Direkt 1       as in Klang+Ton 1/2007

Direkt 1 aus Klang+Ton 1/2007
Technical data
- impedance: 8 Ohm
- rated SPL: 83 dB (at 2.83V, 1m)
- frequency range (-8dB): 39-22 000 Hz
- crossover frequency: ? Hz
- size (HxWxD): 30 x 22 x 26 cm
Thorsten Fischer designed the Direct1 for Akustik Art in Kiel, Germany. The loudspeaker was already displayed at the "Selbstbaumesse" (DIY Speaker Fair) in Gelsenkirchen, Germany in November 2006.

It's a reasonably priced point source speaker, incorporating a Tangband W5-938 SB coax driver.

Excerpt of the review in Klang+Ton 1/2007:
... "After we had placed the speakers away from the walls in our relatively large listening room, it became clear that the little bass drivers were undersized for the premises. But we had to give credit to the designer that he didn't try to blow up the upper base in compensation. Within minutes we got used to the slightly faint sound and we started to appreciate the clean and precise bass despite the lack of oomph. The midrange, adjoining the bass with no audible gap, is extremely precise and shows great attention to detail. Although some passion and dynamics are lacking at lower levels, the performance is never short of detail. If you crank up the volume, however, this slight restraint is forgotten rather quickly: Now the Direct1 got cracking. The ripples - on paper - in the high frequency range were not clearly audible. Sometimes we had the impression that vocalists were lacking some expression and authenticity; superior and much more expensive speakers handled vocals somewhat better. On the other hand, the Direct1 produced an impressive and well defined three-dimensionality with incredible depth and width, like almost no other speaker. Especially acoustic instruments were reproduced with clearly defined outline and they didn't budge. Natural reverberation on a recording created the illusion to sit in a much larger room." ...
 

Our kit consists of:

  • 1 x Tangband W5-938 SB
  • crossover kit (on the right)
  • bass reflex tube HP 50
  • a terminal
     with gold plated brass binding posts
  • one mat (half a pack) damping material
  • sealing tape
  • 8 x PAN screws
  • 1.5 m internal wiring 2 x 1.5 mm2
  • description and building instruction
  • the crossover kit to be mounted on wood
  • 1.5 mH core coil with 0.7 mm wire
  • 0.56 mH air core coil with 1mm wire
  • 0.39 mH air core coil with 1mm wire
  • 0.1 mH air core coil, 0.7 mm wire
  • 6.8 uF MKT capacitor
  • 4.7 uF MKT capacitor
  • 3.9 uF MKT capacitor
  • 3.3 uF MKT capacitor
  • 10 Ohm MOX10 resistor (brown-black-black)
  • 8.2 Ohm MOX10 resistor (grey-red-gold)
  • 1.2 Ohm MOX10 resistor (brown-red-gold)
  • 2.2 Ohm ceramic resistor, 10W
    		•

    Order No. str-direkt1, price per speaker (without cabinet)   EUR 87,00

    Direkt 1 with high-end cross over

    For the high-end crossover we have used MKP capacitors throughout:
    - for the bass section MKP capacitors with 400V
    - for the high frequency section Mundorf MCAP capacitors with 400V
    Without exception all coils should be low distortion air core coils. Therefore, we have replaced the
    - the 1.5 mH core coil with a 1.5 mH air core coil
    and to suppress the microphonics effect, the 0.1 coil at the tweeter was replaced by a backed varnish coil.

    Order No. str-direkt1-he, price per speaker (without cabinet)   EUR 111,00

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