Albatros, Floorstanding   as in K+T 5/2014

Albatros is a small floorstander. It is a bass reflex system. 
Albatros contains a Harwood air motion transformer (tweeter) and a Harwood mid-woofer.
Technical data
- impedance: 10 Ohm
- sensivity (2,83V/1m): 80 dB
- size (HxWxD): 1000 x 180 x 230 mm
- frequency range (-8dB): 35 - 28000 Hz
- crossover frequency(s): 3100 Hz
- speaker type: bass reflex

Albatros is a small floorstander. It is developed by Thomas Schmidt and Holger Barske as bass reflex system. Albatros contains a Harwood air motion transformer (tweeter) and a Harwood mid-woofer.
 

The crossover consists of a 2nd order high-pass filter (12 dB per octave slope) and a 3rd order low-pass filter.

The frequency response is quite flat at an angle of 15 to 30 degree, the harmonic distortion is low (less than 0.4% above 300Hz at 85 dB (1m)). The decay spectrum shows a small resonance at 400 Hz; apart from that it is without any fault.
     

Our kit consists of

  • Harwood Air Motion Transformer AM 20
  • Harwood mid-woofer TM 130/25F1
  • Bass reflex tube HP50, 50x145 mm, black
  • PE sealing tape, 5x2 mm
  • 1,5x 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
  • Pan screws 4x20 black, cross recess, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 8.2 uF / 400 Vdc
  • Audaphon MKT CAP 4.7 uF / 160 Vdc
  • 0.7 mm air core coil, 0.56 mH/0.55 Ohm
  • 1.4 mm air core coil, 0.47 mH/0.19 Ohm
  • 1.4 mm air core coil, 2.2 mH/0.46 Ohm
  • Metal-oxide resistor, 10W 8.2 Ohm [grey-red-gold]


Kit without cabinet,
price per speaker EUR 198,00 excl. VAT: € 166.39 / $ 191.34

Kit with high-end crossover

Our high-end version employs Mundorf varnish air core coils and in series to the air motion transformer (tweeter) a clarity cap capacitor type ESA of highest quality.

  • ClarityCap ESA capacitor 3.3 uF / 630 Vdc
  • ClarityCap PWA capacitor 4.7 uF / 400 Vdc
  • Mundorf baked varnish air core coil BL71, 0.56 mH/0.64 Ohm
  • Mundorf baked varnish air core coil BL140, 0.47 mH/0.19 Ohm
  • Mundorf baked varnish air core coil BL140, 2.2 mH/0.46 Ohm
  • Metal-oxide resistor, 10W 8.2 Ohm [grey-red-gold]


Kit without cabinet,
price per speaker EUR 228,00 excl. VAT: € 191.60 / $ 220.34

Kit with Mundorf high-end crossover no.2

Our high-end version no.2 employs Mundorf baked varnish air core capacitors like the high-end-version. In contrast there is a Mundorf EVO Silver Gold Oil capacitor in series to the tweeter and an EVO capacitor in parallel to the woofer.

  • Mundorf MCAP EVO Silver Gold Öl 3.3 uF / 450 V
  • Mundorf MCAP EVO 4.7 uF / 450 V
  • Mundorf baked varnish air core coil BL71, 0.56 mH/0.64 Ohm
  • Mundorf baked varnish air core coil BL140, 0.47 mH/0.19 Ohm
  • Mundorf baked varnish air core coil BL140, 2.2 mH/0.46 Ohm
  • Metal-oxide resistor, 10W 8.2 Ohm [grey-red-gold]


Kit without cabinet,
price per speaker EUR 260,00 excl. VAT: € 218.49 / $ 251.26

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).

  • Mundorf, electrolytic capacitor, unetched, 22uF / 70 Vdc
  • 0.7 mm air core coil, 0.68 mH/0.70 Ohm
  • Metal-oxide resistor, 10W 10 Ohm [brown-black-black]


Price per impedance correction for one speaker, to be mounted on a small wooden board.   EUR 9,10 excl. VAT: € 7.65 / $ 8.79

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 / $ 7.34
We recommend one board per kit (two boards for a speaker pair)
 


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