TeddyNUC - Power Supply for Intel NUC (Roon Rock, Roon Nucleus, Asrock Beebox etc)


Availability: In stock



  • Power output: 19V, up to 3.5A

  • Mains Supply: 110-120V or 220-240V

  • Dimensions: 24x16x6 cm

  • Cable included: Silver-plated copper with 5.5mm outer, 2.5mm inner barrel diameter connector

TeddyNUC - Power Supply for Intel NUC (Roon Rock, Roon Nucleus, Asrock Beebox etc)

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 The TeddyNUC is an ultra low noise power supply that can be used to replace the switching power adaptor that comes with media-PCs such as Intel NUC, Roon Nucleus, Asrock Beebox etc. The TeddyNUC provides significant improvement in sound quality, resulting from a reduced noise-floor.

The design is based on the experience gained with the TeddyCap family of power supplies for Naim Audio equipment, and uses the same technology.


In general, you’ll experience more clarity, tighter bass, more detail, better dynamics, natural voices, better soundstage etc.


The power supply which is provided with media-PCs is based on a technology called Switch Mode. Using this technology it is possible to create small, efficient, and low cost power supplies. Unfortunately due to their method of operation (high frequency capacitor charging), these power supplies are also very noisy, causing degradation in sound quality. As an alternative, several after market power supplies exist which are usually based on Linear Regulators. These regulators provides an improvement over the original power supply but as can be seen on the graph below are still limited in their performance.

The TeddyNUC power supply is based on the zero-feedback, ultra low noise voltage-regulator called SuperTeddyReg and provides a significant improvement over conventional feedback-based linear regulators.

The following graph shows the noise level measurements of the original wall wart power supply (red line), an alternative power supply based on a Liner Regulator (blue line), and the TeddyNUC power supply (black line). The brown line is a zero Volt reference which is actually the measurement equipment internal noise. As can be seen the TeddyNUC power supply noise level is very close to the zero Volt reference.

For more information about our power supplies read here...


The TeddyNUC power supply is equipped with a high quality cable made of silver plated PTFE insulated wires. The cable capacitance is around 13pF/ft, and its resistance is also very low, around 10 milliohm/ft. Connector dimensions are 5.5mm outer and 2.5mm inner barrel diameter.