Sweeter
The JOB-Sweeter AC line curing Technologies.
The Goldmund AC-Curator and JOB Sweeter unit use a technology we developed quite some time ago to provide low-noise AC line for the sensitive low level Audio products like CD and DVD transports (exceptionally important for Audio quality), D/A and A/D converters and preamplifiers (especially Phono and Microphone preamps, of course).
The main ideas are simple : decouple each unit from the AC line and filter it.
To achieve the decoupling we use isolation transformers. Well known technology that we just pushed one step further by having one separate transformer for each output. Expensive but far more efficient, because one of the most important quality factor being found by our engineers is the total separation between the connected units. In our technology, each Audio (or Video) component is isolated from the AC line noise by one transformer but also isolated from the other components connected by two separate transformers. Much, much better.
After each transformer, the AC line is then filtered before being sent to the connected component. We could use only a parallel capacitive filtering or serial coil filtering, but the capacitive parallel filtering allows a better current linearity so it is preferable for preamps.
More, the filtering being made after the decoupling transformer, the action is strongly reinforced by the coil of the transformer. With a proper calculation, and one separate filter for each output, the efficiency of separation between components is even reinforced, making it absolutely unique in the industry.
The sonic effect of our technology is so impressive that the first unit - the Goldmund AC-Curator - is now considered as the best sounding device of this type in the Audio industry. It is noticed as a cleaning, sweetening effect with (and this is where we are far more efficient than competition) an even increased dynamic range.
Due to the high speed signal cancellation, the technology may not be applied as it is for very fast power amps (like the JOB circuit), because it would slow down the transient capability of the power amps connected. However, the simple parallel filtering used may be applied without the decoupling transformer. This is what we do inside the big Goldmund power amps like the Millennium.
We also just learned that Goldmund will use the JOB Sweeter technology inside the power supply of its new Eidos line of DVD/CD transports, making the unit much better especially for CD reproduction.
