CT 277   Shelf speaker as in K+T 2/2015

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 83 dB
  • size (HxWxD): 220 x 108 x 192 mm
  • frequency range (-8dB): 80 - 22000 Hz
  • crossover frequency(s): Hz
  • speaker type: bass reflex

CT 277 is a small compact box that employs a Omnes Audio wide band driver. This box has been developed by Thomas Schmidt.

The crossover consists of a LRC notch filters wired in series.

Our kit consists of

  • Omnes Audio, full range BB3 AL
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Bitumex board 32.5 x 24.5 cm, 5,5 mm
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1m Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 black, cross recess, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 5.6 μF / 400 Vdc
  • 1.0 mm air core coil, 0.82 mH/0.44 Ohm
  • Metal-oxide resistor, 10W 5.6 Ohm (green-blue-gold)

Kit without cabinet, price per speaker   - not available

Kit with high-end crossover

The high-end kit comes with a high-value ClarityCap ESA foil capacitor. The inductance is a baked varnished coil 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.

Kit without cabinet, price per speaker   - not available

universal PCB

If you prefer to mount the crossover components on a 140 x 102 mm universal PCB instead on wood:
Universal PCB RA140, order no.. str-RA140, price per unit:   EUR 4,20 excl. VAT: € 3.53 / $ 4.09
We recommend one boards per kit (two boards for a speaker pair)


Home   Klang+Ton Overview