Adhara   Floorstanding as in K+T 6/2016

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 83 dB
  • size (HxWxD): 1040 x 190 x 269 mm
  • frequency range (-8dB): 30 - 26000 Hz
  • crossover frequency(s): 2000 Hz
  • speaker type: bass reflex
The Adhara is an high-end 2 way floorstanding speaker with high quality chassis. The kit is delivered with air motion transformer Audaphon AMT-1i and 
with Wavecor WF182CU13 of high quality as midwoofer for the bass range.

The Adhara is an high-end 2 way floorstanding speaker with high quality chassis. The kit is delivered with air motion transformer Audaphon AMT-1i and with Wavecor WF182CU13 of high quality as midwoofer for the bass range.

Adhara has been developed by Daniel Gattig and Dennis Frank.

The crossover consists of a 3rd order high-pass filter (18 dB per octave slope) for the tweeter, a RCL circuit in parallel is smoothing the frequency response between 3 kHz and 8 kHz and a parallel RCL circuit in series to the loudspeaker is smoothing the frequency response between 15 kHz and 25 kHz. The woofers are connected to a 3rd order low pass filter (18 dB per octave slope). A RCL circuit in parallel to the woofer is smoothing the frequency response between 600 Hz and 1,5 kHz.

The frequency response of this speaker is outstanding linear. The decay spectrum is nearly perfect. At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are lower than 0.4% above 300 Hz and doesn't exceed 1% at 95 dB at 1 m .

Our kit consists of

  • Audaphon AMT-1i
  • WF182CU13, Wavecor Mid/Woofer, 8 Ohm, paper cone, BD, phase plug
  • Bass reflex tube HP70 XL, 70x220 mm, black
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 1,5x 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
  • Allen wood screws, black, 4x25 mm, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 0.68 uF / 400 Vdc
  • Audaphon MKP CAP Superior 4.7 uF / 400 Vdc
  • Audaphon MKP CAP Superior 5.6 uF / 400 Vdc
  • Audaphon MKP CAP Superior 22 uF / 400 Vdc
  • Audaphon MKT CAP 2.2 uF / 160 Vdc
  • Audaphon MKT CAP 10 uF / 160 Vdc
  • Audaphon MKT CAP 15 uF / 160 Vdc
  • Mundorf baked varnish air core coil BL71, 0.015 mH
  • Mundorf air core coil L140, 0.47 mH/0.19 Ohm
  • 1.3 mm air core coil, 1.8 mH/0.45 Ohm
  • 0.7 mm air core coil, 0.22 mH/0.39 Ohm
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • 0.7 mm air core coil, 3.3 mH/1.75 Ohm
  • 2x Metal-oxide resistor, 10W 10 Ohm (brown-black-black)
  • 2x Metal-oxide resistor, 10W 12 Ohm (brown-red-black)
  • Metal-oxide resistor, 5W 0.22 Ohm 5% (red-red-silver)
  • Metal-oxide resistor, 5W 12 Ohm (brown-red-black)

Kit without cabinet, price per speaker   EUR 799,00 excl. VAT: € 671.43 / $ 758.71

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils 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. All capacitors are of type polypropylen (MKP) and in series to the tweeter Clarity-Cap ESA 250 V are employed.

Kit with high-end-crossover without cabinet, price per speaker   EUR 839,00 excl. VAT: € 705.04 / $ 796.70

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 13,20 excl. VAT: € 11.09 / $ 12.53

universal PCBs

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,70 excl. VAT: € 3.95 / $ 4.46
We recommend two boards per kit (4 boards per speaker pair)

The frequency response of this speaker


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