Hans Georg, Shelf speaker   as in K+T 4/2014

Technical data
- impedance: 4 Ohm
- sensivity (2,83V/1m): 85 dB
- size (HxWxD): 280 x 150 x 195 mm
- frequency range (-8dB): 60 - 30000 Hz
- crossover frequency(s): Hz
- speaker type: bass reflex

Hans Georg is a small 2-way-shelf-speaker. It is a reasonably priced loudspeaker with Monacor drivers developed by Hans Georg Lahr.

The crossover consists of 2rd order filters (12 dB per octave slope).
 

Our kit consists of
 
  • neodymium tweeter Monacor DT-25n
  • mid-woofer Monacor SP-60/4
  • Bass reflex tube HP35, 35x123mm, black
  • 0,5x Foam N25-30, 50 x 50 cm, black
  • Spring loaded terminal T56 D
  • 1,5m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit
 the crossover components,
to be mounted on a small wooden board.

  • Audaphon MKT CAP 3.3 μF / 160 Vdc
  • Electrolyt capacitor, 10 μF / 100 Vdc
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • 0.7 mm air core coil, 0.68 mH/0.70 Ohm
  • Metal-oxide resistor, 10W 2.7 Ohm (red-purple-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)

Hint: If you use the delivered bass reflex tube the housing needs a bigger cut-out than marked in the plan.

Kit without cabinet, price per speaker EUR 105,00 excl. VAT: € 88.24 / $ 96.18

Kit with high-end crossover

Our high-end version employs a Mundorf baked varnish air core coil in series to the woofer. In series to the tweeter a Audaphon MKP capacitor is used. Elsewhere only polyester capacitors are used instead of electrolyt capacitors.

  • Audaphon MKP CAP Superior 3.3 μF / 400 Vdc
  • Audaphon MKT CAP 10 μF / 160 Vdc
  • Mundorf baked varnish air core coil BL100, 0.68 mH/0.39 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • Metal-oxide resistor, 10W 2.7 Ohm (red-purple-gold)
  • Metal-oxide resistor, 10W 8.2 Ohm (grey-red-gold)
  • Terminal T80AU (80 mm square)

Hint: If you use the delivered bass reflex tube the housing needs a bigger cut-out than marked in the plan.

Kit without cabinet, price per speaker EUR 125,00 excl. VAT: € 105.04 / $ 114.50

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).

  • Electrolyt capacitor, 15 μF / 100 Vdc
  • 0.7 mm air core coil, 0.18 mH/0.36 Ohm
  • Metal-oxide resistor, 5W 8.2 Ohm (grey-red-gold)


Price per impedance correction for one speaker, to be mounted on a small wooden board.   EUR 5,60 excl. VAT: € 4.71 / $ 5.13

Bitumex board

Optional: Ist possible to use damping Bitumex boards to insulate the cabinet. Two or three boards per cabinet are useful: Bitumex board 32.5 x 24.5 cm, 2mm

Price per board EUR 3,40 excl. VAT: € 2.86 / $ 3.11

universal PCB

If you prefer to mount the crossover components on a 159 x 127 mm universal PCB instead on wood:
Universal PCB RA160, order no.. str-RA160, price per unit: EUR 5,90 excl. VAT: € 4.96 / $ 5.40
We recommend one board per kit (two boards for a speaker pair)
 


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