Ex-demonstration, Power Supplies, Sources
Cyrus PSU-XR Power Supply NOS
Cyrus Audio PSU-XR power supply. New in sealed box.
£1799
£2495
The Cyrus PSU-XR power supply is on demonstration at DNA Audio.
PSU-XR
The PSU-XR is Cyrus’ latest external power supply and introduces a brand-new approach to providing clean and stable power for your compatible Cyrus XR host product. Incorporating its onboard micro-processor, the PSU-XR communicates directly with the host product to consistently provide the best configuration of power from a full range of voltage output levels.
Providing multiple supplies, all of the output voltages from the PSU-XR are digitally controlled internally, so are extremely stable and virtually noise-free. The PSU-XR really is their best-performing power supply, capable of providing up to 60% more power than the PSX-R2 and due to its revolutionary design, is up to 50% more efficient.
Customer Review:
“WOW absolutely stunning, words cannot explain just how good an upgrade this has been. The first one I tried on my CDi-XR, was jaw-dropping, the level of detail, clarity, stage depth height and width is breathtaking, a stunning holographic listen. The next one on the Pre-XR, again another stunning lift in clarity and detail imagining was tighter and more focused.”
Power Supply Upgrades
The sound quality delivered by any audio component, whether an amplifier or a source component such as a CD player, depends heavily upon the quality and capacity of its power supply. The PSU-XR power supply upgrade provides a sound upgrade for Cyrus XR components by enhancing both the quality and capacity of their internal power supplies.
Five Independent Power Supplies
There are five independent power supplies in the PSU-XR. All five power outputs route to a connected XR component through a multi-way umbilical cable:
- A high-capacity logic supply to power digital circuitry in a connected XR component.
- Two fixed voltage power supplies that are intended to power sensitive, low voltage analogue circuitry.
- Two variable voltage high capacity power supplies to feed power to low or high consumption analogue circuitry. The variable power supplies also have two unregulated voltage settings that can be applied to boost the power supply in high-consumption circuitry such as power amplifiers.
Full Isolation for Low Noise
Fifteen separate transformer windings, ground isolated regulation circuitry and separate output power and ground returns in the umbilical cable minimise electrical noise in the multiple power feeds to a connected XR component.
Intelligent Configuration
PSU-XR configuration takes place via the cable from the connected XR component. Each Cyrus design can enable and configure the power supplies in the PSU-XR to meet its circuit requirements exactly.
Technical Specifications:
- Low voltage supply – Standby mode +5V DC
- Low voltage supply – Operational +5V DC
- Fixed voltage supply – Standby mode 0V
- Fixed voltage supply – Operational +24V DC
- Variable supply – Standby mode 0V
- Variable supply – Regulated +10V to +45V DC
- Variable supply – Unregulated +45V or +56V DC
- Size 75mm high x 215mm wide x 355 mm deep
- Weight 7.7kg
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