A DC cable connects an external linear or plug-in power supply to the device it powers – such as a streamer, network switch or DAC.
Why a good DC cable?
If you power small digital devices with a high-quality linear power supply, you want that clean DC voltage to reach the device with as little loss and interference as possible. That's exactly the job of the DC cable: solid conductors, good shielding and a firmly seated, correctly sized barrel connector. That way the calm voltage of the power supply arrives where it's supposed to work – without new trouble from a wobbly or mismatched plug.
What matters
Absolutely critical are the correct plug size and the right polarity – there's no room for guesswork here, a wrongly poled or wrongly sized cable can damage devices. In addition there's sufficient cross-section and good shielding. At HD Zürisee in Wädenswil we check the voltage, polarity and plug dimensions of your power supply and device before anything is plugged together. Safety clearly comes first here.
Who it's for – and straight talk
For anyone wanting to upgrade streamers, network switches, DACs or similar small devices with an external linear power supply and to set up the connection cleanly.
Straight talk: a DC cable doesn't work magic – it brings the quality of your power supply to the device with as little loss as possible. The real upgrade step is the good power supply; the cable ensures a clean, safe connection. We pay particular attention to polarity, voltage and plug size matching exactly, so nothing gets damaged.
Verdict: correct polarity, matching plug size, sufficient cross-section – then the DC cable delivers safely and cleanly. Tell us your power supply and device, and we'll check the data and choose the right connection.
Frequently asked questions
What do I need a DC cable for?
To connect an external linear or plug-in power supply to the device it powers – typically streamers, network switches or DACs that you run with a better power supply. The DC cable transfers the DC voltage with low loss and free of interference.
What do I need to watch out for with the plug and polarity?
Plug size, voltage and polarity must match the device exactly – there's no room to play here. A wrongly poled or wrongly sized cable can cause damage. That's why we check this data together before anything is connected.
Does a better DC cable actually help?
It brings the clean voltage of your power supply to the device with as little loss and interference as possible. The actual gain comes from the good power supply; the cable secures the connection. We assess the effect honestly instead of promising miracles.
Does the DC cable fit any linear power supply?
Not automatically – plug type, polarity and voltage must match the power supply and the device. Tell us both components, and we'll check compatibility and choose the right cable or the correct adapter.
Can I use it to replace my streamer's wall-wart power supply?
The power supply itself isn't replaced by the DC cable – it connects a suitable linear power supply to the device. What matters is that the new power supply delivers the right voltage and current. We check whether the combination is a safe match.
Why buy DC cables at HD Zürisee?
Because we carefully check voltage, polarity and plug size before anything is connected – keeping your device safe. We think of power supply, cable and device as a unit. We advise you personally and deliver throughout Switzerland – free shipping from CHF 190.
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