Mirach   wall-mounted speaker as in K+T 3/2019

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 87 dB
  • size (HxWxD): 700 x 310 x 168 mm
  • frequency range (-8dB): 45 - 23000 Hz
  • crossover frequency(s): 1500 Hz
  • speaker type: bass reflex
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Mirach is a two way wall-mounted speaker.

Mirach is a bass-reflex cabinet loudspeaker with drivers of Wavecor .

The kit is delivered with the following drivers:
- a Wavecor TW30WA14 tweeter
- a Wavecor WF152CU14 woofer

The loudspeaker has been developed by Daniel Gattig and Dennis Frank.

The crossover consists of:
- a 2nd order high-pass filter (12 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 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

  • Wavecor silk dome tweeter TW030WA14, 8 Ohm
  • WF152CU14, Wavecor Mid/Woofer, 8 Ohm, paper cone, BD, phase plug
  • Bass reflex tube HP50, 50x145 mm, black
  • 0,5x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Female banana jacks, red and black
  • 1m Speaker cable 2x1.5 mm2 black/red
  • 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 5.6 uF / 400 Vdc
  • Audaphon MKT CAP 22 uF / 160 Vdc
  • 1.3 mm air core coil, 1.8 mH/0.45 Ohm
  • 0.7 mm air core coil, 0.68 mH/0.70 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)

Kit without cabinet, price per speaker   EUR 314,00 excl. VAT: € 263.87 / $ 292.89

Kit with high-end crossover

The high-end kit is delivered with a foil coil on the most important part 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 tweeter is of type polypropylen (MKP) Clarity-Cap ESA 250 V. The other one is a Clarity Cap PWA capacitor with 160V.

Kit with high-end-crossover without cabinet, price per speaker   EUR 336,00 excl. VAT: € 282.35 / $ 313.41

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 12,17 excl. VAT: € 10.23 / $ 11.35

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 / $ 4.38
We recommend a half board per kit (1 board per speaker pair)

Measurements for this kit

measurmentsMeasurements for this loudspeaker

Pictures Gallery

PhotosPictures of this speaker


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