vizion said:I have a regular tube amplifier that is hooked up to a balanced power transformer near the wall sockets. I'm just not too sure if the sound coming from the amp is what the designer has envisioned.
He's talking about the use of an isolation transformer.
hmm, I would have thought the theoretical explanations would have been well known. The real question is whether the theory translates into any actual practical or audible advantages.Originally posted by leadbelly That's quite a leap. Got a technical explanation?
agent.5 said:But how will balanced power affect SET tube amps? Will the cathode now see the power supply noise? Will additional choke filters be needed on the negative voltage rail?
Also, will balanced vacuum in tubes be needed?
Ground loops cause undesired feedback modulated by EMI garbage that distorts the sound. Unfortunately the most audiofile armor I saw contain unbalanced inputs and outputs, unlike studio equipment that is balanced, but anyway ground loops cause some troubles for studios as well since most of modern gear has electronically balanced ins/outs to save costs on quality transformers.
agent.5 said:My guess is no. I think an input transformer will be sufficient. My guess is that any noise in the cathode will be reflected to the grid and canceled out. But I am not sure if that is true at all.
You and Wavebourn still have no clue what the original post is discussing. There is no negative rail. Read one of the links in the thread about balanced power conditioners.
agent.5 said:Let say that a normal tube amp has a ground at 0V and B+ at 400V. If you connect this tube amp to a balanced power transformer, you will have B+ at 200V and the ground (of this tube amp) at -200V.