TDC – The Game Changer –
TDC – Time Delay Control,
Exclusive to our speakers
Trust your ears and hear for yourself what real innovation in loudspeaker construction means in terms of sound
TDC technology
When a music signal passes through a crossover, it is delayed in time by
the coils used there. The larger the coils, the greater the time delay.
As there is no coil (low-pass filter) in the signal path of the
tweeter, the tweeter signal is not delayed and is emitted first,
followed by the mid-range signal and finally the bass signal. Broadband
impulses are thus reproduced with a time distortion and lose their
dynamic temporal coherence. The music sounds weak and tired.
With TDC technology, we delay the signal from the
tweeter to such an extent that it is emitted at the same time as the
midrange signal, so that the music is put back together correctly. As
our speakers all have very low crossover frequencies from the bass to
the midrange (120 Hz - 166 Hz) and the ear is very insensitive in the
bass range, there is no need for a time delay between the midrange and
the bass. In addition, instruments in this frequency range naturally
resonate much more slowly than the time difference generated by the
coils.
Thanks to the uninterrupted reproduction with TDC,
there is no more distortion in the acoustic phase of the loudspeaker and
the music is wonderfully detached from the loudspeaker and plays from
"wall to wall" in the listening room - resulting in a perfect illusion
of spatial sound.
For the first time in hi-fi history, the TDC
technology in combination with our ultra-spaced crossover filters
produces perfect impulse reproduction and can absolutely be described as
a game changer.
Further information and a detailed explanation of TDC now available in the new YouTube film
Existing solutions on the market
Some manufacturers try to solve the problem of the time offset by moving
the tweeter geometrically backwards. Unfortunately, this type of
correction has negative side effects. There are very strong reflection
and diffraction effects on the cabinet, resulting in new virtual sound
sources that interfere strongly with the original signal and cancel out
the advantage. In addition, the geometric solution does not take into
account the intermediate values in the transition area, which are very
large, especially with flat filters. All in all - well-intentioned, but
not very effective!
