sLAB12   Floorstanding as in K+T 1/2018

Technical data
  • impedance: 6 Ohm
  • sensivity (2,83V/1m): 86 dB
  • size (HxWxD): 990 x 440 x 440 mm
  • frequency range (-8dB): 30 - 20000 Hz
  • crossover frequency(s): 1200 Hz
  • speaker type: bass reflex

sLAB12 is a two way floorstanding speaker with professional drivers (PA).

sLAB12 is a bass-reflex cabinet loudspeaker with drivers of Stereo Lab/Beyma and Beyma.

The kit is delivered with the following drivers:
- a Stereo Lab SL400 Beyma CD-1014Fe horn with driver
- a Beyma 12 LX 60-V2 woofer

The loudspeaker has been developed by Oliver Martin.

The crossover consists of:
- a 3rd order high-pass filter (18 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 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 0.4% above 400 Hz and doesn't exceed 0.9% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Stereo Lab Horn SL-250-2
  • Beyma CD 1014/FE, 1 inch driver, 70W
  • Beyma woofer 12 LX 60 V2, 700 Watt
  • 4x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0.5x Foam N25-30, 100 x 50 cm, black
  • 2x Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x1.5 mm2, transparent
  • Allen wood screws, black, 5x30 mm, 8 pieces
  • Plan for DIY kit

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

  • 2x Audaphon MKP CAP Superior 1.0 uF / 400 Vdc
  • Audaphon MKP CAP Superior 2.7 uF / 400 Vdc
  • Audaphon MKT CAP 10 uF / 160 Vdc
  • Audaphon MKT CAP 33 uF / 160 Vdc
  • Mundorf, electrolytic capacitor, etched, 330 uF/63 Vdc
  • Mundorf air core coil L140, 3.3 mH/0.58 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • Mundorf H core coil H71, 15 mH/1.15 0hm
  • Monacor transformer coil LSI-100T, 10mH/0.19 Ohm
  • ceramic resistor 1.0 Ohm/20 Watt
  • ceramic resistor 10 Ohm/20 Watt
  • Metal-oxide resistor, 10W 2.2 Ohm (red-red-gold)

Kit without cabinet, price per speaker   - not available

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 fullrange driver are of type polypropylen (MKP) Clarity-Cap CSA 630 V and PWA 160V.

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

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 11,70 excl. VAT: € 9.83 / $ 10.91
We recommend one board per kit (2 boards per speaker pair)

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