Why use ground wire from preamp to amp???
"Tannoy’s unique fifth speaker terminal electrically grounds the driver chassis, reducing potential sound degradation form radio frequency interference. Eliminating potential RF ‘noise’ enhances midrange clarity and allows Definition to deliver an even more expressive musical presentation." >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Are you using that? Where did you connect it to? |
Since most components have grounded ac power cords and most interconnects have grounds, every component has two earth ground and thus ground loops. The third wire would add additional ground loops. All of this is to satisfy Underwriters Labs on the off chance that you have a loose power wire within the component and are grounded when you touch the component. All of this ruins your sound. There are three alternatives. One is buying only plastic bodied component with the exception of your preamp. Two is using cheaters on all but the preamp power cord. In Canada cheater are illegal. You could also cut off the ground on the power cords other than that for the preamp. Third is having very low impedance grounds to one point that has a low impedance to earth or buy the Tripoint Troy Signature with filters on each binding post and a excellent ground. This is great but very expensive. |
Norm, what about the Audience adeptResponse power conditioners with ground bars doing a similar job that the Tripoint Troy Signature do? Cheater plugs have the inherent danger if something in the unlikely event mishaps in the device to the metal housing, the user touching the surface will act like a grounding wire which may be a shocking experience if he/she lives to tell. |
Not sure "most" of audio and or video equipment designed and manufactured today use the wall receptacle safety equipment ground on all their equipment. Just to name a few that do not use the safety equipment ground on all their audio equipment. Ayre Arcam Cambridge Audio Marantz Denon Nad Sony I am sure there are others. It has nothing to do with whether the outer case is metal or plastic. It has to do with the insulation used on the AC internal power wiring. Equipment that is designed and Listed for only 2 wire power cords that does not use/need the third wire safety equipment ground uses double insulated AC power wiring. It does cost more than regular insulated wire. In time, jmho, all audio equipment as well as video equipment designed and manufactured for the home consumer use will use 2 wire power cords. There is no need for the safety equipment ground wire today and it can/does degrade the sound of audio as well as video equipment. Manufactures just need to spend the extra money and use double insulated AC power wiring in their equipment. |
