PLiXir Elite BDC Power Supply

PLiXiR Elite BDC Power Supply

The Elite BDC (Balanced Direct Current) Power Supply by PLiXiR benefits from two stages of regulation- an open-loop first-stage and a closed-loop feedback second stage. This means that the Elite BDC can scrub noise out of your power source, helping your hifi setup sing. Available in 5V/2A, 12V/2A, 12V/4A, 24V/2A configurations.

Please note: the 5V/2A version comes with a micro-USB adaptor, making it suitable for use with units like the Chord Qutest.

What PLiXiR say

The PLiXiR Elite BDC balanced DC power supply is designed to reduce all the noise types present in a DC power supply. Upon deep studies, it is apparent that traditional DC power supply circuit cannot eliminate them all.  These include Ground loop current and diode rectification/pollution noise.

PLiXiR's ground-up approach begins with a balanced AC power design, along with a two-stage voltage regulation consisting of an open-loop first-stage pre-regulator and a closed-loop feedback second stage. Their unique balanced AC power circuit effectively removes ground loop noise and reduces the diode noise. 

The first stage pre-regulation filters the bulk of the noise, specifically the high-frequency noise, and the heat from the second stage voltage regulator. The 2 stage regulation design as a "gate" to prevent the downstream noise from crossing back to the AC power hands.

True balanced power can only be attained if every component along the chain is purpose-built for such transmission. Mating Plixir’s Signature Balanced Power Cable with Plixir’s Balanced AC Conditioners and Balanced DC linear power supplies, we now have a total system and solution for balanced power transmission – the world’s first fully Balanced Power Delivery system.

The new Plixir Signature BPC is custom-designed from the ground up for balanced power delivery and transmission to your Hifi equipment. When used in conjunction with the Elite and Elementa BAC Balanced Power Conditioners, noise is rejected throughout the whole chain, right up to your equipment.

The Problem

DC Power Supplies are traditionally SMPS-based (switched-mode power supply) due to cost reasons: SMPS are cheaper, lighter to ship and accept a wide range of mains AC voltage.

Aftermarket linear DC power supplies aim to replace these for improved performance, but 99% of conventional linear DC power supplies on the market suffer flaws:

• Isolation of noise from the load to the mains AC is often not considered. This can potentially pollute the AC mains and from there, your equipment too.
• Traditional diode bridge noise injection to the signal ground is not taken into account at all. The higher the current delivered by the DC power supply, the bigger amount of noise will be injected to the system ground.

Designed to Provide Excellent Noise Specs and Safety

3-Stage Power Supply

PLiXiR’s range of DC power supplies, besides delivering excellent noise specs and safety, have considered the above points for their designs. Some of their unique design aspects include:

• A two-stage voltage regulation design consisting of a very low-noise, open-loop design, discrete transistor, class-A driver, pre-regulator first stage, and a closed-loop feedback regulator second stage. The first stage filters the bulk of the noise and takes away the heat from the second stage voltage regulator. The two-stage regulation acts as a “gate” to prevent the downstream noise from travelling back to the AC power mains. It eliminates all types of noise downstream to your equipment and prevents pollution upstream to the AC mains. PLiXiR like to call this method the brawn and the brain methoud. The pre-regulation stage (the brawn) handles most of these issues and isolates the actual regulator state (the brain) from these ill artefacts. Free of these influences, the actual voltage regulator will be able to perform optimally in terms of noise, slew rate and output impedance- under all rated load conditions.
• For the Elite Balanced DC power supply, PLiXiR further improved their performance with a Balanced design. With this design, there are no signal ground noise injections by rectifier diodes, and it allows the elimination of ground-loop problems. Switching noise contributions are from AC-DC rectification diodes are also reduced by half compared to conventional design. The downside is that the customised transformer will need to be doubled in size compared to a conventional design size to deliver the same power. The weight and size of the linear power supply will increase. We feel the benefits more than outweigh the issues involved.

Specification

• Output- Less than 1mVrms residual noise at DC output. Output Current available in 2/4/6 Amps current continuous.
• Input voltage- Available in 220-240 Vdc
• Casing Finish- Black anodized, sandblasted aluminium
• Weight- 2.5kg (2A), 3.2kg (4A)
• Dimensions (in mm)- 230 x 160 x 70
• Comes with- Includes one-meter-long PLiXiR High Current DC Power Cable with a 2.1mm or 2.5mm DC plug to mate with your equipment.
  • 5V/2A version comes with a 2.1mm plug and micro-USB adaptor

About PLiXiR Power

Plixir Power is a leading provider of high-quality audio industry power supplies and accessories. With a focus on delivering clean and reliable power to enhance audio performance, Plixir Power has gained recognition for its innovative solutions and commitment to quality.

Established as a passion project in 2014 by James Soh, the founder and engineer behind Sound Affairs, Plixir Power emerged as a response to power's critical role in audio systems. James, a seasoned professional with a background in audio-digital electronics design, recognised the profound influence of power on hi-fi equipment performance. Inspired by his extensive experience and knowledge, James set out to design power products that would optimise the performance of audio systems.

At the core of Plixir Power's product lineup are the popular Plixir Elite BDC and Plixir Elite BAC power supplies. These carefully engineered power supplies provide a solid foundation for audio systems, delivering clean, stable power to unleash the full potential of hi-fi equipment. With their neutral, natural, and pure tone, Plixir Elite power supplies are designed to allow your equipment to perform at its best, ensuring a truly immersive listening experience.

In addition to power supplies, Plixir Power offers a range of power cables designed to maximise the performance of audio systems. The Plixir Statement and Plixir Elementa Power Cables utilise high-quality materials and advanced construction techniques to minimise interference and deliver optimal power transmission. These power cables are designed to balance flexibility, durability, and superior audio performance.

At Plixir Power, the philosophy is rooted in effective engineering principles. James believes that the best solutions are often the simplest, and this principle guides the design and development of Plixir Power products. One key aspect of Plixir's approach is the focus on balanced power delivery, which has been proven to offer significant improvements in audio performance. Plixir Power is dedicated to promoting the use of true balanced power solutions in home hi-fi systems, ensuring a solid and stable power foundation for audio equipment to thrive.

The Plixir Elite range of balanced AC power products exemplifies Plixir Power's commitment to excellence. These products are created without compromises, utilising the finest commercially available components to create a no-object, cost-no-object solution. Plixir Power is proud to be the first company in the world to offer a complete balanced power delivery system, including balanced AC power conditioners, balanced power cables, and balanced DC power supplies.

As Plixir Power continues to push the boundaries of power delivery in audio systems, customers can expect to introduce more innovative products based on effective, balanced power delivery. Plixir Power's mission is to provide audio enthusiasts with the tools they need to unlock the true potential of their hi-fi systems, delivering pristine power for unparalleled audio performance.

Experience the transformative power of Plixir Power and elevate your audio system to new heights. Explore the range of Plixir Elite BDC and Plixir Elite BAC power supplies, along with the exceptional Plixir Statement and Plixir Elementa Power Cables, and discover a new level of audio clarity, dynamics, and musicality.