Visamon 170RD-HP   Shelf speaker as in Hobby Hifi 5/2016

Technical data
  • impedance: 6 Ohm
  • sensivity (2,83V/1m): 84 dB
  • size (HxWxD): 350 x 200 x 300 mm
  • frequency range (-8dB): 60 - 40000 Hz
  • crossover frequency(s): 1800 Hz
  • speaker type: closed box

VisaMon 170RD-HP is a small speaker that employs a woofer Visaton AL170 and a tweeter Scan-Speak R2604-833000.

VisaMon 170RD-HP has been developed by Bernd Timmermanns.

The speaker is built in a closed cabinet with a high-pass filter with different crossover frequencies to harmonize perfectly with a subwoofer.

The crossover consists of a 2nd order high-pass filter (12 dB per octave slope) for the tweeter. The woofer is connected to a 2nd order high and low-pass filter (12 dB per octave slope) with a parallel RCL to smoothen the frequency response.

Between 200 Hz and 40 kHz, the frequency response of this loudspeaker is linear on axis. The decay spectrum is perfect. At low volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0.8% above 200 Hz.

Visamon 170RD-HP is available with different high-pass filters

We deliver Visamon with different cut-off frequencies to adopt it to a subwoofer. If you don't want to use a subwoofer, we recommend the the DIY kit Visamon 170.

Our 70 Hz kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • ClarityCap PWA capacitor 47 uF / 160 Vdc
  • Audaphon MKP CAP Superior 0.47 uF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • Mundorf, electrolytic capacitor, etched, 220 uF/63 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf air core coil L140, 2.2 mH/0.46 Ohm
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 256,00 excl. VAT: € 215.13 / $ 243.09

Our 77 Hz kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • ClarityCap PWA capacitor 22 uF / 160 Vdc
  • Audaphon MKP CAP Superior 0.47 uF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • 2x Mundorf, electrolytic capacitor, etched, 100 uF/100 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf air core coil L140, 2.2 mH/0.46 Ohm
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 0.56 Ohm 5% (green-blue-silver)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 253,00 excl. VAT: € 212.61 / $ 240.24

Our 85 Hz kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • ClarityCap PWA capacitor 33 uF / 160 Vdc
  • Audaphon MKP CAP Superior 0.47 uF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • Mundorf, electrolytic capacitor, etched, 150 uF/63 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf air core coil L140, 2.2 mH/0.46 Ohm
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • 0.7 mm air core coil, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 250,00 excl. VAT: € 210.08 / $ 237.39

Our 95 Hz kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • ClarityCap PWA capacitor 47 uF / 160 Vdc
  • Audaphon MKP CAP Superior 0.47 uF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • Mundorf, electrolytic capacitor, etched, 100 uF/100 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf air core coil L140, 2.2 mH/0.46 Ohm
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • Mundorf H core coil H50, 4.7 mH/1.0 0hm
  • Metal-oxide resistor, 10W 0.56 Ohm 5% (green-blue-silver)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 253,00 excl. VAT: € 212.61 / $ 240.24

Our 100 Hz kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • ClarityCap PWA capacitor 22 uF / 160 Vdc
  • Audaphon MKP CAP Superior 0.47 uF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 uF / 400 Vdc
  • Mundorf, electrolytic capacitor, etched, 100 uF/100 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf air core coil L140, 2.2 mH/0.46 Ohm
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • Mundorf H core coil H50, 4.7 mH/1.0 0hm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 247,00 excl. VAT: € 207.56 / $ 234.55

Kit with high-end crossover

The high-end kit comes with Mundorf EVO silver gold oil capacitors for the tweeter. The coil for the woofer is a CFC 14 foil coil. All other inductances are baked varnished coils. Both 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.

Our 70 Hz high-end kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • Mundorf MCAP EVO 68 uF / 350 V
  • Mundorf MCAP EVO Silver Gold Öl 0.47 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 uF / 450 V
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 100uF / 50 Vdc
  • Mundorf copper foil coil CFC14-2.2mH/0.41Ohm
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 424,00 excl. VAT: € 356.30 / $ 402.62

Our 77 Hz high-end kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • Mundorf MCAP EVO 56 uF / 350 V
  • Mundorf MCAP EVO Silver Gold Öl 0.47 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 uF / 450 V
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • 2x Mundorf, electrolytic capacitor, unetched, 82uF / 50 Vdc
  • Mundorf copper foil coil CFC14-2.2mH/0.41Ohm
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 0.56 Ohm 5% (green-blue-silver)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 416,00 excl. VAT: € 349.58 / $ 395.03

Our 85 Hz high-end kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • Mundorf MCAP EVO 82 uF / 350 V
  • Mundorf MCAP EVO Silver Gold Öl 0.47 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 uF / 450 V
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf, electrolytic capacitor, unetched, 100uF / 50 Vdc
  • Mundorf copper foil coil CFC14-2.2mH/0.41Ohm
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf baked varnish air core coil BL71, 4.7 mH/2.19 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 420,00 excl. VAT: € 352.94 / $ 398.82

Our 95 Hz high-end kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • Mundorf MCAP EVO 47 uF / 350 V
  • Mundorf MCAP EVO Silver Gold Öl 0.47 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 uF / 450 V
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf, electrolytic capacitor, unetched, 100uF / 50 Vdc
  • Mundorf copper foil coil CFC14-2.2mH/0.41Ohm
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf H core baked varnish coil BH71, 4.7 mH/0.55 0hm
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 407,00 excl. VAT: € 342.02 / $ 386.48

Our 100 Hz high-end kit consists of

  • ScanSpeak ring radiator R2604/833000
  • Visaton woofer AL 170, 8 Ohm
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x2.5 mm2, transparent
  • 1,5x Pan screws 4x20 black, 8 pieces
  • Plan for DIY kit

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

  • Mundorf MCAP EVO 22 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 0.47 uF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 uF / 450 V
  • 2x Mundorf, electrolytic capacitor, unetched, 6.8 uF / 70 Vdc
  • Mundorf, electrolytic capacitor, unetched, 100uF / 50 Vdc
  • Mundorf copper foil coil CFC14-2.2mH/0.41Ohm
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf H core baked varnish coil BH71, 4.7 mH/0.55 0hm
  • Metal-oxide resistor, 10W 0.47 Ohm 5% (yellow-purple-silver)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 397,00 excl. VAT: € 333.61 / $ 376.98

universal PCBs

If you prefer to mount the crossover components on a 159 x 127 mm universal PCB instead on wood:
Universal PCB RA160, order no.. I-2766, price per unit:   EUR 5,10 excl. VAT: € 4.29 / $ 4.84
We recommend one board per kit (two boards for a speaker pair)


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