Soundlab   Floorstanding as in K+T 2/2023

Technical data
  • impedance: 3 Ohm
  • sensivity (2,83V/1m): 79 dB
  • size (HxWxD): 810 x 115 x 250 mm
  • frequency range (-8dB): 33 - 28000 Hz
  • crossover frequency(s): Hz
  • speaker type: bass reflex

Soundlab is a three way floorstanding speaker.

Soundlab is a bass-reflex cabinet loudspeaker with drivers of Omnes Audio and Tang Band.

The kit is delivered with the following drivers:
- a Omnes Audio T25 H tweeter
- a Tang Band W3-315 mids driver
- a Tang Band W5-1138 SMF woofer

The loudspeaker has been developed by Markus Kluge and Michael Merkl.

The crossover consists of:
- a 2nd order high-pass filter (12 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 2nd order low-pass filter (12 dB per octave slope) for the mids-woofer.
- a 3rd order low-pass filter (18 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear.

The decay spectrum is nearly perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,7% above 300 Hz and doesn't exceed 1,1% at 95 dB at 1 m between 300 and 15000 Hz.

An excerpt from the Klang+Ton review (Translation of the author into English)

Conclusion of the magazine Klang+Ton:

Our kit consists of

  • Monacor transformer coil LSI-33T, 3.3 mH/0.13 Ohm
  • Omnes Audio T25 H
  • Tang Band W3-315, 9 cm full range
  • Tang Band W5-1138 SMF
  • 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)
  • 3m Speaker cable 2x1.5 mm2, transparent
  • 1,5x 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 5.6 μF / 400 Vdc
  • Audaphon MKP CAP Superior 10 μF / 400 Vdc
  • Audaphon MKT CAP 3.3 μF / 160 Vdc
  • Audaphon MKT CAP 4.7 μF / 160 Vdc
  • Audaphon MKT CAP 8.2 μF / 160 Vdc
  • Audaphon MKT CAP 10 μF / 160 Vdc
  • Audaphon MKT CAP 22 μF / 160 Vdc
  • Audaphon MKT CAP 68 μF / 160 Vdc
  • JB, electrolytic capacitor, bipolar, 100 μF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 220 μF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 470 μF/50 Vdc
  • 1.0 mm air core coil, 1.5 mH/0.63 Ohm
  • 1.0 mm air core coil, 2.7 mH/0.93 Ohm
  • 0.7 mm air core coil, 0.18 mH/0.36 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • 0.7 mm air core coil, 0.82 mH/0.89 Ohm
  • 0.7 mm air core coil, 2.7 mH/1.53 Ohm
  • Mundorf H core coil H71, 8.2 mH/0.8 0hm
  • ceramic resistor 2.2 Ohm/20 Watt
  • ceramic resistor 15 Ohm/20 Watt
  • Metal-oxide resistor, 10W 0.68 Ohm 5% (blue-grey-silver)
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)
  • Metal-oxide resistor, 10W 18 Ohm (brown-grey-black)

Kit without cabinet, price per speaker   EUR 301,00 excl. VAT: € 252.94 / $ 273.18

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 Omnes Audio T25 H are of type polypropylen (MKP) Clarity-Cap ESA 630 V.

  • ClarityCap ESA capacitor 5.6 μF / 630 Vdc
  • ClarityCap ESA capacitor 10 μF / 630 Vdc
  • ClarityCap PWA capacitor 68 μF / 160 Vdc
  • Audaphon MKP CAP Superior 3.3 μF / 400 Vdc
  • Audaphon MKP CAP Superior 12 μF / 400 Vdc
  • Audaphon MKP CAP Superior 15 μF / 400 Vdc
  • Audaphon MKP CAP Superior 18 μF / 400 Vdc
  • JB, electrolytic capacitor, bipolar, 100 μF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 220 μF/50 Vdc
  • JB, electrolytic capacitor, bipolar, 470 μF/50 Vdc
  • Mundorf baked varnish air core coil BL71, 0.18 mH/0.34 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
  • Mundorf baked varnish air core coil BL71, 0.82 mH/0.89 Ohm
  • Mundorf baked varnish air core coil BL71, 2.7 mH/1.53 Ohm
  • Mundorf baked varnish air core coil BL100, 1.5 mH/0.62 Ohm
  • Mundorf baked varnish air core coil BL100, 2.7 mH/0.9 Ohm
  • Mundorf H core baked varnish coil BH71, 8.2 mH/0.8 0hm
  • ceramic resistor 2.2 Ohm/20 Watt
  • ceramic resistor 15 Ohm/20 Watt
  • Metal-oxide resistor, 10W 0.68 Ohm 5% (blue-grey-silver)
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)
  • Metal-oxide resistor, 10W 18 Ohm (brown-grey-black)

Kit with high-end-crossover without cabinet, price per speaker   on request

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 MKT CAP 33 μF / 160 Vdc
  • 0.7 mm air core coil, 0.22 mH/0.34 Ohm
  • ceramic resistor 8.2 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 14,80 excl. VAT: € 12.44 / $ 13.43

universal PCB

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 220x155 mm, order no. I-8805002, price per unit:   EUR 11,80 excl. VAT: € 9.92 / $ 10.71
We recommend two boards per kit (four boards for a speaker pair)


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