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The Cortex 10 is a fully-fledged full-range solution for medium-sized rooms up to approx. 25m². Like all speakers in the series, the bass frequency response can be equalized up to 16Hz thanks to Dolifet technology. The 6.5\" woofer even makes considerable listening levels possible. Thanks to its compact design and neutral tuning, it is suitable for space-saving hi-fi and home cinema solutions as well as for close to medium range applications in recording studios.
AMT Tweeter
The Air Motion Transformer (not to be confused with the visually similar \"ribbon\") is a special sound transducer whose basic principle was developed by Dr. Oskar Heil. Unlike conventional cone or dome tweeters, which in principle use a piston-like back and forth movement to displace or suck in air, here an accordion-like folded foil is moved in the magnetic field, which pushes air out of its gaps or sucks it in. This principle means that less mechanical material movement is required to generate the same sound pressure and acoustic distortions are reduced. Due to their geometric design, the sound of AMTs is somewhat more focused vertically as the frequency increases. This can have sonic advantages because reflections from the floor and ceiling are reduced.
DSP
With ABACUS active loudspeakers and subwoofers, the crossover, i.e. the division of the signals according to the frequency range, and the optimization of the loudspeaker characteristics are always carried out actively, i.e. before the power amplification (unlike with passive loudspeakers, where the already power-amplified signal is separated and influenced by coils and capacitors). Depending on the loudspeaker series and the associated complexity and price-performance ratio, ABACUS does this with analog filter circuits (e.g. C-Box, Trifon, Oscara) or, as here, with a digital signal processor.
The built-in digital signal processor (DSP) performs a wide range of different tasks without increasing the complexity of the components immeasurably. The DSP used in ABACUS provides countless filters, takes over the function of the active crossover, linearization of the frequency response, phase and delay corrections and, on top of that, switching and control functions. Once the signal has been digitized, it can be processed as required without any loss of sound quality, because every filter and every control function is then just a computing task that is processed at a high clock frequency. The time delay caused by the processor is only approx. 0.3 ms.
- 2-way shelf speaker- 2 Dolifet power amplifiers
- RMS power (total): Approx. 80 W, distributed over all channels
- Frequency response: 16…80->20.000 Hz
- Bass Roll-off: Continuously adjustable from 16 Hz (-6dB) and from 24 Hz to 80 Hz (-3dB), below -12 dB/oct. in each case.
- Bass-Pad: Range below 250 Hz continuously adjustable from -8 dB to +2 dB
- Tweeter: AMT
- Mid-bass driver: 180 mm/4 Ω
- Net enclosure volume: 9,5 l
