MuViStar L   Floorstanding as in K+T 1/2022

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 85 dB
  • size (HxWxD): 968 x 226 x 262 mm
  • frequency range (-8dB): 38 - 32000 Hz
  • crossover frequency(s): 1600 Hz
  • speaker type: bass reflex

MuViStar L is a two way floorstanding speaker.

MuViStar L is a bass-reflex cabinet loudspeaker with drivers of Mundorf and Visaton.

The kit is delivered with the following drivers:
- a Mundorf AMTU80W1.1 air motion transformer (ribbon-tweeter)
- a Visaton AL 170, 8 Ohm woofer

The loudspeaker has been developed by Thomas Schmidt and Holger Barske.

The crossover consists of:
- a first order high-pass filter (6 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly perfectly linear.

The decay spectrum is nearly perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,6% above 300 Hz and doesn't exceed 0,8% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Mundorf AMTU80W1.1
  • Visaton woofer AL 170, 8 Ohm
  • Bass reflex tube BR50, 50x145 mm, black
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 2x Damping Sonofil 100 x 35 cm for 20 litres
  • 6x Bitumex board 32.5 x 24.5 cm, 2,5 mm
  • 0,5x Foam N25-30, 100 x 50 cm, black
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x1.5 mm2, transparent
  • 0,5x Pan screws 3.5x17 black, torx, 8 pieces
  • 0,5x 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 10 μF / 400 Vdc
  • Audaphon MKP CAP Superior 18 μF / 400 Vdc
  • Mundorf air core coil L140, 3.0 mH/0.55 Ohm
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)

Kit without cabinet, price per speaker   on request

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 capacitor for the Mundorf AMTU80W1.1 is of type polypropylen (MKP) Clarity-Cap CSA 630 V.

  • ClarityCap CSA capacitor 10 μF / 630 Vdc
  • Audaphon MKP CAP Superior 18 μF / 400 Vdc
  • Mundorf baked varnish air core coil BL140, 3.0 mH/0.55 Ohm
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)

Kit with high-end-crossover without cabinet, price per speaker   on request

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 22 μF / 160 Vdc
  • ceramic resistor 10 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 8,30 excl. VAT: € 6.97 / $ 7.53

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 / $ 4.27
We recommend one board per kit (2 boards per speaker pair)


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