ViTraL 130   Floorstanding as in Hobby Hifi 2-3/2023

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 84 dB
  • size (HxWxD): 900 x 220 x 340 mm
  • frequency range (-8dB): 32 - 25000 Hz
  • crossover frequency(s): 2200 Hz
  • speaker type: transmission line

ViTraL 130 is a two way floorstanding speaker.

ViTraL 130 is a transmission-line loudspeaker with drivers of Visaton .

The kit is delivered with the following drivers:
- a Visaton KE 25 SC tweeter
- a Visaton AL 130 woofer

The loudspeaker has been developed by Bernd Timmermanns.

The crossover consists of:
- a 3rd order high-pass filter (18 dB per octave slope) for the tweeter.
- a 3rd order low-pass filter (18 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear.

The decay spectrum is perfect.

At medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0,4% above 200 Hz.

An excerpt from the Hobby HiFi review

Conclusion of the magazine Hobby HiFi:

Our kit consists of

  • Visaton KE 25 SC, 8 Ohm
  • Visaton woofer AL 130, 8 Ohm
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • 0,5x Audaphon Damping 10, 970 x 470 mm, adhesive
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x2.5 mm2, transparent
  • Pan screws 4x20 black, torx, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • Audaphon MKP CAP Superior 10 μF / 400 Vdc
  • Audaphon MKT CAP 2.2 μF / 160 Vdc
  • Audaphon MKT CAP 10 μF / 160 Vdc
  • Mundorf air core coil L140, 0.47 mH/0.19 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • Mundorf H core coil H100, 1.8 mH/0.19 0hm
  • Metal-oxide resistor, 10W 1.5 Ohm (brown-green-gold)
  • 2x Metal-oxide resistor, 10W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 0.68 Ohm 5% (blue-grey-silver)

Kit without cabinet, price per speaker   EUR 452,00 excl. VAT: € 379.83 / $ 410.22

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 KE 25 SC are of type polypropylen (MKP) Mundorf MCAP EVO Öl 450 V.

  • Mundorf MCAP EVO Oil 4.7 μF / 450 V
  • Mundorf MCAP EVO Oil 10 μF / 450 V
  • 2x Audaphon MKP CAP Superior 12 μF / 400 Vdc
  • Mundorf Hepta Coil II45, 0.47 mH/0.27 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf baked varnish air core coil BL71, 1.0 mH/1.02 Ohm
  • Mundorf H core Hepta Coil LH45, 1,8 mH/0.18 Ohm
  • 2x Mresist Classic 6,8 Ohm / 10 Watt
  • Metal-oxide resistor, 10W 1.5 Ohm (brown-green-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)
  • Metal-oxide resistor, 5W 0.68 Ohm 5% (blue-grey-silver)

Kit with high-end-crossover without cabinet, price per speaker   EUR 548,00 excl. VAT: € 460.50 / $ 497.34

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).

  • Audaphon MKT CAP 33 μF / 160 Vdc
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • ceramic resistor 10 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 15,20 excl. VAT: € 12.77 / $ 13.79

universal PCB

If you prefer to mount the crossover components on a 159 x 127 mm universal PCB instead on wood:
Universal PCB RA160, order no.. str-RA160, price per unit:   EUR 5,90 excl. VAT: € 4.96 / $ 5.35
We recommend one board per kit (two boards for a speaker pair)


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