Wavesat 118/13   Shelf speaker as in Hobby Hifi 3/2015

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 82 dB
  • size (HxWxD): 250 x 150 x 220 mm
  • frequency range (-8dB): 70 - 40000 Hz
  • crossover frequency(s): 4500 Hz
  • speaker type: closed box

The Wavesat 118/13 is a compact loudspeaker with extremely well-behaved sound dispersion and other very good sonic properties at a low price. Bernd Timmermanns has developed this closed speaker. The Wavesat 118/13 is home to a 13 mm Wavecor dome, the TW013WA01, and the mid-bass unit WF118WA06.

We warmly recommend this loudspeaker.

Its crossover consists of a low-pass and a high-pass branch each of second order, i.e. with a slope of 12 dB per octave.

We see a very even on-axis frequency response from 100 Hz to 20,000 Hz. The decay spectrum (waterfall diagram over frequency) is exemplary, free of any disturbing resonance above 2000 Hz. At 90 dB and 1 m, non-linear distortions remain below 0.4 % almost everywhere above 1000 Hz.

We recommend a subwoofer like Little Roy with passive crossover (100 Hz cut-off frequency).

Our kit consists of

  • Wavecor silk dome tweeter TW013WA01, 4 Ohm
  • Wavecor Mid/Woofer WF118WA06 glass fiber, 8 Ohm
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 2m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3x17 black, cross recess, 4 pieces
  • Pan screws 4x20 black, cross recess, 4 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a piece of wood
  • Audaphon MKP CAP Superior 12 uF / 400 Vdc
  • Mundorf MCAP EVO 3.3 uF / 450 V
  • Mundorf MCAP EVO 5.6 uF / 450 V
  • 0.5 mm air core coil, 0.22 mH/0.59 0hm
  • 0.5 mm air core coil, 3.3 mH/3.13 0hm
  • 1.0 mm air core coil, 0.82 mH/0.44 Ohm
  • Metal-oxide resistor, 5W 1.5 Ohm (brown-green-gold)
  • Metal-oxide resistor, 5W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 5W 22 Ohm (red-red-black)

Kit without cabinet, price per speaker   EUR 159,00 excl. VAT: € 133.61 / $ 154.99

Kit with high-end crossover

The high-end kit contains Mundorf MCAP polyethylen foil capacitors. The coils are baked varnish coils for diminishing the microphonics effect. Current flowing through the coil creates a magnetic field which on itself sets the reel of wire in motion. That motion induces a voltage in the coil which adds itself to the original signal.

  • Mundorf MCAP EVO 12 uF / 450 V
  • Mundorf MCAP EVO Oil 3.3 uF / 450 V
  • Mundorf MCAP EVO Oil 5.6 uF / 450 V
  • Mundorf baked varnish air core coil BL71, 0.22 mH/0.34 Ohm
  • Mundorf baked varnish air core coil BL71, 3.3 mH/1.75 Ohm
  • Mundorf baked varnish air core coil BL100, 0.82 mH/0.45 Ohm
  • Metal-oxide resistor, 5W 1.5 Ohm (brown-green-gold)
  • Metal-oxide resistor, 5W 8.2 Ohm (grey-red-gold)
  • Metal-oxide resistor, 5W 22 Ohm (red-red-black)

Kit with high-end-crossover without cabinet, price per speaker   EUR 186,00 excl. VAT: € 156.30 / $ 181.31

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).


Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 13,30 excl. VAT: € 11.18 / $ 12.96

universal PCB

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 / $ 4.97
We recommend one board per standard kit (two boards for a speaker pair)
We recommend two boards per hig-end kit (four boards for a speaker pair)

high-pass filter

If you use WaveSat 118/13 together with a subwoofer, an additional high-pass filter should be applied.


Price per high-pass filter for one speaker, to be mounted on a small wooden board.     EUR 18,40 excl. VAT: € 15.46 / $ 17.94

high-end high-pass filter

If you use WaveSat 118/13 together with a subwoofer, an additional high-pass filter should be applied.


Price per high-pass filter for one speaker, to be mounted on a small wooden board.     EUR 26,80 excl. VAT: € 22.52 / $ 26.12

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