Cyrus Power modifications for PSX-R use

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flambart

Member
Joined 2009
#1
Hi,

I've recently bought a nice power amp Cyrus Audio Power. It sounds superbly, and I wish to connect it to my beloved PSX-R power supply.

Similarly of what I did with my Cyrus III, I suppose that some modifications will have to be done inside the power amp.

Someone has any idea about?

Thanks a lot in advance to everyone for your (always!) precious hints.

Ciao, Paolo
 
#2
A fully regulated 300W DC power supply, the PSX-R uses intelligent connectivity which automatically adjusts its output parameters to suit the partnering Cyrus component.

Connection to a partnering Cyrus unit is made through a high quality XLR cable. In all instances this audiophile power supply can be added into the system without any changes to the existing components.
PSX-R – Cyrus Audio
 
#3
Yes, this is 100% true with any recent Cyrus Audio amp.

Unfortunately, the old generation of Cyrus amps and power amps was not ready to be connected to a PSX-R without modifications.

It has to be said that those interventions are quite simple to do, it's a matter of few coloured wires and a couple of jumper links to be repositioned internally.

The problem, is to know how...😕
 
#7
Ok. Seems this amp is more complicated than the 3 and 3i i have experience with.

The PSXR uses a simple ttl logic circuit to determine whether an amp or something else is connected and adjusts the output voltage between 22v and 35v. It also monitors the power on/off button of the amp. At least that is how the old PSXR i reversed decades ago worked.
 
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