Hifi Selbstbau TwoAndOne   Floorstanding as in K+T 4/2024

Technical data
  • impedance: 3 Ohm
  • sensivity (2,83V/1m): 96 dB
  • size (HxWxD): 1200 x 330 x 458 mm
  • frequency range (-8dB): 50 - 13000 Hz
  • crossover frequency(s): Hz
  • speaker type:

TwoAndOne is a two way floorstanding speaker.

TwoAndOne is a bass-reflex cabinet loudspeaker with drivers of Visaton .

The kit is delivered with the following drivers:
- a Visaton B200 full range driver
- two Visaton BG 20 woofers

The loudspeaker has been developed by Thomas Ahlersmeyer and Theo Winterscheid.

The frequency response of this speaker is nearly linear.

The decay spectrum is nearly perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,5% above 300 Hz and doesn't exceed 0,5% at 95 dB at 1 m between 300 and 15000 Hz.

An excerpt from the Klang+Ton review (Translation of the author into English)

Conclusion of the magazine Klang+Ton:

Our kit consists of

  • Bass reflex tube MBR-110
  • 2x Visaton BG 20, 8 Ohm
  • Visaton B200, 6 Ohm
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 2x Damping Sonofil 100 x 35 cm for 20 litres
  • 3x Foam N25, 97,5x49x4 cm, black
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x1.5 mm2, transparent
  • 2x Pan screws 4x20 black, torx, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.

  • Audaphon MKT CAP 22 μF / 160 Vdc
  • Audaphon MKT CAP 100 μF / 160 Vdc
  • 1.4 mm air core coil, 1.0 mH/0.29 Ohm
  • Metal-oxide resistor, 10W 1.5 Ohm (brown-green-gold)

Kit without cabinet, price per speaker   EUR 431,00 excl. VAT: € 362.18 / $ 394.78

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils on important parts of the crossover 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. The capacitors for the Visaton B200 are of type polypropylen (MKP) Clarity-Cap PWA 400 V.

  • ClarityCap PWA capacitor 22 μF / 400 Vdc
  • ClarityCap PWA capacitor 100 μF / 400 Vdc
  • Mundorf baked varnish air core coil BL140, 1.0 mH/0.30 Ohm
  • Metal-oxide resistor, 10W 1.5 Ohm (brown-green-gold)

Kit with high-end-crossover without cabinet, price per speaker   EUR 479,00 excl. VAT: € 402.52 / $ 438.75

universal PCB

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 / $ 4.31
We recommend one board per kit (2 boards per speaker pair)


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