practical."
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Hi @imhififan, he's basically explaining a zobel like I mention above, and some generic advice that may or may not fit a circumstance. However, transformers do not reflect secondary load C to the primary. | ||
They absolutely do reflect any capacitance seen on the secondary by the turns ratio squared. Say you have 150pf (50p cable + 100p input) at the secondary of a 1:20 SUT. This will appear as 150*20*20 or 60,000pF or 60nF or 0.06µF to the source.
dave | ||
- 33 posts total