In Reply to: OCOS connectors posted by husky2 on April 22, 2007 at 01:35:29:
The OCOS cable is designed to maintain a characteristic impedance close to the speaker's at all frequencies. If the speaker were a true resistive load at all frequencies, this would minimize reflections. However, real speakers have parasitic inductance and deviate substantially from resistive behavior at radio frequencies. Therefore, the cable impedance no longer matches the speaker at frequencies where standing waves can exist on the cable (in the VHF and UHF bands), and the design goal is defeated. A matching network can cure this problem, but a similar network will help any cable, not just the OCOS.The statement on the OCOS site, that the impedance of the cable rises in the bass and that this mismatch affects audio performance, is simply untrue. It reflects an engineering misconception.
You can make matching networks for a few dollars and get all the practical benefit of the OCOS, and more.
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Follow Ups
- To each his own. However, IMO you are wasting your time. - Al Sekela 10:39:53 04/23/07 (4)
- Re: To each his own. However, IMO you are wasting your time. - rwiley 15:18:20 04/23/07 (2)
- Jon Risch's design uses cross-connected coax for minimum inductance. - Al Sekela 16:00:30 04/23/07 (1)
- Re: Jon Risch's design uses cross-connected coax for minimum inductance. - xero 14:55:13 04/28/07 (0)
- Re: To each his own. However, IMO you are wasting your time. - A.J. 11:40:27 04/23/07 (0)