Supra MainBlock MD03-EU MK3

The Supra MainBlock MD03-EU/SP MK3 is a power strip designed to optimize the audio quality of your hi-fi system. This model, the result of the expertise of Swedish manufacturer Supra, provides protection against electrical disturbances while enhancing the sound performance of your devices.

Multidimensional Protection for Your Equipment

The MD03-EU/SP MK3 incorporates several advanced technologies to effectively protect your electronic devices. Its surge protection system (SP) operates on all three lines—phase-to-earth, neutral-to-earth, and phase-to-neutral—offering optimal safety against voltage spikes. This protection surpasses the usual standards, which often only cover phase-to-neutral protection.

The aluminum chassis also plays a crucial role in safeguarding your equipment. It acts as a shield against external electromagnetic fields, significantly reducing interference that can affect sound quality. This shielded design ensures a more stable and clean electrical environment for your audio devices.

Intelligent Filtering for Superior Sound Quality

At the heart of the MD03-EU/SP MK3 is the NIF (Non-Intrusive Filtering) system, a patented technology by Supra. This RFI (Radio Frequency Interference) filter effectively reduces high-frequency noise from modern household electronic devices without compromising the dynamics of the audio signal.

The MD03-EU/SP MK3’s filtering capability is impressive, achieving up to 40 dB of noise attenuation. This performance results in a significantly lower noise floor, leading to a noticeable improvement in the clarity and definition of your audio system.

Thoughtful Design for Optimal Performance

Supra has paid meticulous attention to every design detail of the MD03-EU/SP MK3. The internal wiring uses 2.5 mm² oxygen-free copper conductors, ensuring optimal current transmission. This power strip can handle a continuous power load of up to 2400 watts, providing ample capacity to power even the most demanding audio systems.

The integrated Schuko sockets allow you to connect your devices in either direction, making it easier to optimize the phase for each component in your audio chain. This flexibility helps reduce common ground noise and enhances the overall sound quality of your system.

European Craftsmanship for Quality Assurance

The MD03-EU/SP MK3 is meticulously crafted, with components sourced exclusively from Sweden and Germany. Final assembly takes place at Supra’s factory in Ljungskile, Sweden, ensuring rigorous quality control at every stage of production.

This local manufacturing approach allows Supra to maintain high-quality standards and ensure exceptional reliability for its products. It’s a mark of trust for discerning audiophiles seeking equipment built to last.

Versatility and Easy Integration

While primarily designed for high-end audio systems, the MD03-EU/SP MK3 is versatile enough for a variety of applications. Its ability to support up to 2400 W makes it compatible with a wide range of electronic devices, from home theater systems to computer setups.

The power strip can be wall-mounted or placed on a flat surface using the included rubber feet and brackets. This installation flexibility makes it easy to integrate into different environments, whether in a hi-fi cabinet or directly on a wall to save space.

Technical Specifications

General Specifications

• Protection against nearby lightning strikes and other surges (three-way SP)
• Noise attenuation up to 40 dB
• Maximum power: 2,400 W at 230 V / 10 A
• Protection against alternating fields and surges
• Network interference filter (NIF)

Construction

• Shielded aluminum chassis (protection against electric, electromagnetic, and magnetic fields)
• Internal wiring made of 2.5 mm² oxygen-free copper
• Installation: wall-mounted or placed on a flat surface (rubber feet and mounting brackets included)

Electrical Characteristics

• Rated current/voltage: 10 A / 250 V / 2,400 W
• Surge protection (type 3):
  • Uc = 2.5 kV (Phase-Neutral)
  • Uc = 4.0 kV (Phase or Neutral-Ground)
  • Up = 2.0 kV (Phase-Neutral)
  • Up = 2.05 kV (Phase or Neutral-Ground)
• Maximum radio frequency interference (RFI) attenuation: 40 dB, enhanced filtering

Connectivity

• Input socket: SUPRA MCH-10 with 10 A slow-blow fuse
• Output sockets: 3× SUPRA MCH-16/EU, Schuko

Dimensions

• Width × Height: 90 × 50 mm
• Length: 271 mm

Filtering

• Socket No. 1: without network interference filter (NIF)
• Surge protection on all sockets
• Last socket: enhanced filtering with maximum attenuation