SR4 Black

The Paul Hynes Design SR4 power supply unit is designed for powering a range of digital and analogue audio interface equipment with a single rail requirement. There are many products available in the market with different voltage requirements so it makes sense to provide an easy adjustable power supply to cover a number of voltage options, thus making the power supply more universal in application when users change their equipment.

SR4 Black

incl. VAT, plus shipping

Delivery Time 1 - 7 Business days

Product Information

Size or Dimensions

W = 110mm, H = 50mm, D = 230mm

Product Details

The SR4 output voltage is externally switch-able via a switch on the back panel. The SR4-12 has switch positions for 5v, 7v, 9v and 12v. The SR4-19 has switch positions for 9v, 12v, 15v and 19v.


The available output current is 2A continuous and 20A transient.

The SR4 uses a low noise high performance discrete regulator that is used in other highly regarded Paul Hynes Design products. The SR4 mains transformer is configured as a balanced mains isolation transformer to provide exceptional mains born common mode interference rejection.


As standard the SR4 does not come with a mains lead. You can use a generic mains lead if you want, and it will still produce a very good performance, but use of a high quality mains lead with give worthwhile sonic improvements.


The output DC connector is a 4 pin gold plated Neutrik XLR and there are two metallurgy options for high performance DC leads, annealed copper or annealed fine silver. DC lead prices are for 0.2 metre, 0.5 metre and 1 metre. Other lead lengths can be supplied so ask for a quote if you require a different length.

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