Pinpoint (Blade)   Floorstanding as in K+T 4/2015

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 85 dB
  • size (HxWxD): 1150 x 200 x 300 mm
  • frequency range (-8dB): 39 - 21000 Hz
  • crossover frequency(s): 400 Hz
  • speaker type: bass reflex

Pinpoint is a 2 Way F.A.S.T (Fullrange and subwoofer technology) floorstanding speaker with a design like KEF Blade. The kit is delivered with Visaton B80 as fullrange driver and 4 woofer Visaton W 100 S 8 Ohms.

The crossover for the fullrange driver is a first order high-pass filter in series to a rejector circuit and a drain circuit to damp the loudness about 2000 Hz. The filter for the Woofers is a second order low pass with a drain circuit to linearize the impedance.

Between 100 Hz and 8000 Hz, the frequency response of this loudspeaker is very linear on axis, above 8000 Hz the response rises up to 5 dB. The increase of the sound pressure above 5000 disappears at the directivity measurements with 15 or 30 degrees. The decay spectrum is nearly perfect. At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are lower than 0.5% above 300 Hz and rises not over 1% at 95 dB at 1 m .

Our kit consists of

  • Visaton B 80
  • 4x Visaton W100 S, 8 Ohm
  • Bass reflex tube HP70, 68x160 mm, black
  • Mundorf oder Eltim Angel Hair 0.025 Kg
  • 2x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 4m Speaker cable 2x1.5 mm2, transparent
  • 3x 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.
  • Audaphon MKT CAP 10 μF / 160 Vdc
  • Audaphon MKT CAP 68 μF / 160 Vdc
  • electrolytic capacitor, etched, 220 μF/63 Vdc
  • electrolytic capacitor, etched, 470 μF/63 Vdc
  • electrolytic capacitor, unetched, 82uF / 50 Vdc
  • Mundorf air core coil L50, 0.39 mH/0.84 0hm
  • M core coil M14, 3.9 mH/0.22 0hm
  • Mundorf H core coil H50, 3.9 mH/0.96 0hm
  • Mundorf H core coil H71, 5.6 mH/0.62 0hm
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • 2x Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit without cabinet, price per speaker   EUR 367,00 excl. VAT: € 308.40 / $ 329.99

Kit with high-end crossover

On important parts the high-end kit is delivered with baked varnish air coils 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. In the filter for the fullrange driver are polypropylen (MKP) capacitors instead of polystyrol (MKT) capacitors.

Kit with high-end-crossover without cabinet, price per speaker   EUR 438,00 excl. VAT: € 368.07 / $ 393.83

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 5,55 excl. VAT: € 4.66 / $ 4.99

universal PCBs

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,70 excl. VAT: € 3.95 / $ 4.23
We recommend two boards per kit (4 boards per speaker pair)

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