Understanding power modes and standby behavior

Power management is a key aspect of Naim’s product design, balancing performance, convenience, and energy efficiency. Whether you're using a classic amplifier, a modern streamer, or an all-in-one system, understanding how your device handles power and standby modes will help you get the most out of your setup.

This guide explains the different power modes, the role of external power supplies, and why some products are designed with fixed power configurations.

Power Modes Explained

Naim products typically operate in one of three power states:

1. On (Operational Mode)

The device is fully powered and ready to deliver optimal performance. In this mode, all circuits are active, and the product is ready to play music or respond to commands.

2. Standby Mode

Standby reduces power consumption while keeping the device ready for quick activation. Depending on the product, standby may:

• Keep network connections alive
• Maintain clock synchronization
• Allow remote wake-up via app or control system

Note: Some legacy products do not support modern standby behavior and must be manually powered off.

3. Sleep Standby

This is a deeper standby mode available on newer Naim products. It further reduces power consumption while still allowing:

• Wake-up via app or remote
• Retention of basic system state

Sleep Standby is ideal for energy-saving without fully powering down the unit.

4. Off

The device is completely powered down. This is typically done via a rear power switch or by unplugging the unit. In this state, no functionality is available until the device is turned back on.

Why Power Supplies Matter

External power supplies are a hallmark of Naim’s modular upgrade philosophy. They serve several purposes:

• Isolate sensitive circuits from noise and interference
• Provide cleaner, more stable power to analogueue and digital sections
• Enable performance upgrades without replacing the entire unit

For example:

• The NDX 2 can be upgraded with an XPS DR or 555 PS DR
• The ND555 requires at least one 555 PS DR, with the option to add a second for further enhancement

These upgrades improve dynamics, detail, and musicality by reducing internal noise and improving voltage regulation.

Why Some Products Can’t Be Upgraded

Certain Naim products, such as the NaimUniti, UnitiQute, SuperUniti, and UnitiServe, were designed as all-in-one systems. Their internal architecture integrates power supply and audio circuitry in a way that does not support external upgrades.

This design choice ensures:

• Compact form factor
• Simplified user experience
• Lower cost of ownership

While these products cannot be upgraded with external power supplies, they still benefit from proper placement, high-quality cables, and firmware updates.

Why Include Power Supplies in Upgradeable Products?

Even in products that support external power supplies, Naim includes an internal supply to ensure out-of-the-box functionality. This allows users to enjoy excellent performance immediately, with the option to upgrade later.

Including a built-in supply also:

• Ensures compatibility with a wide range of setups
• Allows users to evaluate the product before investing in upgrades
• Maintains resale value and flexibility

Final Tips

• Use standby mode when not listening to music to reduce energy usage while keeping your system responsive.
• Consider external power supplies if your product supports them—they offer one of the most impactful upgrades.
• Consult your dealer to explore upgrade paths and ensure compatibility.

Keep firmware updated using the Focal & Naim app for optimal power management and performance