What a Regulated Power Supply Actually Does
Your turntable and phono stage are designed to amplify tiny signals from the cartridge. Any noise or fluctuation in the power they receive can be amplified along with the music, showing up as hum, hiss, or a general lack of clarity. A regulated power supply provides a stable, clean DC output, which helps your audio components perform as intended.
For many listeners, the first upgrade is not a new cartridge or speakers but the power feeding the sensitive electronics. A dedicated power supply can be a practical way to reduce noise without changing the character of your system.
When to Consider a Dedicated Power Supply
If you notice a low-level hum or background noise that changes with the volume control, your phono stage or turntable may be picking up interference through its power connection. A regulated supply can help, but first confirm that your component accepts an external power source and that the voltage and connector match.
Another scenario is when you want to isolate your audio gear from other household electronics. A separate power supply physically separates the power conversion from the audio circuitry, which can reduce noise and distortion.
Two Approaches to Cleaner Power
- Bryston PS-3 DC Regulated Power Supply For Phono Stages - Silver: The Bryston PS-3 is an ultra low-noise power supply for Bryston phono preamps. It separates power supply electronics from sensitive audio electronics to minimize noise and distortion. If you own a compatible Bryston phono stage or preamp, the PS-3 offers a dedicated, highly filtered DC supply that can noticeably lower the noise floor.
Bryston PS-3 DC Regulated Power Supply For Phono Stages - Silver - Rega PS2 Wall Wart Power Supply - 100mA: The Rega PS2 is a replacement wall-wart type 24-Volt AC adaptor for Rega's Planar 1, Planar 2, and Planar 3 turntables, as well as the Fono Mini A2D phono preamp. For Rega owners, the PS2 is a straightforward replacement that ensures your turntable or phono stage receives the correct AC voltage, which is essential for consistent performance.
Rega PS2 Wall Wart Power Supply - 100mA
Compatibility Is the First Check
A power supply is not a universal accessory. It must match your component's voltage, connector type, and power requirements. The Bryston PS-3 is designed for specific Bryston products: it is a cosmetic match for the BP-2 MM and BP-2MM/MC phono stages and is also compatible with the BP-26 preamplifier and BDP-series digital music players. However, it cannot be used with bus-powered external hard drives.
The Rega PS2 is limited to the listed Rega models. If you have a different turntable or phono stage, this supply is not confirmed to work. Always check your component's manual or contact the manufacturer to confirm compatibility before ordering.
What to Look For in a Regulated Supply
When comparing power supplies, focus on three things: the output voltage and current, the type of regulation, and the build quality. A well-regulated supply provides a consistent voltage even when the load changes, which is critical for sensitive audio circuits.
The Bryston PS-3 uses a fully analog power supply with a toroidal transformer and an all-steel chassis for shielding. These design choices contribute to its low-noise performance. The Rega PS2 is a simpler wall-wart adaptor, but it is the exact replacement Rega specifies for their products, which is often the safest choice.
Bryston PS-3 vs. Rega PS2: Which Fits Your System?
These two supplies serve different purposes. The Bryston PS-3 is a high-end, regulated DC supply for Bryston phono stages and preamps, offering a significant upgrade in noise reduction. The Rega PS2 is a basic AC adaptor meant to replace a worn or missing wall wart for specific Rega models.
Choose the Bryston PS-3 if you own a compatible Bryston component and want to minimize noise and distortion. Choose the Rega PS2 if you need a reliable replacement for your Rega turntable or Fono Mini A2D. There is no cross-compatibility between the two.
- Best for: Bryston PS-3: Bryston phono stages and preamps seeking ultra-low noise. Rega PS2: Rega Planar 1/2/3 and Fono Mini A2D needing a correct AC adaptor.
- Power type: Bryston PS-3: Regulated DC output. Rega PS2: 24V AC output.
- Noise reduction: Bryston PS-3: Designed to minimize noise and distortion. Rega PS2: Provides correct voltage, not a noise filter.
- Build: Bryston PS-3: Toroidal transformer, steel chassis. Rega PS2: Compact wall-wart design.
A Practical Upgrade Path
Start by identifying the weakest link in your vinyl chain. If your phono stage hums, a regulated supply like the Bryston PS-3 (for compatible Bryston gear) can be a worthwhile investment. If your Rega turntable has a failing wall wart, replacing it with the Rega PS2 is a simple and affordable fix.
Remember to verify compatibility before purchasing. A power supply that doesn't match your component's requirements can cause damage, so when in doubt, consult the manufacturer or a knowledgeable dealer.
