Audimax -TL 18.2 RB   Floorstanding as in Hobby Hifi 2/2020

Technical data
  • impedance: 12 Ohm
  • sensivity (2,83V/1m): 80 dB
  • size (HxWxD): 1050 x 220 x 350 mm
  • frequency range (-8dB): 26 - 40000 Hz
  • crossover frequency(s): 1800 Hz
  • speaker type: transmission line

Audimax-TL 18.2 RB is a two way floorstanding speaker.

Audimax-TL 18.2 RB is a transmission-line loudspeaker with drivers of Audaphon and Hobby-HiFi (Made by SEAS).

The kit is delivered with the following drivers:
- a Audaphon APR 1.0 ribbon-tweeter
- a Hobby-HiFi (Made by SEAS) 18MW12T midrange / bass driver

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 2nd order low-pass filter (12 dB per octave slope) for the mids-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 0,4% above 200 Hz.

Our kit consists of

  • Audaphon Aluminium Ribbon Tweeter APR 1.0
  • Hobby-HiFi woofer 18MW12T, produced by SEAS
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 1,5x Damping Sonofil 100 x 35 cm for 20 litres
  • 0,5x Audaphon Damping 10, 970 x 470 mm, adhesive
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 3m Speaker cable 2x2.5 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.

  • Mundorf MCAP EVO Oil 4.7 μF / 450 V
  • Mundorf MCAP EVO Oil 10 μF / 450 V
  • Audaphon MKP CAP Superior 0.47 μF / 400 Vdc
  • Audaphon MKP CAP Superior 1.5 μF / 400 Vdc
  • 2x Audaphon MKP CAP Superior 2.2 μF / 400 Vdc
  • Mundorf baked varnish air core coil BL71, 0.10 mH/0.23 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf baked varnish air core coil BL71, 0.56 mH/0.64 Ohm
  • Mundorf bs100 core coil 3.9mH/0.4Ohm
  • Metal-oxide resistor, 10W 1.0 Ohm (brown-black-gold)
  • Metal-oxide resistor, 10W 3.3 Ohm (orange-orange-gold)
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)
  • 2x Metal-oxide resistor, 10W 10 Ohm (brown-black-black)

Kit without cabinet, price per speaker   EUR 1354,00 excl. VAT: € 1137.82 / $ 1240.22

Kit with high-end crossover

The high-end kit is delivered with Mundorf Hepta coils. The capacitors for the Audaphon APR 1.0 are of type Mundorf Mcap Supreme EVO Oil.

Kit with high-end-crossover without cabinet, price per speaker   EUR 1677,00 excl. VAT: € 1409.24 / $ 1536.08

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 34,10 excl. VAT: € 28.66 / $ 31.23

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.. str-RA240, price per unit:   EUR 8,60 excl. VAT: € 7.23 / $ 7.88
We recommend one board per kit (two boards for a speaker pair)


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