Chorda - as in Hobby HiFi 1/2002

This floorstanding speaker is in all aspects designed with excellence in mind; it starts with the cabinet: a bracing panel has been put in-between baffle and rear wall, with struts against both walls. This is major step in achieving the goal of having a sound-dead cabinet. The Alcone loudspeakers are constructed the same way, they also feature ceramic tweeters, the Chorda, however, is in a totally different price range. Technical data:
- size (HxWxD): 100x26x45 cm
- impedance: 6 Ohm
- crossover frequency: 1150 Hz
- sensitivity: 85 dB (2.83V/1m)
- frequency range (-3dB): 28-22000Hz

Chorda

Our kit contains (with high-end crossover components):
- the crossover components to be mounted on wood:
- copper foil coil cfc12-2.2 mH (0.27 Ohm)
- 3.3 mH air core coil / 1mm *)Standard
- 0.22 mH air core coil, baked varnish (I-608)
- 2.2 mH air core coil, baked varnish, Mundorf 1mm
- 0.39 mH air core coil, baked varnish (I-614)
- 27 mH core coil (I-986)
- 1.2 mH air core coil / 1mm *)Standard
- 0.33 mH air core coil, baked varnish (I-612)
- 2 x capacitors MKP 15 uF, Mundorf 400V
- 2 x capacitors MKP 8.2 uF, Mundorf 400V
- in front of tweeter: Mundorf Supreme CAP 8.2 uF
- 470 uF ELCO etched, Mundorf
- 33 uF Mundorf capacitor MKP/400V
- 10 uF Mundorf capacitor MKP/400V
- 2.2 uF Mundorf capacitor MKP/400V
- MOX10 resistor 1.5 Ohm (as R4, brown-green-gold)
- MOX10 resistor 6.8 Ohm (blue-grey-gold)
- MOX10 resistor 10 Ohm (brown-black-black)
- MOX10 resistor 12 Ohm (brown-red-black)
- MOX4 resistor 8.2 Ohm (grey-red-gold)
- MOX4 resistor 15 Ohm (brown-green-black)
- MOX4 resistor 6.8 Ohm (blue-grey-gold)


- the Thiel C244 tweeter
- the C2220-T6 bass driver
- bass reflex tube HP 100
- bass reflex tube BR 100 (TR 100 discontinued)
- 3 pairs binding post
- foam sealing tape

- 3 mats NF10 felt
- 3 packs polyester fleece
- 1/2 pack Visaton sheep's wool damping material
- 1 metre cable 2x4 mm2
- 2 metre cable 2x1.5 mm2
- 10 x Allen screws 4x25
- the building instruction

*) some components have been modified: those for tweeter and bass driver have been replaced by the best available components, since here a top quality is absolutely mandatory:
a) Mundorf CFC coil,
b) the lowest-loss capacitor we know of
on the other hand, where resistors are in series and quality is of no importance, we did without baked varnish coils (baked varnish coils are available against an extra charge of 2.50 EUR)

Price per Chorda/high-end kit: - not available

requested by many customers: Chorda as above, but with crossover lacking impedance correction:
- the crossover components to be mounted on wood:
- copper foil coil cfc12-2.2 mH (0.27 Ohm)
- 3.3 mH air core coil / 1mm *)Standard
- 0.22 mH air core coil, baked varnish (I-608)
- 2.2 mH air core coil, baked varnish, Mundorf 1mm
- 0.39 mH air core coil, baked varnish (I-614)
- 2 x capacitors MKP 15 uF, Mundorf 400V
- 2 x capacitors MKP 8.2 uF, Mundorf 400V
- in front of tweeter: Mundorf Supreme CAP 8.2 uF
- MOX10 resistor 6.8 Ohm (blue-grey-gold)
- MOX4 resistor 8.2 Ohm (grey-red-gold)
- MOX4 resistor 15 Ohm (brown-green-black)

Price per Chorda/standard kit: - not available

Home   Hobby HiFi Overview