Accutop 36 dB   Shelf speaker as in K+T 5/2020

Technical data
  • impedance: 6 Ohm
  • sensivity (2,83V/1m): 82 dB
  • size (HxWxD): 390 x 220 x 350 mm
  • frequency range (-8dB): 38 - 40000 Hz
  • crossover frequency(s): 1700 Hz
  • speaker type: passive radiator

Accutop 36 dB is a version of the Accutop speaker with a 6th order crossover (36 dB per octave).

Accutop 36 dB is a loudspeaker with drivers of Audaphon, Accuton and Wavecor. Passive radiators provide deep bass.

The kit is delivered with the following drivers:
- a Audaphon APR 1.0 ribbon-tweeter
- a Accuton C168-6-890 woofer with huge voice coil
- two large passive membranes on the back of the loudspeaker

The loudspeaker has been developed by Marek Held, Dennis Frank and Daniel Gattig.

The crossover consists of:
- a 6rd order high-pass filter (36 dB per octave slope) for the tweeter.
- a 6rd order low-pass filter (36 dB per octave slope) for the 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 low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,3% above 300 Hz and doesn't exceed 0,5% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Accuton C168-6-890 mids/woofer, 4D concept driver, one unit
  • 2x Wavecor PR182BD02 Passive Radiator, die cast
  • Audaphon Aluminium Ribbon Tweeter APR 1.0
  • 1,5x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Female banana jacks, red and black
  • 3x Allen wood screws, black, 4x25 mm, 8 pieces
  • Plan for DIY kit

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

  • 4x Jantzen Cross Cap MKP capacitor 400V
  • Jantzen Z-standard MKP capacitor 400V
  • 2x Jantzen Z-standard MKP capacitor 400V
  • Mundorf air core coil L140
  • 2x 1.3 mm air core coil
  • 5x 0.7 mm air core coil
  • 3x Metal-oxide resistor, 10W

Kit without cabinet, price per speaker   EUR 1888,00 excl. VAT: € 1586.55 / $ 1681.75

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 Audaphon APR 1.0 are of type polypropylen (MKP) Clarity Cap ESA.

  • ClarityCap ESA capacitor 630 Vdc
  • 2x ClarityCap ESA capacitor 630 Vdc
  • 4x Audaphon MKP CAP Superior 400 Vdc
  • 5x Mundorf baked varnish air core coil BL71
  • 3x Mundorf baked varnish air core coil BL140
  • 3x Metal-oxide resistor, 10W

Kit with high-end-crossover without cabinet, price per speaker   EUR 2016,00 excl. VAT: € 1694.12 / $ 1795.76

Kit with high-end crossover 2

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 Audaphon APR 1.0 are of type polypropylen (MKP) Mundorf MCAP EVO Silber Gold Öl.

  • 3x Mundorf MCAP EVO 450 V
  • Mundorf MCAP EVO Oil 450 V
  • Mundorf MCAP EVO Silver Gold Öl 450 V
  • 2x Mundorf MCAP EVO Silver Gold Öl 450 V
  • 2x Mundorf copper foil coil CFC16
  • Mundorf copper foil coil CFC14
  • 5x Mundorf baked varnish air core coil BL71
  • 3x Metal-oxide resistor, 10W

Kit with high-end-crossover without cabinet, price per speaker   EUR 2348,00 excl. VAT: € 1973.11 / $ 2091.50

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 11,80 excl. VAT: € 9.92 / $ 10.51
We recommend one board per kit (2 boards per speaker pair)

Measurements

measurmentsMeasurements on this speaker

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