Lucy AMT 32   Floorstanding as in K+T 3/2023

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 87 dB
  • size (HxWxD): 1100 x 170 x 250 mm
  • frequency range (-8dB): 40 - 28000 Hz
  • crossover frequency(s): 2150 Hz
  • speaker type: bass reflex
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Lucy AMT 32 is a two way floorstanding speaker.

Lucy AMT 32 is a bass-reflex cabinet loudspeaker with drivers of Mundorf and Wavecor.

The kit is delivered with the following drivers:
- a Mundorf AMTU110W1.1-R air motion transformer (ribbon-tweeter)
- two Wavecor WF120CU08 woofers

The loudspeaker has been developed by Daniel Gattig and Dennis Frank.

The crossover consists of:
- a 3rd order high-pass filter (18 dB per octave slope) for the tweeter.
- a 3rd order low-pass filter (18 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear.

The decay spectrum is perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,3% above 300 Hz and doesn't exceed 0,5% 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

  • 2x WF120CU08, Wavecor Mid/Woofer, 8 Ohm, paper / glass fiber, BD, phase plug
  • Mundorf AMTU110W1.1-R
  • Bass reflex tube HP70, 70x220m, black
  • Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 1,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I Ni, nickel plated (one pair, red and black)
  • 2m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 black, torx, 8 pieces
  • 0,5x Visaton Countersunk screws 3.5x25, 8 pcs
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 0.68 μF / 400 Vdc
  • Audaphon MKP CAP Superior 1.5 μF / 400 Vdc
  • Audaphon MKP CAP Superior 6.8 μF / 400 Vdc
  • Audaphon MKP CAP Superior 22 μF / 400 Vdc
  • Audaphon MKT CAP 22 μF / 160 Vdc
  • 1.0 mm air core coil, 0.22 mH/0.21 Ohm
  • 1.4 mm air core coil 1.2 mH/0.32 Ohm
  • 0.7 mm air core coil, 0.27 mH/0.44 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)
  • Metal-oxide resistor, 10W 15 Ohm (brown-green-black)

Kit without cabinet, price per speaker   EUR 761,00 excl. VAT: € 639.50 / $ 690.66

Price for a pair of custom speakers of any color   - not available (_)

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 Mundorf AMTU1101.1-R are of type polypropylen (MKP) Mundorf MCAP EVO Silber Gold Öl 450 V.

  • Mundorf MCAP EVO 22 μF / 450 V
  • Mundorf MCAP EVO Oil 0.68 μF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 1.5 μF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 6.8 μF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 22 μF / 450 V
  • Mundorf baked varnish air core coil BL71, 0.27 mH/0.45 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf baked varnish air core coil BL100, 0.22 mH/0.21 Ohm
  • Mundorf baked varnish air core coil BL140, 1.2 mH/0.34 Ohm
  • Mresist Classic 5,6 Ohm / 10 Watt
  • Mresist Classic 8,2 Ohm / 10 Watt
  • Mresist Classic 15 Ohm / 10 Watt

Kit with high-end-crossover without cabinet, price per speaker   EUR 1076,00 excl. VAT: € 904.20 / $ 976.54

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 33 μF / 160 Vdc
  • 0.7 mm air core coil, 0.10 mH/0.27 Ohm
  • ceramic resistor 8.2 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 14,40 excl. VAT: € 12.10 / $ 13.07

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)

Measurements

measurmentsMeasurements on this speaker

Pictures

PhotosPictures of this loudspeaker

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