Elara   Floorstanding as in K+T 2/2020

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 90 dB
  • size (HxWxD): 1000 x 320 x 366 mm
  • frequency range (-8dB): 30 - 19000 Hz
  • crossover frequency(s): 1800 Hz
  • speaker type: bass reflex

Elara is a two way floorstanding speaker.

Elara is a bass-reflex cabinet loudspeaker with drivers of Mundorf and Visaton.

The kit is delivered with the following drivers:
- a Mundorf ProAMT 88PP27R-8-462-H air motion transformer (ribbon-tweeter)
- a Visaton W 250 S, 4 Ohm woofer

The loudspeaker has been developed by Thomas Schmidt and Holger Barske.

The crossover consists of:
- a 2nd order high-pass filter (12 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 0,9% above 200 Hz and doesn't exceed 1,2% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • ProAMT 88PP27R-8-462-H
  • Visaton W250 S, 4 Ohm
  • Bass reflex tube HP70 XL, 70x220 mm, black
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 1,5x Damping Sonofil 100 x 35 cm for 20 litres
  • 0,5x Foam N25, 100x50x4 cm, black
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x1.5 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 2.7 μF; / 400 Vdc
  • Audaphon MKP CAP Superior 4.7 μF; / 400 Vdc
  • Audaphon MKP CAP Superior 10 μF; / 400 Vdc
  • Audaphon MKT CAP 15 μF; / 160 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 33μF / 100 Vdc
  • Mundorf air core coil L140, 1.0 mH/0.30 Ohm
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • ceramic resistor 6.8 Ohm/20 Watt
  • Metal-oxide resistor, 10W 3.3 Ohm (orange-orange-gold)
  • 2x Metal-oxide resistor, 10W 5.6 Ohm (green-blue-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 Mundorf ProAMT 88PP27R-8-462-H are of type polypropylen (MKP) Clarity-Cap CSA.

  • ClarityCap CSA capacitor 10 μF; / 630 Vdc
  • ClarityCap CSA capacitor 4.7 μF; / 250 Vdc
  • Audaphon MKP CAP Superior 2.7 μF; / 400 Vdc
  • Audaphon MKT CAP 15 μF; / 160 Vdc
  • Audaphon MKT CAP 33 μF; / 160 Vdc
  • Mundorf baked varnish air core coil BL71, 0.33 mH/0.48 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf baked varnish air core coil BL140, 1.0 mH/0.30 Ohm
  • ceramic resistor 6.8 Ohm/20 Watt
  • Metal-oxide resistor, 10W 3.3 Ohm (orange-orange-gold)
  • 2x Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)

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

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, 0.10 mH/0.27 Ohm
  • ceramic resistor 12 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 13,94 excl. VAT: € 12.02 / $ 14.18

universal PCB

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,58 excl. VAT: € 3.95 / $ 4.66
We recommend one board per kit (2 boards per speaker pair)


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