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In the final analysis always try before you buy and if you are happy with something (Whether it actually makes a difference of not) and you can afford it, then go for it, as happiness cannot be measured. A good way to reduce RFI and some EMI is to shield the Cable. Shielded Cables can experience some problems based on the shield's distance from the conductor/s and the insulation used to space the shield from the conductor/s. Properly executed a shielded cable can offer excellent RFI shielding.
BillActually I took 4 tables and smoked a tree so as to make sure I was self opinionated and knew everything and would be guided by some myth blind testing an inconsistent placebo effect, but thanks all the same I know what happiness is, as do all those millions that have walked the cable path. cheers mate. 🙏 Reply TheWhat Hi-Fi?team has more than 100 years experience of reviewing, testing and writing about consumer electronics. We have state-of-the-art testing facilities in London, Reading and Bath, where our team of expert reviewers do all our in-house testing. This gives us complete control over the testing process, ensuring consistency across all the products we test. It is certainly true that the common mode rejection inherent in balanced cables will reduce RFI (Radio Frequency Interference) and to a much lesser extent EMI (Electromagnetic Interference). As Paul mentioned, the performance of the “circuits” used in your equipment can have a significant effect. Studio equipment uses 150 Ohm or 600 Ohm input and output transformers. Many AV manufacturers do not use transformers, probably due to the added cost.. Simple really a child could tell you the difference.A child will also believe anything you tell them.However, on having another look around, it appears that the PS Audio cables are half the price of the Chimera Labs (well in the US anyway). The Silver (Transcendence) PS Audio cables are about the same price as the Chimera Labs'.
On the flip side, If you own a high-end set-up, we'd suggest looking at price-comparable interconnects but you could also audition some cheaper interconnects too. What this means is that unless you are completely sure about the CMR effectiveness of your equipment, you're better off with a shielded version. Further, even if you have something that's as good as ours (and others) shielding the cable removes even more so that when you combine the CMR with the shielding, you get extremely quiet results. Otherwise known as a balanced lead these clever cables minimise noise interference by using two twisted cores. The signals are sent perfectly out of phase with one another and then re-inverted at the destination. The interference collected along the cable length is also then inverted, so put out of phase and made silent. For all those doubters out there stop bleating about a multi million pound industry being a load of old cobblers, if it was then by now those that spend vast amounts of money would have just fitted bell wire because if they don't here an improvement then they would look else where, that's because they can afford to.
The reality is a lot less clear. The common mode rejection rate depends on the receiving and sending piece of equipment. Some products have great common mode rejection (CMR) and others have lousy common mode rejection. For example, PS Audio products have some of the best at about 80dB for our preamplifier. This is unusually high in consumer audio. Typically you might see CMR levels of 30dB, 50dB and so on. Read the full Chord Company Clearway Analogue RCA (2022) review How to choose the right audio cables for you The shielding question is still interesting to me and I hope Dennis will jump in and explain his reasons for not shielding his cables.
I realise this post will not change your mind or belief (Just like a flat earthier will always ignore the truth and keep posting easily debunked claims) but hopefully it will help others to not fall into the same trap and have an open mind so that they realise that just because you believe you hear a difference doesn’t mean there actually is a difference. (Hence the level matched double blind test) I am not familiar with the materials, geometry and construction PS Audio uses in their balanced cables, but they certainly have a reputation for excellent performance at an affordable price. I am still looking for two pair of quality 2m lengths for two sets of monitors if anyone has anything I may be interested in? I have now upgraded the AMP to a MF M3i and run a M-DAC+ and have tried a couple of cables Digital Chord Clearway and Tellurium blue Q digital and the Tellurium is better although cost a fair bit more.Did you do a double blind test on the cables with everything level matched so as to rule out inconsistences and placebo effect, if not then your claims are just opinions and not facts, so your assertion that a child could hear a difference is totally nonsensical.
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