Capella Micro   Shelf speaker as in Hobby Hifi 3/2018

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 84,5 dB
  • size (HxWxD): 320 x 176 x 250 mm
  • frequency range (-8dB): 50 - 25000 Hz
  • crossover frequency(s): 3500 Hz
  • speaker type: bass reflex

Capella Micro is a two way compact speaker.

Capella Micro is a bass-reflex cabinet loudspeaker with drivers of Mivoc .

The kit is delivered with the following drivers:
- a Mivoc KFT 130 M tweeter
- a Mivoc XAW 110 HC-Black 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 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 perfect.

At medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0,6% above 500 Hz.

Our kit consists of

  • Mivoc KFT 130 M
  • Mivoc XAW 110 HC-Black
  • 2x Bass reflex tube HP35, 35x125 mm, black
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 0,25x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 4x20 black, cross recess, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKT CAP 1.0 uF / 160 Vdc
  • Audaphon MKT CAP 2.2 uF / 160 Vdc
  • Audaphon MKT CAP 4.7 uF / 160 Vdc
  • Audaphon MKT CAP 6.8 uF / 160 Vdc
  • 1.0 mm air core coil, 1.5 mH/0.63 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • MOX5-resistor 8.2 Ohm/5 Watt (grey-red-gold)
  • MOX10-resistor 12 Ohm/10 Watt (brown-red-black)

Kit without cabinet, price per speaker   EUR 139,00 excl. VAT: € 116.81 / $ 131.99

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils 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 tweeter are of type polypropylen (MKP) Clarity-Cap SA 630.

Kit with high-end-crossover without cabinet, price per speaker   EUR 165,00 excl. VAT: € 138.66 / $ 156.68

Optionally high-pass filter for Capella Micro

Our 100 Hz kit consists of

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

  • Mundorf, electrolytic capacitor, etched, 220 uF/63 Vdc
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 3.3 Ohm (orange-orange-gold)

Kit without cabinet, price per unit   EUR 14,25 excl. VAT: € 11.97 / $ 13.53

Our 100 Hz high-end kit consists of

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

  • Audaphon MKP CAP Superior 22 uF / 400 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 100uF / 50 Vdc
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 3.3 Ohm (orange-orange-gold)

Kit without cabinet, price per unit   EUR 42,50 excl. VAT: € 35.71 / $ 40.36

Our 120 Hz kit consists of

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

  • Mundorf, electrolytic capacitor, etched, 150 uF/63 Vdc
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 5W 1.8 Ohm (brown-grey-gold)

Kit without cabinet, price per unit   EUR 13,25 excl. VAT: € 11.13 / $ 12.58

Our 120 Hz high-end kit consists of

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

  • Audaphon MKP CAP Superior 15 uF / 400 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 68uF / 50 Vdc
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 5W 1.8 Ohm (brown-grey-gold)

Kit without cabinet, price per unit   EUR 35,00 excl. VAT: € 29.41 / $ 33.24

Our 150 Hz kit consists of

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

  • Mundorf, electrolytic capacitor, etched, 100 uF/100 Vdc
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 3W 0.56 Ohm 5% (green-blue-silver)

Kit without cabinet, price per unit   EUR 13,60 excl. VAT: € 11.43 / $ 12.91

Our 150 Hz high-end kit consists of

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

  • Audaphon MKP CAP Superior 18 uF / 400 Vdc
  • Mundorf, electrolytic capacitor, unetched, 82uF / 50 Vdc
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 3W 0.56 Ohm 5% (green-blue-silver)

Kit without cabinet, price per unit   EUR 31,30 excl. VAT: € 26.30 / $ 29.72

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 8,45 excl. VAT: € 7.10 / $ 8.02

universal PCB

If you prefer to mount the crossover components on a 140 x 102 mm universal PCB instead on wood:
Universal PCB RA140, order no.. I-2765, price per unit:   EUR 3,70 excl. VAT: € 3.11 / $ 3.51
We recommend one board per kit (two boards for a speaker pair)


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