MiniSat Basic 8 Ohm, Shelf speaker   as in Hobby Hifi 3/2014

Technical data
- impedance: 8 Ohm
- sensivity (2,83V/1m): 83 dB
- size (HxWxD): 282 x 174 x 200 mm
- frequency range (-8dB): 65 - 21000 Hz
- crossover frequency(s): 2500 Hz
- speaker type: closed box

MiniSat Basic is a small shelf speaker developed by Bernd Timmermanns. MiniSat Basic is available as 4 Ohm version or as 8 Ohm version. It contains a Visaton bass loudspeaker W130S (in 4 or 8 Ohm) and a Visaton dome tweeter SC10.

The construction is quite simple: only 8 small rectangular cut boards are needed.

The crossover consists of second-order filters.

The frequency response is flat on 15 degree angle (horizontal deviation). The decay spectrum is without error. The non-linear distortions are less than 1% above 200 Hz at 90 dB SPL (1 m).
 

  

Our 8 Ohm kit consists of

  • Visaton tweeter SC 10 N
  • Visaton woofer W130 S, 8 Ohm
  • PE sealing tape, 5x2 mm
  • 0,25x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 black, cross recess, 12 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a piece of wood

  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • electrolytic capacitor, etched, 15 μF/100 Vdc
  • electrolytic capacitor, unetched, 4.7 μF / 70 Vdc
  • 0.5 mm air core coil, 0.33 mH/0.75 0hm
  • 0.5 mm air core coil, 4.7 mH/3.777 0hm
  • 1.0 mm air core coil, 1.8 mH/0.7 Ohm
  • Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit without cabinet, price per speaker (8 Ohm) EUR 117,00 excl. VAT: € 98.32 / $ 107.17

Kit with high-end crossover

The kit with high-end crossover contains four Mundorf copper foil coils and in series to the loudspeakers Mundorf capacitors of high quality, like a silver/gold/oil capacitor in series to the tweeter.

  • ClarityCap PWA capacitor 4.7 μF / 160 Vdc
  • Mundorf MCAP EVO Oil 4.7 μF / 450 V
  • electrolytic capacitor, unetched, 15uF / 70 Vdc
  • 0.5 mm air core coil, 4.7 mH/3.777 0hm
  • Mundorf baked varnish air core coil BL71, 0.33 mH/0.48 Ohm
  • Mundorf baked varnish air core coil BL100, 1.8 mH/0.70 Ohm
  • Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit with high-end-crossover without cabinet, price per speaker (8 Ohm) EUR 148,00 excl. VAT: € 124.37 / $ 135.56
 

 

Kit with high-pass filter for usage with a subwoofer

If you want to use a subwoofer, MiniSat basic should be built with a high-pass filter:

Our kit consists of

  • dome tweeter Visaton SC 10 N
  • woofer Visaton W130 S, 8 Ohm
  • PE sealing tape, 5x2 mm
  • 0,25x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 black, cross recess, 12 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a piece of wood

  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • electrolytic capacitor, etched, 15 μF/100 Vdc
  • electrolytic capacitor, etched, 150 μF/63 Vdc
  • electrolytic capacitor, unetched, 4.7 μF / 70 Vdc
  • 0.5 mm air core coil, 0.33 mH/0.75 0hm
  • 2x 0.5 mm air core coil, 4.7 mH/3.777 0hm
  • 1.0 mm air core coil, 1.8 mH/0.7 Ohm
  • Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit without cabinet, price per speaker (8 Ohm) EUR 134,00 excl. VAT: € 112.61 / $ 122.74
 

 

Kit with high-end crossover no 2

The kit with high-end crossover contains four Mundorf copper foil coils and in series to the loudspeakers Mundorf capacitors of high quality, like a silver/gold/oil capacitor in series to the tweeter.

  • Mundorf MCAP EVO Oil 4.7 μF / 450 V
  • ClarityCap PWA capacitor 4.7 μF / 160 Vdc
  • electrolytic capacitor, unetched, 150uF/50 Vdc (68uF and 82uF in parallel)
  • electrolytic capacitor, unetched, 15uF / 70 Vdc
  • 2x 0.5 mm air core coil, 4.7 mH/3.777 0hm
  • Mundorf baked varnish air core coil BL71, 0.33 mH/0.48 Ohm
  • Mundorf baked varnish air core coil BL100, 1.8 mH/0.70 Ohm
  • Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Kit with high-end-crossover without cabinet, price per speaker (8 Ohm) EUR 183,00 excl. VAT: € 153.78 / $ 167.62
 

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).

  • electrolytic capacitor, etched, 22 μF/100 Vdc
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)
  • Metal-oxide resistor, 10W 15 Ohm (brown-green-black)


Price per impedance correction for one speaker, to be mounted on a small wooden board.   EUR 10,70 excl. VAT: € 8.99 / $ 9.80

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.. str-RA140, price per unit: EUR 4,20 excl. VAT: € 3.53 / $ 3.85
We recommend one or two boards per kit (two or four boards for a speaker pair)
 

Home   Hobby HiFi Overview