Cyrus Audio 40 PSU
Phono power supply
What it is
Cyrus 40 Series external PSU — optional outboard upgrade for any 40 Series component. What HiFi: "lifts the 40 PPA's performance to a significant degree" with "increase in scale, authority and dynamic finesse". Cross-compatibility note: also enhances 40 AMP integrated amplifier, 40 CD player, 40 ST streamer, and legacy XR-series components. Digitally-controlled output voltages claimed stable and noise-free. UK-built Cambridgeshire.
OUTPUT VOLTAGE: multiple rails, digitally controlled and auto-negotiated per partner. No user-published voltage spec.
What the reviewers said
Cyrus 40 PSU dedicated power supply Cyrus PSX-R2 / 40 PSU heritage· Electrical noise floor
resolution... particularly good Pursuit Perfect System (Ellis) 2023 (PSU-XR)· Low-level noise floor
weakest purchase case of the three Home Theater HiFi (Martin) 2023 (PSU-XR)· Electrical noise floor
How it scores
Clarity
- Electrical noise floor 71 from listening evidence
LowerVolume
- Low-level noise floor 74 from listening evidence
Specifications
| cable to phono | Cyrus proprietary multi-pin |
|---|---|
| compatible phonos | Cyrus-40PPA |
| notes |