Technical Terms about these products
1) What information to be provide for a quotation? a) Switching Mode Power Supply
- Output power
- Output voltage
- Output current
- Input country plug
- Output DC connector size
- Detectable power cord required or not
- Polarity
- What's your end-product
- Output power
- Output voltage
- Output current
- Input direct plug-in / power-cord
- Output power
- Output voltage
- Output current
- Input country plug (if necessary)
- Output DC connector size (if necessary)
- What's your end-product
- Output power
- Output voltage
- Output current
- What's your end-product
- Output power
- Output voltage
- Output current
- Input country plug
- Output DC connector size
- Detectable power cord required or not
- Polarity
- What's your end-product
2) Can I use a switching power supply?
Yes, you can. However, beware of a few things:
a) Locate the power supply outside of any enclosure used for your end product. Noise from the switching supply may interfere with it.
b) Most switching supplies require all supplies have at least a 10% load on them before they operate. If you are under that, use a properly rated and sized power resistor to bleed of enough current to kick the switcher on.
3) Why do dedicated power supplies make such a difference?
There are a number of reasons. Firstly Std-Success power supplies are of very high quality. Std-Success pioneered the use of well designed and highly specified power supplies in audio applications 26 years ago and are widely regarded as leaders in what has become well accepted as an important aspect in the design of electrical audio components. Specifically Std-Success power supplies provide an exceptionally low noise and accurately regulated supply which brings great benefits in such highly critical audio applications.
Also a power supply is a relatively noisy component in electrical terms and this noise can cause problems in an audio circuit - especially with the delicate low level signals found in preamplifiers. Hence placing the power supply in a separate box can also bring major benefits. This is also the reason why you should site power supplies and power amps (which also contain a power supply) as far away as practical from preamps, CD players and crossovers.