ScanBySide 2   Floorstanding as in Hobby Hifi 4/2020

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 85 dB
  • size (HxWxD): 1075 x 230 x 380 mm
  • frequency range (-8dB): 27 - 40000 Hz
  • crossover frequency(s): 150, 2500 Hz
  • speaker type: closed box

ScanBySide 2 is a three way floorstanding speaker. ScanBySide II provides a flat frequency response from below 30 to above 40 000 Hz, low distortion and excellent decay spectrum.

ScanBySide 2 is a closed-cabinet loudspeaker with drivers of SB Acoustics and Scan Speak.

The kit is delivered with the following drivers:
- a SB Acoustics SB29BAC-C000-4 tweeter
- a SB Acoustics SB17NBAC35-4 mids driver
- a Scan Speak 26W/4534G00 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 band pass consisting of a 2nd order high pass filter (12 dB per octave slope) and a 3rd order low-pass filter (18 dB per octave slope) for the mids-woofer.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is perfectly linear.

The decay spectrum as shown in the waterfall diagram is exemplary, free of any disturbing resonance.

At medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0,3% above 200 Hz.

Our kit consists of

  • SB Acoustics beryllium dome tweeter SB29BAC-C000-4
  • SB Acoustics midwoofer SB17NBAC35-4, black aluminium cone
  • ScanSpeak Woofer 26W-4534G00
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x Damping 30 1100 x 470 mm, adhesive
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 1,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x2.5 mm2, transparent
  • 2x 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 3.9 μF; / 400 Vdc
  • Audaphon MKP CAP Superior 12 μF; / 400 Vdc
  • JB, electrolytic capacitor, bipolar, 100 uF/50 Vdc
  • 2x JB, electrolytic capacitor, bipolar, 220 uF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 330 uF/50 Vdc
  • 2x JB, electrolytic capacitor, bipolar, 470 uF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 47 uF/100 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 8.2 μF; / 50 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 22μF / 50 Vdc
  • 0.7 mm air core coil, 0.56 mH/0.64 Ohm
  • 0.7 mm air core coil, 0.68 mH/0.71 Ohm
  • 0.7 mm air core coil, 0.82 mH/0.89 Ohm
  • 0.7 mm air core coil, 10 mH/3.85 Ohm
  • 0.7 mm air core coil, 18 mH/4,66 Ohm
  • Mundorf bs140 core coil 6.8mH/0.3Ohm
  • Mundorf H core coil H71, 3.3 mH/0.47 0hm
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 5W 0.47 Ohm 5% (yellow-purple-silver)
  • Metal-oxide resistor, 5W 3.3 Ohm (orange-orange-gold)
  • Metal-oxide resistor, 5W 27 Ohm (red-purple-black)

Kit without cabinet, price per speaker   EUR 618,02 excl. VAT: € 532.78 / $ 623.35

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 for the SB Acoustics SB29BAC-C000-4 are of type polypropylen Mundorf MCAP EVO Silver Gold Oil.

  • Mundorf MCAP EVO 22 μF; / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 2.2 μF; / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 3.9 μF; / 450 V
  • Mundorf MKP capacitor 10 μF; / 400 V
  • Audaphon MKP CAP Superior 8.2 μF; / 400 Vdc
  • 2x JB, electrolytic capacitor, bipolar, 220 uF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 330 uF/50 Vdc
  • 2x JB, electrolytic capacitor, bipolar, 470 uF/50 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 47μF / 100 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 100μF / 100 Vdc
  • Mundorf baked varnish air core coil BL71, 0.56 mH/0.64 Ohm
  • Mundorf baked varnish air core coil BL71, 0.68 mH/0.71 Ohm
  • Mundorf baked varnish air core coil BL71, 0.82 mH/0.89 Ohm
  • Mundorf baked varnish air core coil BL71, 10 mH/3.62 Ohm
  • Mundorf baked varnish air core coil BL71, 18 mH/4,66 Ohm
  • Mundorf bs140 core coil 6.8mH/0.3Ohm
  • Mundorf H core baked varnish coil BH71, 3.3 mH/0.47 0hm
  • Mresist Classic 5,6 Ohm / 10 Watt
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 5W 0.47 Ohm 5% (yellow-purple-silver)
  • Metal-oxide resistor, 5W 3.3 Ohm (orange-orange-gold)
  • Metal-oxide resistor, 5W 27 Ohm (red-purple-black)

Kit with high-end-crossover without cabinet, price per speaker   EUR 769,11 excl. VAT: € 663.03 / $ 775.74

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 MKP CAP Superior 3.3 μF; / 400 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 33μF / 100 Vdc
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • ceramic resistor 5.6 Ohm/20 Watt
  • Metal-oxide resistor, 10W 10 Ohm (brown-black-black)

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 14,76 excl. VAT: € 12.72 / $ 14.89

universal PCB

If you prefer to mount the crossover components on a 240 x 165 mm universal PCB instead on wood:
Universal PCB RA240, order no.. I-2767, price per unit:   EUR 7,41 excl. VAT: € 6.39 / $ 7.47
We recommend one board per kit (two boards for a speaker pair)


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