Sharky   Shelf speaker as in Hobby HiFi 6/2015

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 87 dB
  • size (HxWxD): 196 x 100 x 250 mm
  • frequency range (-8dB): - Hz
  • crossover frequency(s): Hz
  • speaker type:

Sharky is a dipole speaker to get more indirect sound. Sharky you can use on top of speakers to get more surround effects. Sharky has been developed by Bernd Timmermanns.

The crossover consists of a 2nd order high-pass filter (12 dB per octave slope) for the fullrange speaker. The crossover frequency can be select between 300 an 1100 Hz.

Sharky you can order with different high-pass frequencies

Our 340 Hz kit consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 47 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf air core coil L50, 4.7 mH/3.777 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 33,00 excl. VAT: € 27.73 / $ 32.45

Our 410 Hz kit consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 33 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf, electrolytic capacitor, unetched, 5.6 uF / 70 Vdc
  • Mundorf air core coil L50, 3.9 mH/3.39 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 34,00 excl. VAT: € 28.57 / $ 33.43

Our kit 480 Hz consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 33 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf air core coil L50, 3.3 mH/3.13 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 32,00 excl. VAT: € 26.89 / $ 31.46

Our kit 590 Hz consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 22 uF/100 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf air core coil L50, 2.7 mH/2.81 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 32,00 excl. VAT: € 26.89 / $ 31.46

Our kit 720 Hz consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 22 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf air core coil L50, 2.2 mH/2.50 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 31,00 excl. VAT: € 26.05 / $ 30.48

Our kit 880 Hz consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 10 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf, electrolytic capacitor, unetched, 8.2 uF / 70 Vdc
  • Mundorf air core coil L50, 1.8 mH/2.07 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 32,00 excl. VAT: € 26.89 / $ 31.46

Our kit 1060 Hz consists of

  • SPX-31M
  • 1,5m Speaker cable 2x0.75 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.
  • Mundorf, electrolytic capacitor, etched, 15 uF/100 Vdc
  • Mundorf, electrolytic capacitor, unetched, 4.7 uF / 70 Vdc
  • Mundorf air core coil L50, 1.5 mH/1.85 0hm
  • Metal-oxide resistor, 5W 10 Ohm 2% (brown-black-black)

Kit without cabinet, price per speaker   EUR 30,00 excl. VAT: € 25.21 / $ 29.50

universal PCBs

If you prefer to mount the crossover components on a 140 x 102 mm universal PCB instead on wood:
Universal PCB RA140, order no.. I-2765, price per unit:   EUR 3,70 excl. VAT: € 3.11 / $ 3.64
We recommend a half board per kit (one board for a speaker pair)


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