Euraudio PS1US specification
Welcome to the Euraudio PS1US specifications, in which you can read about the system requirements (application criteria), operation and technical data of the PS1US.
The PS1US is a symmetrical (+/-) power supply with a ground loop breaker circuit, and is recommended for home-made audio amplifiers. Please find the PS1USc assembly instructions here.
It can be used for amplifiers that need a dual or in other words symmetric (+/-) supply voltage. Tip: The PS1US can be used for the Euraudio CTA12 low distortion and the Euraudio LDA14uc ultra low distortion audio amplifiers as well.
See Technical Data.
The PS1US rectifies the two sinusoidal AC voltages connected to its input, then it smooths it by using filter capacitors, thus generating the symmetric (+/-) supply voltage that is necessary for most audio amplifiers.
To void ground loops, the grounding of the PS1US has a star-like arrangement, furthermore the PS1US contains a so-called ground loop breaker circuit, which prevents hum from appearing through the earthing conductor, if devices with earth ground protection against electric shock are connected to your amplifier, and the chassis of your amplifier is also earthed.
At 25°C ambient temperature unless otherwise noted.
Bridge rectifier input voltage: max. 2x65 VAC
Size of applicable filter capacitors: snap-in type, max. 30 mm diameter
Allowed continuous output current (Ta=50°C): max. 6 A
Recommended maximum audio
amplifier power (class B or AB, Ta=50°C): 2x75 W
/ 4 ohms; 1x150 W / 4 ohms; 2x120 W / 8 ohms; 1x240 W / 8 ohms