Loire Top, Shelf speaker   as in K+T 1/2014

Technical data
- impedance: 6 Ohm
- sensivity (2,83V/1m): 83 dB
- size (HxWxD): 350 x 180 x 300 mm
- frequency range (-8dB): 45 - 40000 Hz
- crossover frequency(s): 1800 Hz
- speaker type: closed box

Loire Top stands for the upper part of the floorstanding Loire. Loire top contains a 30 mm dome Wavecor TW030WA10 with silk membrane and a 18 cm woofer Wavecor WF182BD12 with glass fibre fabric membrane.

The box is constructed as a closed box, which provides a very clean, dry bass. The housing consists of 6 plates, it is easy to build.

The crossover consists of a 3rd order high-pass filter (18 dB per octave slope) to control the silk dome tweeter and 2nd order low-pass filter for the control of the woofer. Parallel to tweeter and woofer still absorption circuits are arranged which correct the frequency characteristics without worsening the impulse accuracy.

The frequency response is quite flat, the non-linear distortions are absolutely low. This can be found in top-class speakers. The decay spectrum shows a small resonance at 500 Hz; apart from that it is without any fault.
 

  

Our kit consists of

  • Wavecor Mid/Woofer WF182BD12 glass fiber, die cast, 8 Ohm
  • Wavecor silk dome tweeter TW030WA10, 8 Ohm
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1,5m Speaker cable 2x1.5 mm2, transparent
  • Allen wood screws, black, 4X25MM, 12 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 0.22 uF / 400 Vdc
  • Audaphon MKP CAP Superior 1.0 uF / 400 Vdc
  • Audaphon MKP CAP Superior 3.3 uF / 400 Vdc
  • Audaphon MKT CAP 1.0 uF / 160 Vdc
  • Audaphon MKT CAP 15 uF / 160 Vdc
  • Audaphon MKT CAP 22 uF / 160 Vdc
  • 0.7 mm air core coil, 0.68 mH/0.70 Ohm
  • 2x 0.7 mm air core coil, 0.82 mH/0.89 Ohm
  • 0.7 mm air core coil, 2.2 mH/1.3 Ohm
  • 1.4 mm air core coil, 1.8 mH/0.43 Ohm
  • Metal-oxide resistor, 10W 1.8 Ohm 2% (brown-grey-gold)
  • 2x Metal-oxide resistor, 10W 10 Ohm 2% (brown-black-black)
  • Metal-oxide resistor, 10W 12 Ohm 2% (brown-red-black)

Kit without cabinet, price per speaker EUR 289,00 excl. VAT: € 242.86 / $ 216.84

Kit with high-end crossover

Our high-end version employs two ClarityCaps of type ESA in the signal path to the tweeter, in the path to the woofer one Mundorf copper foil coil. Otherwise, baked varnish air coils are used. As capacitor high-quality clarity Cap foil capacitors of type PWA are used in addition to the ESA capacitors.

  • ClarityCap ESA capacitor 0.22 uF / 630 Vdc
  • ClarityCap ESA capacitor 3.3 uF / 630 Vdc
  • 2x ClarityCap PWA capacitor 1.0 uF / 160 Vdc
  • ClarityCap PWA capacitor 15 uF / 160 Vdc
  • ClarityCap PWA capacitor 22 uF / 160 Vdc
  • Mundorf baked varnish air core coil BL71, 0.68 mH/0.71 Ohm
  • 2x Mundorf baked varnish air core coil BL71, 0.82 mH/0.89 Ohm
  • Mundorf baked varnish air core coil BL71, 2.2 mH/1.3 Ohm
  • Mundorf copper foil coil CFC16-1.8mH/0.50Ohm
  • MResist Supreme 10 Ohm / 20 Watt
  • Metal-oxide resistor, 10W 1.8 Ohm 2% (brown-grey-gold)
  • Metal-oxide resistor, 10W 10 Ohm 2% (brown-black-black)
  • Metal-oxide resistor, 10W 12 Ohm 2% (brown-red-black)

Kit without cabinet, price per speaker EUR 340,00 excl. VAT: € 285.71 / $ 255.10

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).

  • Audaphon MKT CAP 10 uF / 160 Vdc
  • 0.7 mm air core coil, 0.68 mH / 0.70 Ohm
  • Metal-oxide resistor, 10W 8.2 Ohm 2% (grey-red-gold)


Price per impedance correction for one speaker, to be mounted on a small wooden board.   EUR 9,50 excl. VAT: € 7.98 / $ 7.13

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.. I-2767, price per unit: EUR 7,60 excl. VAT: € 6.39 / $ 5.70
We recommend one board per kit (two boards for a speaker pair)

highpass filter for the usage with subwoofer

You want to use Loire Top together with other subwoofers? And Loire Top should not provide the bass? So use a high pass filter, that consists of the following components:

  • 4x Mundorf, electrolytic capacitor, unetched, 82uF / 50 Vdc Mundorf
  • H core coil H71, 4.7 mH/0.46 0hm
  • 2x ceramic resistor 1.5 Ohm/20 Watt


Price per highpass filter for one speaker, to be mounted on a small wooden board.   EUR 44,20 excl. VAT: € 37.14 / $ 33.16

High end highpass filter for the usage with subwoofer

If you want a highend high pass filter we recommend a filter with the following parts:

  • 4x ClarityCap PWA capacitor 82 uF / 160 Vdc
  • Mundorf H core coil H71, 4.7 mH/0.46 0hm
  • ceramic resistor 1.5 Ohm/20 Watt
  • MResist Supreme 1.5 Ohm / 20 Watt


Price per highpass filter high end for one speaker, to be mounted on a small wooden board.   EUR 116,05 excl. VAT: € 97.52 / $ 87.07
 


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