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Descartes with Alcone and Seas drivers

Descartes was developed by Dennis Frank. His main goal was once again to create a big loudspeaker with crystal clear tops, clean bass and with a great three-dimensional ability.
Alcone Descartes

Descartes is a three way closed cabinet loudspeaker consisting of one Seas Noferro 650, two Alcone AC6.5 HE and two Alcone AC8 HE.

The Descartes shows the following characteristics:

  • very clean bass (although not that deep)
  • supreme bass dynamics
  • extremely well balanced, spacious sound
  • high transparency

Technical data:

  • dimensions (HxWxD): 1345 x 258 x 630 mm
  • power handling: 180 / 250 W continuous/programme
  • frequency response: 39-25 000 Hz (-8dB)
  • crossover frequencies: 550 and 2200 Hz
  • SPL: 93 dB (2,83V/1m)
  • Impedance: 4 Ohm
Alcone Descartes
Descartes Frequenzverlauf
on the left:
The Descartes shows an even frequency response, with a slight decline in bass ensuring a sound close to the original.
Seas Noferro 650
Alcone AC 6.5 HE
Alcone AC 8 HE
The Alcone Descartes consists of:
  • 1 x Seas Noferro 650 tweeter
  • 2 x Alcone AC 6.5 HE mid/bass, 8 Ohm
  • 2 x Alcone AC 8 HE bass drivers, 8 Ohm
  • 1 x bi-wiring terminals with gold-plated brass binding posts
  • 6 x bags damping material
  • 1 x crossover kit - see below
  • 1 x screw set
  • foam sealing tape for drivers
  • 7m cable for internal wiring 2x1,5 mm2)
  • description and building instruction

The crossover consists of:

  • 2,7 mH Mundorf H-core coil
  • 0,82 mH air core coil, 1,4 mm
  • 3,9 mH core coil
  • 0,18 mH air core coil 1 mm
  • 0,22 mH baked varnish coil 0,9 mm
  • MKT capacitor 100 uF
  • MKT capacitor 22 uF
  • MKT capacitor 3,9 uF
  • Mundorf MKP capacitor 22 uF / 400 V
  • Mundorf MKP capacitor 15 uF / 400 V
  • Mundorf MKP capacitor 10 uF / 400 V
  • Mundorf MKP capacitor 4,7 uF / 400 V
  • resistor 0,68 Ohm, 20 Watt
  • resistor 1,0 Ohm, 20 Watt
  • resistor 0,82 Ohm, 10 Watt
  • resistor 0,82 Ohm, 5 Watt
Price per unit, without cabinet on request

Should you prefer to mount the crossover components on a universal PCB:
EUR 11,70 excl. VAT: € 9.83 / $ 11.41

Building instructions of Descartes
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