TriniTI   Floorstanding as in K+T 6/2014

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 85 dB
  • size (HxWxD): 1530 x 190 x 360 mm
  • frequency range (-8dB): 45 - 22000 Hz
  • crossover frequency(s): 180, 2100 Hz
  • speaker type: transmission line

Oka is a loudspeaker that should be used as wall speaker. To do so there are two possibilities: You can build the speaker as floorstander or you build it as shelf speaker that can be fixed to a wall.

Oka is developed by Dennis Frank und Daniel Gattig as bass reflex system.

The harmonic distortion is low (mostly less than 0.2% above 300Hz at 85 dB/1m). The decay spectrum is without any fault.

Our kit consists of

  • Visaton ceramics tweeter KE 25 SC, 8 Ohm
  • 6x mid-woofers Visaton TI 100, 8 Ohm
  • PE sealing tape, 5x2 mm, 7.5 m
  • 2x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 4m Speaker cable 2x1.5 mm2, transparent
  • Allen wood screws, black, 4x25 mm, 32 pieces
  • Acoustic cover cloth black, 150 x 75 cm
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • Audaphon MKT CAP 6.8 uF / 160 Vdc
  • Audaphon MKT CAP 68 uF / 160 Vdc
  • Mundorf, electrolytic capacitor, etched, 150 uF/63 Vdc
  • Mundorf, electrolytic capacitor, etched, 470 uF/63 Vdc
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • 1.0 mm air core coil, 3.3 mH/1.2 Ohm
  • Mundorf bs140 core coil 10mH/0.38Ohm
  • Mundorf ferrite core coil F50 10mH/3.49Ohm
  • Metal-oxide resistor, 10W 1.5 Ohm (brown-green-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit without cabinet, price per speaker   EUR 1180,00 excl. VAT: € 991.60 / $ 1150.25

Kit with high-end crossover

Our high-end version employs a Mundorf EVO MCAP Supreme-oil capacitor. In the mids part of the crossover Clarityy Caps of type PWA are delivered. Beside BS140 core coil the crossover contains only Mundorf baked varnish air coils.

Kit without cabinet, price per speaker   EUR 1263,00 excl. VAT: € 1061.34 / $ 1231.16

Impedance correction

If you want to use a valve amplifier with this speaker an impedance correction should be employed. In this case the component quality is less important; therefore, we offer only one kit (upon request higher quality components are available).


Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 10,90 excl. VAT: € 9.16 / $ 10.63

universal PCB

If you prefer to mount the crossover components on a 240 x 165 mm universal PCB instead on wood:
Universal PCB RA240, order no.. I-2767, price per unit:   EUR 7,60 excl. VAT: € 6.39 / $ 7.41
We recommend one board per kit (two boards for a speaker pair)


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