Ex Machina Soundworks PULSAR, Руководство пользователя

Страница: 8 / 18

fully optimized to a given geometry. This has allowed us to make a midrange diaphragm that
remains a perfect piston over two octaves past its in use frequency range, but that is sufficiently
large and precisely shaped to behave as an optimized waveguide for the concentric tweeter.
Combined with our proprietary DSP coding, this gives our loudspeakers 90° conical off-axis
coherence and flat phase response across the entire frequency range.
3. A thin-lip, fully underhung surround, which all but eliminates the on-axis suckout and phase
cancellation issues that plague most coaxial drive units.
4. An advanced neodymium motor structure and high performance spider, which combine with
the space age diaphragm materials to produce high efficiency and vanishingly low distortion.
2. SUBWOOFER
Both Pulsar and Quasar feature the same SEAS designed and built 22cm subwoofer drive units.
High performance, long-throw suspension systems and massive magnets/voice coils give these
subwoofers 28mm of linear peak to peak excursion and 56mm before damage. Combined with
an ultra low resonant frequency of 24hz and pistonic linearity all the way up to 1.2khz, they
provide our loudspeakers with extraordinary low end power, extension and precision.
3. CABINET
All our loudspeakers feature highly braced, sealed cabinets, which completely eliminate the
group delay, air compression and chuffing that plague most traditional ported loudspeakers.
They are made from a combination of 19mm and 30mm thick Valchromat: a much stiffer, denser
and better damped material than the traditional MDF. This makes our cabinets highly inert and
non-resonant, all but eliminating destructive coupling to the pistonic output of the drive units.
4. AMPLIFIERS
All our loudspeakers employ second generation Hypex Ncore amplifier modules, which combine
high efficiency with ultra-low distortion and output impedance. Each drive unit is powered by its
own dedicated amplifier, with 100 watts available to the midrange and tweeter and 250 watts
available to each subwoofer.
5. DSP & CONVERSION
The final, “secret sauce” of our loudspeakers is our proprietary, in-house DSP deployment and
calibration technology. Each loudspeaker has its own floating point SHARC-based DSP, as well
as high performance AKM Velvet Sound based conversion and extremely low jitter clocking. As
the final step in production, a unique, serial number specific measurement and calibration is
applied to each loudspeaker, linearizing the frequency response to +/- 1db, and the phase
response to +/- 15° across the entire specified range. This in turn means that any two speakers
of a given model will always act as a matched pair, regardless of their serial number sequence.
7