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  1. Home >
  2. Hi-Fi >
  3. Hi-Fi Accessories >
  4. Power Supplies

Hi-Fi Power Supplies

Hi-fi power supplies let you upgrade your audio system at its foundation, ensuring low noise and high stability. With DC filters and isolated outputs, they deliver cleaner power for better performance.

Hi-fi power supplies let you upgrade your audio system at its foundation, ensuring low noise and high stability. With DC filters and isolated outputs, they deliver cleaner power for better performance.

This reduction in electrical noise helps your system reproduce music with greater clarity and precision. Lower distortion and quieter background levels allow finer details to emerge, making instruments and vocals sound more natural.

Showing 24 of 24 products

Pro-Ject High Power-IT DC Power Supply Upgrade

Pro-Ject High Power-IT DC Power Supply Upgrade
£25.00
1 in stock

Sonos Move 2 Loop Charging Dock, White

Sonos Move 2 Loop Charging Dock, White
Wireless charging dock for Sonos Move 2
£79.00
1 in stock

Sonos Move 2 Loop Charging Dock, Black

Sonos Move 2 Loop Charging Dock, Black
Wireless charging dock for Sonos Move 2
£79.00
1 in stock

Devialet Mania Charging Station

Devialet Mania Charging Station
Compatible with Devialet Mania speakers
£89.00
1 in stock

iFi Audio GND Defender Ground Loop Eliminator

iFi Audio GND Defender Ground Loop Eliminator
Breaks ground loops for hum-free audio
£99.00
12 in stock

Audiolab DC Block Direct Current Blocker, Silver

Audiolab DC Block Direct Current Blocker, Silver
Removes DC from AC mains supply
£99.00
5 in stock

Audiolab DC Block Direct Current Blocker, Black

Audiolab DC Block Direct Current Blocker, Black
Removes DC from AC mains supply
£99.00
1 in stock

Pro-Ject Power Box S3 Phono, Silver

Pro-Ject Power Box S3 Phono, Silver
All-in-one power supply for phono setup
£159.00
2 in stock

Pro-Ject Power Box S3 Phono, Black

Pro-Ject Power Box S3 Phono, Black
All-in-one power supply for phono setup
£159.00
2 in stock

Lithe Audio Pro Series PoE Bolt-On Adaptor Module

Lithe Audio Pro Series PoE Bolt-On Adaptor Module
Power your speaker with network cable
£217.50
2 in stock

Pro-Ject Accu Box S2 Battery Power Supply, Silver

Pro-Ject Accu Box S2 Battery Power Supply, Silver
Purest & cleanest power using non-switching power supply
£279.00
Available for order

Pro-Ject Accu Box S2 Battery Power Supply, Black

Pro-Ject Accu Box S2 Battery Power Supply, Black
Purest & cleanest power using non-switching power supply
£279.00
Available for order

Audiolab DC Block 6 Direct Current Blocker, Black

Audiolab DC Block 6 Direct Current Blocker, Black
6 IEC outlets offer clean audio
£349.00
2 in stock

Audiolab DC Block 6 Direct Current Blocker, Silver

Audiolab DC Block 6 Direct Current Blocker, Silver
6 IEC outlets offer clean audio
£349.00
1 in stock

Lehmann Audio PWX Power Supply

Lehmann Audio PWX Power Supply
Only top notch electronic parts.
£349.00
Available for order

Pro-Ject Power Box RS Uni 1-way TT Turntable Power Supply, Silver

Pro-Ject Power Box RS Uni 1-way TT Turntable Power Supply, Silver
Suitable for Pro-Ject RPM, Xtension, Signature
£499.00
Available for order

Pro-Ject Power Box RS Uni 1-way TT Turntable Power Supply, Black

Pro-Ject Power Box RS Uni 1-way TT Turntable Power Supply, Black
Suitable for Pro-Ject RPM, Xtension, Signature
£499.00
1 in stock

Pro-Ject Power Box DS3 Sources, Silver

Pro-Ject Power Box DS3 Sources, Silver
Cohesive power supply for six components
£629.00
Available for order

Pro-Ject Power Box DS3 Sources, Black

Pro-Ject Power Box DS3 Sources, Black
Cohesive power supply for six components
£629.00
Available for order

Pro-Ject Power Box RS2 Phono Linear Power Supply, Silver

Pro-Ject Power Box RS2 Phono Linear Power Supply, Silver
Power any Pro-Ject 15V DC turntable
£799.00
Available for order

Pro-Ject Power Box RS2 Phono Linear Power Supply, Black

Pro-Ject Power Box RS2 Phono Linear Power Supply, Black
Power any Pro-Ject 15V DC turntable
£799.00
Available for order

Pro-Ject Power Box RS2 Amp, Silver

Pro-Ject Power Box RS2 Amp, Silver
Power supply upgrade for Amp Box RS2
£899.00
1 in stock

Pro-Ject Power Box RS2 Amp, Black

Pro-Ject Power Box RS2 Amp, Black
Power supply upgrade for Amp Box RS2
£899.00
1 in stock

AudioQuest Niagara 1200 Low Z Power Noise Dissipation System

AudioQuest Niagara 1200 Low Z Power Noise Dissipation System
Advanced noise filtering power supply
RRP £1,349.00
£1,009.00
1 in stock

About Hi-Fi Power Supplies

Hi-fi power supplies provide a fundamental upgrade over the standard power supplies that come with most equipment. If you’re connecting to mains power with a standard power supply, you might notice unwanted hum or background noise creeping into your system, especially at higher volumes. This is because, in the UK and Europe, the 230V AC system alternates at 50Hz (50 times per second), which can introduce audible noise into speakers at 50Hz and 100Hz.

By upgrading to a dedicated power supply, you can reduce this interference, resulting in cleaner, more accurate sound reproduction.

Many hi-fi power supplies also include a ground lift function to eliminate unwanted noise caused by ground loops, which can act as antennas for interference. Ground loops occur when multiple components are connected to different grounding points, creating unwanted hum and buzz.

A ground lift helps break this loop by isolating or rerouting the grounding path, ensuring all components share a common ground. This reduces noise, prevents signal degradation, and improves overall system performance.

More advanced power supplies may also feature a voltage readout for real-time monitoring of AC input and an internal power reservoir to maintain a steady output voltage. This ensures your hi-fi system receives a consistent and stable power supply, compensating for fluctuations in the mains grid.

Hi-Fi Power Supply FAQs

What is a hi-fi power supply?

A hi-fi power supply is a component designed to provide cleaner, more stable power to audio equipment. By reducing noise, like buzzing or hissing, and voltage fluctuations introduced through the mains power, it helps improve sound quality and system performance. Many feature DC filtering, isolated outputs, and ground lift functions to minimise interference.

Do hi-fi power cables make a difference?

Hi-fi power cables can make a difference by rejecting electrical noise and improving power delivery to audio equipment. High-quality cables often feature better shielding, thicker conductors, and superior connectors, which help minimise interference and ensure a more stable current flow.

Why does AC current make noise?

AC current makes noise due to electromagnetic interference (EMI) and harmonic distortion from the mains supply. It can pick up interference from electrical devices, power lines, and radio signals, while poor grounding and voltage fluctuations further contribute to unwanted noise in audio systems.

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