Redcatt Moai   Floorstanding as in K+T 3/2023

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 97 dB
  • size (HxWxD): 1386 x 328 x 514 mm
  • frequency range (-8dB): 55 - 20000 Hz
  • crossover frequency(s): 2100 Hz
  • speaker type: bass reflex

Moai is a two way floorstanding speaker.

Moai is a bass-reflex cabinet loudspeaker with drivers of Redcatt and Lavoce.

The kit is delivered with the following drivers:
- a Redcatt 140FCDX4 + LaVoce HD1004 horn with driver
- two Redcatt 101NPMX8 woofers

The loudspeaker has been developed by Blue Planet Acoustic and Thomas Schmidt.

The crossover consists of:
- a 2nd order high-pass filter (12 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear.

The decay spectrum is nearly perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,4% above 300 Hz and doesn't exceed 1,2% at 95 dB at 1 m between 300 and 15000 Hz.

An excerpt from the Klang+Ton review (Translation of the author into English)

Conclusion of the magazine Klang+Ton:

Our kit consists of

  • Redcatt 140FCDX4
  • 2x Redcatt 101NPMX8
  • LaVoce HD1004
  • 2x Bass reflex tube HP100, 100x197 mm, black
  • PE sealing tape, 5x2 mm, 7.5 m
  • 3x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 3m Speaker cable 2x1.5 mm2, transparent
  • 2,5x Pan screws 4x20 black, torx, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 3.9 μF / 400 Vdc
  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • Audaphon MKT CAP 33 μF / 160 Vdc
  • 1.4 mm air core coil, 1.0 mH/0.29 Ohm
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 6.8 Ohm (blue-grey-gold)

Kit without cabinet, price per speaker   EUR 382,00 excl. VAT: € 321.01 / $ 346.69

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 Redcatt 140FCDX4 + LaVoce HD1004 are of type polypropylen (MKP) Clarity-Cap CSA 630 V.

  • ClarityCap CSA capacitor 3.9 μF / 630 Vdc
  • ClarityCap CSA capacitor 4.7 μF / 630 Vdc
  • Audaphon MKT CAP 33 μF / 160 Vdc
  • Mundorf baked varnish air core coil BL71, 0.33 mH/0.48 Ohm
  • Mundorf baked varnish air core coil BL140, 1.0 mH/0.30 Ohm
  • Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
  • Metal-oxide resistor, 10W 6.8 Ohm (blue-grey-gold)

Kit with high-end-crossover without cabinet, price per speaker   EUR 432,00 excl. VAT: € 363.03 / $ 392.07

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 22 μF / 160 Vdc
  • 1.0 mm air core coil, 0.33 mH/0.26 Ohm
  • ceramic resistor 5.6 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 14,80 excl. VAT: € 12.44 / $ 13.43

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 / $ 10.71
We recommend one board per kit (2 boards per speaker pair)


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