• A 300VA toroidal transformer with an enormous current delivery capability forms the front end of the PSX-R. The 30,000 microfarad slotted foil reservoir capacitors ensure that very low ESR and wide bandwidth are presented to the linear mode regulator stage that follows.
• The symmetry as a design objective set out in the Cyrus range continues to be an important topology feature of this wide dual bandwidth DC amplifier working as a linear voltage regulator in an identical manner for the positive and negative sides of the PSX-R.
• Current sharing fast double output power transistors ensure quick response in providing the demanded current from the partnering Cyrus unit. Low noise high gain amplifiers in a propriety design provide the remarkable load and line regulation afforded by the PSX-R.
• The intelligent nature of the control circuitry built into the PSX-R not only sense the requirement of the partnering Cyrus component but also relinquish the power-on control to that unit to allow ergonomic operation of the system. At the same time this elegant circuit protects against mal-operation of the PSX-R beyond the designed parameters.
• Connection to the partnering Cyrus unit is made through a quality XLR cable assembly that ensures tight coupling and minimal loss in efficient and fast energy transfer. In all instances the PSX-R may be added into the system without any changes to the existing components and by merely plugging the unit in.
• In low Power applications such as CD or DVD players the addition of the PSX-R provides a highly stable external Power with massive inertia which ensures ideal battery like operation for such units. In high Power applications, on the other hand, the PSX-R while establishing a very stiff voltage source behind the power amplifier, it successfully inhibits mains related distortions and charging spikes from reaching the signal lines of the amplifier.
• The quality lightweight die-cast enclosure of Cyrus PSX-R has a myriad of advantages both electrically and mechanically. The integrated heat-sink design enhances the thermal efficiency allowing higher performance to size ratio. Additionally, the non-resonant nature of the alloy minimises microphonic effects, while its non-ferrous composition provides an effective shield from external electro-magnetic disturbances. This also eliminates coupling of the power transformer stray magnetic fields to the sensitive audio circuitry.
Electrical Outputs
±35.5 VDC for stereo power and integrated amplifiers
±18-30 VDC for mono-bloc power and other amplifiers
±21 VDC for low power applications
Specifications
Load regulation - ±35.5V 0.2% full power when connected to a Cyrus Integrated amplifier
Load regulation - ±21V 0.001% @ 20VA
Line regulation - 0.2% at full output load
Noise - <40 V rm
Dimensions - (H x W x D) 73 x 215 x 360 (mm)
Weight - 6kg
Finish - Silver and Brushed Black
Compatibility
Integrated amplifiers: 8 XP, 8 XPd, 8 XPd QX,
Pre-amplifiers: Pre XP d, Pre XP d QX, DAC XP+,
Power amplifiers: 8 Power, X Power,
CD players: CD8 SE, CD XT SE+