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*WHITE PAPER* The Sound of Music - How & Why the Speaker Cable Matters
G'DAY
I’ve spent a sizeable amount of the last year putting together this white paper: The Sound of Music and Error in Your Speaker Cables
Yes, I’ve done it for all the naysayers but mainly for all the cable advocates that know how you connect your separates determines the level of accuracy you can part from your system.
I’ve often theorized what is happening but now, here is some proof of what we are indeed hearing in speaker cables caused by the mismatch between the characteristic impedance of the speaker cable and the loudspeaker impedance.
I’ve included the circuit so you can build and test this out for yourselves.
Let the fun begin
Max Townshend
Townshend Audio
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- 146 posts total
When discussing or simulating characteristic impedance and transmission lines:One must be careful not to use the short form formula for ’Radio Frequency Characteristic Impedance’ which is only valid for frequencies near one megahertz and higher.Below 1 MHz down to low audio frequencies you need to use the long form complete formula.The four important parameters (which should be measured at the frequency in question) are: [G] Conductance ( siemens ) (was mho) [R] AC resistance [L] Inductance [C] Capacitance * * * * * * * * * * * * * * at radio frequencies the [L] & [C] values are large so the [R] & [G] values are not important. at audio frequencies the [L] & [C] values are small so they are not important. It’s the [R] & [G] values that are important. |
Townshend is inviting you to a scheduled Zoom meeting. Time: Dec 5, 2020 18:00 GMT Topic: Townshend cable measurements Demo + Q&A. To demonstrate that characteristic impedance matters in the case of speaker cables. Forum questions regarding voltage and oscilloscope timebase settings will be addressed. The session will have the following format: A brief overview of the paper. Introduction of the test set-up. A live repeat of the experiment. An opportunity to discuss the theory and test practices. To facilitate preparedness, should you have any specific questions, please feel free to pre-submit them to us. This is not a requirement. Open section for ad hoc or any further questions concerning cable testing. Join Zoom Meeting https://zoom.us/j/93569703283?pwd=Q3hHOStzU0dENnArY0lGV2F3ZGJFZz09 Meeting ID: 935 6970 3283 Passcode: JYzH2K The session will be recorded. |
- 146 posts total