Who is ICEpower?

ICEpower is a supplier of superior audio solutions based on world class technologies and
competences within class D amplifiers, switch mode power supplies, digital signal processing and system design.

We offer Intelligent, Compact, Efficient and Powerful solutions in the form of:

  • Audio IC’s
    Integrated circuits for audio class D amplifiers
  • Amplifier Power Modules
    Plug-and-play amplifier power modules for a wide range of audio applications
  • Turnkey Solutions
    Including box builds, speaker backplates and custom designed modules
  • Audio Software
    ICEsound – embedded audio solutions for mobile products 

Class D amplifiers

The audio power amplifier plays an essential role in every system that generates audible sound. For decades, amplifiers have been produced using analogue (Class A and AB) designs, which are very inefficient and result in voluminous, heavy and rather expensive products. The innovation cycle of analogue audio power conversion has come to its maturity and hardly any innovation can be made there.

On the other hand, switching or Class D amplification techniques are only at the beginning of their development. These technologies carry a large potential for delivering much higher efficiency and audio performance, making audio products more reliable, of higher quality, smaller size, and involving lower costs.

Instead of linear power regulation used in Class AB amplifiers, which leads to energy losses in power transistors, Class D amplifiers use switching transistors that operate only at two stages – “on“ or “off”. Nearly no energy loss occurs at the transistor and nearly all the power is carried to the transducer.

Class D technologies have been around for decades, but until the 1990s their design and integration characteristics have not been developed to the level necessary for achieving high performance in quality audio and hi-fi applications. It is only in the 1990s that the semiconductor and digital technologies have been developed to enable enhancement of Class D technologies.

ICEpower have pioneered in developing new technologies to enhance Class D amplification and bring the audio quality to the level accepted by audiophiles. This allowed for subsequent introduction of Class D technologies into a wide range of audio applications.



ICEpower® Class D amplifiers have the following advantages:

  • Audio performance on the level with or better than Class AB amplifiers
  • Significantly higher energy efficiency of audio products
  • Audio products can be made much smaller and lighter, external heat sinks can be eliminated
  • Significantly decreased manufacturing costs
  • Higher integration of components is possible
  • Resulting in more design freedom and more attractive products
  • Due to the possibility of designing smaller products, more channels can be integrated into a single solution or audio product
  • Higher quality of products
  • The possibility of increasing the standard of existing products
  • All of this taken together benefits our environment in numerous ways and makes Class D amplification a “green” technology
  • For examples, the 10-channel solutions that ICEpower has created for Pioneer Electronics’ Susano A/V receiver could not have been developed without applying switching technologies – Class AB amplifiers could not sustain this amount of channels with high audio quality in a single product.


The power of ICEpower

The great advantage of ICEpower is the breadth of our offering. You can pick-and-choose the products and services that fit to your particular needs.
In some cases this may be that you design and manufacture your own solution based on our IC’s and design support.
In other cases, when you lack the time or resources,
we can design and manufacture complete products for you on a turnkey basis.

Our co-operation with the largest and most prestigious audio brands in the world, 
enable us to establish branding and co-branding collaborations for the benefit of our customers.
Our own brand, ICEpower, can also play a role in this connection.

So, if you are looking to bring high quality audio products to the market at a,
competitive price/value – this is us. This is the power of ICEpower.


ADAM Audio Berlin
A world leading brand in studio monitors
and stunning high-end loudspeaker systems
powered by

In recent years amplifier technology experienced its second big change after going from tubes to transistors some 40 years ago.
You can still find semiconductors in this new generation of amplifiers,
but the signals to be amplified are treated in a completely new and different way.

Pulse Width Modulation

PWM (Pulse Width Modulation) – sometimes referred to as Class D amplification, sometimes called Switching Amp Technology – converts the incoming signal to a series of rectangular waveforms of equal height. The width of the rectangles varies in time and the relation of the width of the rectangles represents the musical signal. This waveform can be amplified much more simply, as the transistors are not modulated anymore; instead they are used as switches that only turn the power supply voltage on and off.

It is possible that a very fast mechanical switch could do the job, but power transistors are a better choice for the task, so PWM amplifiers still work pretty much like conventional Class AB designs. It is important to note there are no bits and bytes involved, so “Digital Amplifier” is a misleading and inaccurate term.

Advantages of PWM

The main advantage of PWM amplifiers is their extremely high efficiency (>90%). As a consequence the heat to be dissipated is only one fifth of earlier designs, leading to much lower temperatures within the amps and making the use of heat sinks obsolete.

This principle has been known for decades, but time was needed to develop units that perform at the leading edge in sonic reproduction quality and yet still maintain the high efficiency mentioned previously. The ADAM units use the new technology for both the amp and the power supply section (i.e. no more transformers) combined with state of the art input and filter sections to achieve the best in multi-channel active studio monitoring.




But boy, could he play guitar

– 1999, year of foundation

ICEpower has close ties to the iconic, Danish high-end consumer electronics company, Bang & Olufsen. In 1999, a phD thesis on efficient, compact Class D amplifiers at the Technical University of Denmark (DTU) drew the attention of the Bang & Olufsen management. This resulted in a joint venture, which created the foundation for ICEpower a/s. From the start ICEpower became – not just a department of Bang & Olufsen – but a separate, limited company.

At that time, the practical application of Class D technology to audio was new and generating interest in the audio world. The advantages of high efficiency/high power density amplifiers made possible by the new Class D topology became apparent.

ICEpower’s close relationship with Bang & Olufsen made it possible to access resources, design tools, technical expertise, quality processes, and business knowledge at an early stage of the company. And more importantly, it laid the foundation of the high-quality level of ICEpower’s products.


Strategy and products

The Bang & Olufsen period has enabled ICEpower to develop into a high-quality amplification provider with high audio performance. ICEpower is also the most competitive solution among its peers. We always present a price offer that is better than the competition or at least at the same level as the competition, but with better product characteristics.

Our cost abilities have been reached by building up a best practice in product development and design for cost – also reflected in the latest AS Series (Amplification, Supply). Second and on top of this, ICEpower has decided to always offer our products and services at prices better than similar solutions from others.


Today ICEpower has the agility, power and will to make our customers competitive in their respective market segments.

Supply Chain

The supply chain has been restructured partly by a new EMS co-operation, and partly by a new New Product Introduction-process enabling production of finished goods and cost-effectiveness.


The song remains the same

– 2016 and onwards

In 2016, realizing the potential of the business as an independent entity, a management buyout supported by Industry Development (Industri Udvikling) – a Danish private equity company – allowed ICEpower to finally begin the development of its full potential.

The relationship with Industry development is not a “hit and run” kind of thing. Industry Development is funded by Danish taxpayer’s savings and the purpose is to turn SME’s (small and medium enterprises) into larger enterprises. The strategic direction and decisions are made by the management of ICEpower, and the management are also majority shareholders.

One of the first strategic moves of ICEpower in 2016 was to acquire Audio Bricks (Sweden) and it’s holding company, thereby also getting access to fundamentals from Anaview – a former competitor founded by Patrik Boström. The two founders of Audio Bricks, Patrik Boström and Lars Press Petersen, were well-known to ICEpower. ICEpower had co-operated with both earlier, and Lars held the position as Innovation Manager at ICEpower from 2003-2008.

Besides the Audio Bricks products (now ICEbricks), Patrik Boström and Lars Press Petersen also brought their patents and ODM-business agreements with a number of semiconductor and A/V companies into ICEpower.

The shareholding managers of ICEpower today are Keld Lindegaard Andersen, CEO, Mads Emil Solgaard Hansen, Sales & Marketing Director, Patrik Boström, CTO amplification and OEM, Lars Press Petersen, CTO SMPS, research and PRO audio.

Recently a number of engineers from TI (Texas Instruments) in Denmark have joined ICEpower at its new HQ in Copenhagen, Denmark


The world’s most prestigious audio brands

– the 21st century

The relationship with Bang & Olufsen enabled ICEpower to quickly become one of the leading companies in the amplification world. Starting in high-end niche markets, ICEpower developed a range of premium quality audio power conversion engines used by some of the world’s most prestigious audio brands. Both within hi-fi and PRO audio brands, ICEpower served clients such as Bowers & Wilkins, Pioneer, Sony, Alpine, Jeff Rowland, Rotel, RCF as well as Bang & Olufsen’s own products.

Later on, ICEpower were used in Bang & Olufsen’s automotive platforms for AUDI, Mercedes, Aston Martin and BMW. The automotive platform co-operation is today continued with HARMAN. Gradually ICEpower built a powerful OEM business, delivering platforms used in low power systems (e. g. mobile phones) to large scale pro audio line arrays systems.