Well I'm confused.... I asked this question because somebody on another forum said NBS cables were all about EMI and RFI rejection....I use NBS and like them.... After seeing the responses so far....I found this on the NBS website... "Noise, in a cable, can and will affect the audio frequency range and interfere with an audio signal. The most common noise, Radio Frequency Interference (RFI), affects a cable directly in the audio range. RFI presents itself as hiss, commercial radio broadcasts, intercom broadcasts, or any other radio signal broadcast in the audible range. Another source of noise is Electromagnetic Interference (EMI). Whenever electricity, i.e., an audio signal, passes through a wire, it produces inductance that creates an electromagnetic field. Because EMI manifests itself at a high frequency, it is commonly believed not to interfere with the audible range of frequencies. However, all frequencies demonstrate harmonic structures. Even if the cause of EMI is outside the audible range, the upper and lower harmonics of a given frequency often present themselves within the audible range. At the very least, EMI causes degradation of audio frequencies." http://www.nbscables.com/info/why.html So I guess it still open.... |
Dan I have no problems with NBS. I have recently tried other brands and while having excellant sonic qualities....their "blackness" were not equal to my NBS. Since the NBS were said to have these rejection qualities...I was wondering what cables excell in EMI & RFI rejection. Or maybe I should just ask what cable brands have the blackest background? |
JPS that's good to know....as I have auditioned a few PC's and found them lacking as to silent background. I always knew my cables had a silent quality but never realised how much of a difference it made in the overall sound quality. I find that PC's can have excellant detail...but if it lacks the quiet background it doesn't matter....it makes the whole system sonics degrade. Experience here is about the only way to find out if different cables are compatible or just stick with one brand.... atleast that's what I'm finding out. |
Fvcruz, After reading the Tripoint website... "Come experience the holographic transportation of the real musical event with our proprietary passive filtration that eliminate EMI/RFI from the signal and impulse signal flow. Hear what your electronics, room, and vibration control really sound like." My preamp a accuphase unit is very well made and shielded...also my Vac 140's have a 3 setting ground adjustment that produces a noticeable improvement in transparency and blackness along with a holographic soundstage. Thanks for pointing out the EMI/RFI connection to grounding... I might have to consider a troy someday.... http://www.tripointaudio.us/index.htm I have no interest or ties to the company....just listed the link for copyright issues. |
"The way electricity works is it flows down the path of least resistance. So you need to provide a super-highway for the RF energy to travel on that moves it away from your system. If you do, you'll never hear the RFI. That is one of the main purposes of grounding. RFI has some other characteristics that we can use to whisk it away." Take a bow Dan,take a couple. I have my super highway almost done. I did the preamp,dac, and transport, have the amplifiers to do,all four of them. Should I tie them all together and then wire to the preamp? This has been a real humbling experience. One of my favorite Cd's is "Music from Hollywood" a recording done at the hollywood bowl in 1963. I have listened to this disc a hundred times,tonight....I don't want to turn my system off. Thanks Dan, Roger |
I did my 2 sub blocks and they have never run this quiet. After looking at the vacs closely the only chassis screws are underneath and at 100Lbs a piece there has to be another way. The vacs have a adjustable grounding switch anyway,but I would still be tempted to see if there is a difference. Floating grounds and this treatment? You better ask a opinion of a expert. I am way over my head doing this, I can't beleive it worked and it sounds great today too. Inky black and the speakers are alive. I never thought I had a grounding problem as all my stuff looks to be well shielded. |
