Disub 302 A-409   Subwoofer as in Hobby Hifi 4/2018

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 85 dB
  • size (HxWxD): 370 x 486 x 412 mm
  • frequency range (-8dB): 23 - Hz
  • crossover frequency(s): Hz
  • speaker type: dipol

Disub 302 A-409 is a versatile subwoofer which complements the rest of the loudspeakers with a powerful and deep bass.

Disub 302 A-409 is a dipole loudspeaker with drivers of Monacor .

It is available in 3 versions:
- as mono subwoofer (with one channel)
- as stereo subwoofer (with two input channels)
- as mono subwoofer with amplifier Reckhorn A-409

The kit is delivered with two Monacor SP-12A/32PA subwoofer

The loudspeaker has been developed by Bernd Timmermanns.

The crossover consists of:
a wave trap

The frequency response of this speaker is nearly linear.

The decay spectrum is nearly perfect.

Our kit consists of

  • 2x Monacor SP12A/302PA, mid/bass
  • Reckhorn Subwoofer Amplifier A-409
  • PE sealing tape, 5x2 mm, 7.5 m
  • Binding Post PK31, gold plated (one pair, red and black)
  • 2m Speaker cable 2x2.5 mm2, transparent
  • 2x Pan screws 4x20 black, cross recess, 8 pieces

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

  • electrolytic capacitor, unetched, 68uF / 50 Vdc
  • Mundorf bs140 core coil 6.8mH/0.3Ohm
  • ceramic resistor 15 Ohm/20 Watt

Kit without cabinet, price per speaker   - not available

For the loudspeaker is additionally required: 1 piece of threaded bar M10 x 1000 mm, 8 pieces of counter sunk screw DIN 7991 M10 x 120 mm, 8 pieces of screw socket M10 x 40 mm.

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 capacitors are of type polypropylen (MKP) Mundorf Evo Öl 350 V.

Kit with high-end-crossover without cabinet, price per speaker   - not available

For the loudspeaker is additionally required: 1 piece of threaded bar M10 x 1000 mm, 8 pieces of counter sunk screw DIN 7991 M10 x 120 mm, 8 pieces of screw socket M10 x 40 mm.

universal PCB

If you prefer to mount the crossover components on a 159 x 127 mm universal PCB instead on wood:
Universal PCB RA160, order no.. str-RA160, price per unit:   EUR 5,90 excl. VAT: € 4.96 / $ 5.26
We recommend one board per kit (two boards for a speaker pair)


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