Interconnect Inductance vs. Capacitance


How do the inductance and capacitance of ICs impact the sound? I have seen some ICs that have low inductance but high capacitance. On the other hand, some ICs have high inductance but low capacitance. One manufacturer even claims that his higher models have higher capacitance.

So can someone explain to me how they impact the sound?
vett93
High capacitance can be a tough load for consumer grade gear - best to stick to short runs or low capacitance IC's. You can lose dynamics and in some extreme cases you get distortion.
Assuming you are referring to analog ic's carrying audio frequencies (as opposed to ic's carrying digital signals or other high frequency signals such as video), inductance is likely to be insignificant.

High capacitance may cause the highs to be rolled off, particularly if the component driving the cable has a high output impedance. That is because the output impedance of the driving component and the capacitance of the cable form a low pass filter, having a bandwidth corresponding to the product of the output impedance and the capacitance.

It is true that some very high-end cables have highish capacitance. That is one example of how some high-end cables are designed to be non-neutral. It is also an example of how cable performance can be system-dependent, because the effects of the capacitance will be dependent on component output impedance.

Regards,
-- Al
Al has given you great advice. Another source of info on this topic is from the Blue Jean Cable website.
I recently changed the preamp, from BAT VK-3iX to the Dude from TRL. I also had to get a new pair of RCA ICs between preamp and amp, as the new preamp is single ended and the previous preamp used balanced connections.

So I got a 10ft pair of Blue Jeans RCA interconnects. They seem to work fine. Another owner of the Dude preamp suggested the top line model from Audio Horizons. Their website indicated that the cable capacitance went higher and higher with their higher end models. This does not give me a warm and fussy feeling to try them.

The Dude preamp has extremely high output impedance, as the volume control is at the output. The volume attenuator has a max resistance around 100K! So I am reluctant to use ICs with higher capacitance for the reasons Al stated.

Thoughts are welcome.

PS. The Dude preamp sounds very very good even with the high output impedance.
One could share to others how to measure inductance, capacitance, and resistance if they have a Digital Volt Meter.
And explain the differences when apply to power cords or speaker cables.