AllAl   wall-mounted speaker as in K+T 3/2024

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 90 dB
  • size (HxWxD): 916 x 608 x 200 mm
  • frequency range (-8dB): 30 - 35000 Hz
  • crossover frequency(s): 1900 Hz
  • speaker type: bass reflex
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AllAl is a two way wall-mounted speaker.

AllAl is a bass-reflex cabinet loudspeaker with drivers of SEAS .

The kit is delivered with the following drivers:
- a SEAS 27TBCD/GB-DXT tweeter
- two SEAS L18RNX/P woofers

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

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 perfectly 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 1,1% 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

  • Seas 27 TBCD/GB-DXT (H1499-06)
  • 2x Seas L18RNX/P (H1224-08)
  • Bass reflex tube HP70, 70x220m, black
  • 3x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 2m Speaker cable 2x1.5 mm2, transparent
  • 2x 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 400 Vdc
  • Audaphon MKP CAP Superior 400 Vdc
  • Audaphon MKT CAP 160 Vdc
  • Audaphon MKT CAP 160 Vdc
  • 1.4 mm air core coil
  • 1.0 mm air core coil
  • 0.7 mm air core coil
  • 0.7 mm air core coil
  • Metal-oxide resistor, 10W

Kit without cabinet, price per speaker   EUR 500,00 excl. VAT: € 420.17 / $ 457.98

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 SEAS 27TBCD/GB-DXT are of type polypropylen (MKP) Mundorf MCAP EVO Öl 450 V.

  • Mundorf MCAP EVO Oil 450 V
  • Mundorf MCAP EVO Oil 450 V
  • Mundorf MKP capacitor 250 V
  • Mundorf MKP capacitor 250 V
  • Mundorf baked varnish air core coil BL71
  • Mundorf baked varnish air core coil BL71
  • Mundorf baked varnish air core coil BL100
  • Mundorf baked varnish air core coil BL140
  • Mresist Classic 10 Watt

Kit with high-end-crossover without cabinet, price per speaker   EUR 581,00 excl. VAT: € 488.24 / $ 532.18

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 160 Vdc
  • 0.7 mm air core coil
  • ceramic resistor 20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 14,80 excl. VAT: € 12.44 / $ 13.56

universal PCB

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,70 excl. VAT: € 3.95 / $ 4.31
We recommend one board per kit (2 boards per speaker pair)

Measurements

measurmentsMeasurements on this speaker

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