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

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 87 dB
  • size (HxWxD): 286 x 700 x 168 mm
  • frequency range (-8dB): 45 - 23000 Hz
  • crossover frequency(s): 1500 Hz
  • speaker type: bass reflex
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Mirach-Center is a two way wall-mounted speaker.

Besides the center there is a wall speaker/satellite avaiable.

Mirach-Center 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
  • 2x Bass reflex tube HP50, 50x143mm, 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 μF; / 400 Vdc
  • Audaphon MKT CAP 22 μF; / 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 306,08 excl. VAT: € 263.86 / $ 308.72

Price for a set of 5 loudspeakers of custom speakers of any color   EUR 6684,13 excl. VAT: € 5762.18 / $ 6741.75

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.

  • ClarityCap PWA capacitor 22 μF; / 160 Vdc
  • ClarityCap ESA capacitor 5.6 μF; / 250 Vdc
  • Mundorf copper foil coil CFC16-1.8mH/0.50Ohm
  • Mundorf baked varnish air core coil BL71, 0.68 mH/0.71 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)

Kit with high-end-crossover without cabinet, price per speaker   EUR 327,53 excl. VAT: € 282.35 / $ 330.35

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 8.2 μF; / 160 Vdc
  • 0.7 mm air core coil, 1.5 mH/1.13 Ohm
  • ceramic resistor 10 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 11,86 excl. VAT: € 10.22 / $ 11.96

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 4,58 excl. VAT: € 3.95 / $ 4.62
We recommend one board per kit (2 boards per speaker pair)

Measurements

measurmentsMeasurements on this speaker

Pictures

PhotosPictures of this loudspeaker

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