Loire Sub   Subwoofer as in K+T 2/2014

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 82 dB
  • size (HxWxD): 750 x 216 x 300 mm
  • frequency range (-8dB): 30 - 80 Hz
  • crossover frequency(s): 70 Hz
  • speaker type: closed box

Loire floorstanding consists of Loire Top the upper part of the floorstanding Loire and Loire sub. The Loire Top is a compact speaker of outstanding quality. With the additional subwoofer-set the Loire Top becomes an even more excellent standing speaker.Goal of that construction was that the bass part should reproduce sound as precisely as the satellite box. Therefore Dennis Frank and Daniel Gattig constructed the housing to reduce the internal resonances to a minimum: The woofers operate opposing each other in a push-pull-design, resulting in an almost perfect impulse compensation. German DIY-magazine Klang+Ton found the Loire Top a so excellent compact speaker that in issue 1/2014 they reviewed it individually. The Loire Top features a 30mm (1 3/16") Wavecor TW030WA10 silk dome tweeter and a 18cm (7") Wavecor WF182BD12 woofer with fiberglass cone.

The box is constructed as a closed box, which provides a very clean, dry bass. Satellite and subwoofer are built with only six boards, so they are very easy to assemble.

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 mid-woofer. Parallel to tweeter and mid-woofer still absorption circuits are arranged which correct the frequency characteristics without worsening the impulse accuracy.

The crossover also features notch filters for the tweeter and the midbass which correct some small irregularities in the frequency response without significantly affecting the transient response.

The subwoofer compartment that houses the push-pull Wavecor woofers SW182BD02, also contains the crossover between the bass and the top part. The two parallel subwoofer chassis get a 2nd order low-pass, the top is filtered by a 2nd order high-pass.

The frequency response is quite flat, the non-linear distortions are absolutely low. This can be found in top-class speakers. Compared to the original signal from your amplifier nothing is added, nothing is left away. The decay spectrum shows a small resonance at 500 Hz; apart from that it is without any fault.

An excerpt from the Klang+Ton review

... "Based on a maybe not ultra deep, but extremely clean bass that sets its accents loudly and clearly through the closed pulse-compensated design, the Loire floorstanding speaker presents an extremely well-balanced midrange.You can hear how much the midrange driver benefits from being discharged from the low frequencies. If you listen closely, you will notice the fiberglass membrane´s amazing ability to differentiate. At the upper edge of the frequency spectrum, the tweeter sets its delicate accents. Dynamically and dimensionally, the Loire gives an excellent reproduction of a live stage."

Conclusion of the magazine Klang+Ton:

"The subwoofer extension to the Loire is not exactly cheap, but lifts the box on a completely new sonic level."

Our kit Loire-Top 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 (brown-grey-gold)
  • 2x Metal-oxide resistor, 10W 10 Ohm (brown-black-black)
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)


Kit top-part without cabinet,
price per speaker   EUR 289,00 excl. VAT: € 242.86 / $ 281.71

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.


Kit top-part without cabinet,
price per speaker   EUR 340,00 excl. VAT: € 285.71 / $ 331.43

Our kit Loire bottom (sub) consists of

  • 2x Wavecor Subwoofer SW182BD02, die cast, 8 Ohm
  • 2x Damping Sonofil 100 x 35 cm for 20 litres
  • 2x Binding Post PK31, gold plated (one pair, red and black)
  • 2m 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.
  • Mundorf, electrolytic capacitor, etched, 220 uF/63 Vdc
  • Mundorf, electrolytic capacitor, etched, 470 uF/63 Vdc
  • 4x Mundorf, electrolytic capacitor, unetched, 82uF / 50 Vdc
  • Jantzen H core coil 22 mH / 1.4 Ohm / 0.8 mm
  • 2x Jantzen H core coil 10 mH / 0.39 Ohm / 1.4 mm
  • Mundorf H core coil H71, 4.7 mH/0.46 0hm
  • 2x ceramic resistor 1.5 Ohm/20 Watt
  • ceramic resistor 15 Ohm/20 Watt


Kit without cabinet,
price per speaker   EUR 426,00 excl. VAT: € 357.98 / $ 415.26

Kit with high-end crossover

Our high-end version employs ClarityCaps of type PSA in the signal path to the mid-woofer beside a Mundorf MResist Supreme resistor.


Kit without cabinet,
price per speaker   EUR 509,00 excl. VAT: € 427.73 / $ 496.17

Kit Top and Subwoofer


Kit floorstanding without cabinet,
price per speaker   EUR 715,00 excl. VAT: € 600.84 / $ 696.97

Kit with high-end crossover


Kit floorstanding without cabinet,
price per speaker   EUR 798,00 excl. VAT: € 670.59 / $ 777.88

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 9,50 excl. VAT: € 7.98 / $ 9.26

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 / $ 7.41
We recommend two boards per kit (four boards for a speaker pair)


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