Triangle GAMME STRATOS 260 Mode D'emploi page 16

DPS Dynamic Pulse System
The Volante uses the principle of front/rear emission, created for the Magellan project.
The Volante therefore has a midrange and a tweeter at the front and the rear.
After many hours of listening and measurements, this configuration proved its capacity to adapt to various listening environments.
Thanks to the DPS, the speaker is less sensitive to the creation of hot and cold points in its environment.
Similar to live music, such as a symphonic orchestra, a jazz quarter or a string quartet, the DPS principle radiates the same energy to the front
and the rear of the emission point.
This means a wide opening of the sound scene without denaturing the original signal:
Sound reproduction becomes holographic while at the same time conserving excellent sound image precision.
The location of the listener in relation to the speaker is no longer critical.
The music is thus more realistic and more expressive.
RPC Regulated Phase Crossover
Currently, no loud speaker can reproduce alone the bandpass audible to the human ear (20 to 20kHz). For high fidelity sound
reproduction, this bandpass must therefore be divided into several parts.
TRIANGLE column speakers use three-way filtering. The TRIANGLE philosophy is to use two or three woofers between 400Hz and 20Hz, one
or more midranges between 4000HZ and 400Hz, and a tweeter between 20kHz and 4000Hz.
For several years, we have been working on optimizing different driver units:
- The titanium diaphragm of the tweeter is perfectly coupled with the pavilion and reproduces very fine trebles.
- The midrange loud speaker uses the small-fold external suspension principle to ensure good control of the diaphragm in the 400Hz to
500Hz bandpass.
- The new woofer, thanks to its S suspension, can have significant displacement with very little distortion. In addition, the use of several
woofers of 16 cm diameter, instead of a single loud speaker with a diameter corresponding to the emission surface of these loud
speakers, significantly improves dynamic and performance.
We also manufacture two-way speakers where the midrange-woofer part is reproduced by a
single small-fold surrounding driver. This type of transducer represents the best compromise
between the quality of the midrange and performances in low frequencies.
Thanks to research carried out on the Magellan filtering, we have designed a new type of
crossover. We have compensated the difference in propagation time of the waves between
the tweeter and the midrange, and taken into account the response in phase of the loud
speakers when design the filtering. The aim of this crossover process is to eliminate any
phase gaps between the tweeter and the midrange.
The tweeter pavilion does not only serve to increase sensitivity, but also to ensure good
timing between the tweeter and the midrange thanks to the depth of the horn. In this way,
the tweeter is located on the same temporal plane.
In this way, the wave propagation time between the two drivers is compensated. Once
filtered, they will merge to form a single sound source.
filtering zone for the frequency response are eliminated.
The filter cut-off slopes are significant and associated with the natural curves of the driver. Thus filtering between the tweeter and the midrange
is 24 dB/octave and 12 dB/octave between the midrange and the woofer.
Between the tweeter and the midrange, crossover is of 4th order type. For the midrange and the woofer, it is of 2nd order type.
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In addition, disturbances in the
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