DD (standing for dynamic duo) is a 3 way floorstanding loudspeaker with closed bassrange system that employs two woofers Visaton W250 S, 8 Ohm. On top is a satellit cabinet with tweeter Visaton G 25 FFL and mid-woofer Visaton W 170S.
DD has been developed by Holger Barske and Thomas Schmidt.
The crossover consists of a 3rd order high-pass filter (18 dB per octave slope) for the tweeter, a bandpass filter (12 dB high - and 12 dB lowpass) for the mid-woofer. The two woofers are connected to a 2nd order low-pass filter.
Between 80 Hz and 20000 Hz, the frequency response of this loudspeaker is linear on axis, with a loudness sounding. The decay spectrum is nearly perfect except a resonance at 1200 Hz. At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are lower than 1% above 200 Hz and below 2% at 95 dB at 1 m .
Kit without cabinet, price per speaker EUR 576,00 excl. VAT: € 484.03 / $ 566.32
The high-end kit comes with ClarityCap PX capacitors for the tweeter. The important inductances are baked varnish air core coil for minimizing microphonic effects. - The current flow through the coil creates a magnetic field which sets the reel of wire in motion. This motion induces a voltage in the coil which adds itself to the signal. The stiffer the reel of wire is, the less the signal will be altered.
Kit without cabinet, price per speaker - not available
If you prefer to mount the crossover components on a 240 x 165 mm universal PCB instead on wood: Universal PCB RA240, order no.. str-RA240, price per unit: EUR 8,60 excl. VAT: € 7.23 / $ 8.46 We recommend one plate for one kit (for a pair of speakers you need 2 plates)
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