Audes ST-3000DC

High-Current Toroidal Transformer + DC Blocking for Demanding Audio Systems

The Audes ST-3000DC is a reference-level high-current power conditioner designed for large amplifiers, active loudspeakers, and advanced digital front-end systems.
Hand-built in Europe and engineered around a massive, custom-wound toroidal transformer with an exceptionally large core, the ST-3000DC delivers clean, stable, DC-free power without restricting dynamics — even during the most demanding musical passages.

If your system suffers from transformer hum, fluctuating performance, harshness, or noisy mains power, the ST-3000DC is one of the most powerful solutions available today.

DC Offset: The Hidden Enemy of High-End Audio

Modern homes often suffer from DC offset caused by:

• LED lighting and dimmers

• switching power supplies

• chargers and appliances

• solar inverters

• industrial grid noise

Even small amounts of DC can cause toroidal transformers to:

• hum or buzz

• vibrate mechanically

• draw power asymmetrically

• lose current capacity

• distort under load

The ST-3000DC includes a high-capacity DC blocker, ensuring the transformer receives pure, symmetrical AC power — resulting in:

• silent transformer operation

• stronger dynamic impact

• cleaner treble and midrange

• tighter, more controlled bass

• greater transparency

• more consistent performance throughout the day

Oversized Toroidal Transformer — Built for Serious Current

At the heart of the ST-3000DC is a large-core toroidal transformer engineered specifically for high-current audio reproduction.

Its design ensures:

• extremely low output resistance (0.4 Ω)

• fast delivery of current surges

• stable voltage under high load

• reduced electromagnetic leakage

• minimal mechanical vibration

• cleaner, quieter operation for connected components

Where typical DC filters rely on simple capacitor networks, Audes uses a true transformer-based architecture that preserves the full dynamic capability of powerful amplifiers.

This makes the ST-3000DC ideal for systems where dynamics, headroom, and realism matter.

Ideal for High-Current Components

The ST-3000DC is specifically designed to feed equipment that demands serious power delivery.

Perfect for:

• large Class A and Class AB power amplifiers

• integrated amplifiers (Luxman, Accuphase, Pass, etc.)

• monoblocks

• active loudspeakers

• powered subwoofers

• high-current DACs

• music servers and digital transports

• phono stages with heavy PSU draw

If your amplifier hums, buzzes, or loses control during dynamic peaks, the ST-3000DC provides the silent, symmetrical power foundation it needs.

Handcrafted European Engineering

Every ST-3000DC is built in Europe using premium-grade components, including:

• oversized toroidal transformer (custom-wound)

• robust AC wiring for high current

• heavy-duty connectors and sockets

• solid metal chassis with internal shielding

• optimized grounding structure

• vibration-damped transformer mounting

• high-integrity DC-blocking network

This is power conditioning without compromise — built to withstand years of heavy use.

What You’ll Hear

Systems powered by the ST-3000DC typically exhibit:

• quieter backgrounds

• greater separation and image stability

• deeper, more articulate bass

• smoother high frequencies

• more open midrange

• stronger dynamic expression

• a calmer, more natural musical flow

Depending on your power grid, the improvement may be subtle — or absolutely dramatic.

Audes at Authentic High End Brussels — Transparent, Real-World Testing

As with all power conditioners, we remain honest:
At Authentic High End Brussels, we were historically sceptical about such devices.

But after Steve performed methodical, long-term testing across many systems, the ST-3000DC proved to be one of the most consistently beneficial conditioners for high-current audio setups.

However:
The outcome still depends on:

• your home’s electrical environment

• interference levels

• the structure of your local grid

• your specific components

👉 This is why we strongly recommend trying the ST-3000DC in your own home.
We are genuinely curious to hear your results.

Why Choose the ST-3000DC at Authentic High End Brussels?

• Official Audes dealer for Belgium

• Real-world testing by Steve

• Expert system matching by Steve & High End Mary

• Private auditions & home trials

• Honest, evidence-based advice

• Specialized in high-current power conditioning

More info: Audes ST-3000DC