Knif Rauman Nº1

Loudspeaker design is the ultimate craft in audio reproduction and making one is poised with difficulties. It is no coincidence that a wide variety of different basic operation principles and solutions exists to overcome the inherent difficulties and shortcomings. All of them carry some advantages and disadvantages, some more obvious than others.

All known loudspeakers technologies include compromises and the craft is a lot about finding the right ones. How to fit together the need for even frequency response and even radiation patterns? How to reproduce the huge dynamic range of well made recordings?

Design goals

The ultimate goal is where the acoustical requirements and estetically pleasing design meet. Everything works in harmony, and there is nothing extraneous. This is where Knif Rauman Nº1 wants to stand. Form follows function in the smoothly flowing surfaces of the sound wave guiding front panels. Aluminum castings provide visual rhythm to the enitireness.

Cross-over’s important role

The basic semiactive operation principle is somewhat unusual but firmly based in the aim to build the ultimate loudspeaker in its class.

Low frequency cross-over is best done before amplification for three reasons:

  • Passive parts for low frequency cross-over are huge, expensive and most importantly imperfect. The curves which can be realized without loosing amplifier's control over drivers are very limited.
  • Modern class D amplification is small, inexpensive and perfect for low frequency amplification. More exotic and low powered amplifiers can be used where they still have an edge, namely on mid and high frequencies.
  • Simple high quality analog equalizer can be implemented in the cross-over unit to tremendously ease the task of finding the correct balance and tame room resonances.

Features and Technical Specifications