CT 275   Floorstanding as in K+T 6/2014

Technical data
  • impedance: 6 Ohm
  • sensivity (2,83V/1m): 81 dB
  • size (HxWxD): 966 x 160 x 182 mm
  • frequency range (-8dB): 40 - 28000 Hz
  • crossover frequency(s): 2200 Hz
  • speaker type: bass reflex

CT275 is a tall floorstanding speaker. It contains Peerless tweeter and woofer. It is developed by Holger Barske und Thomas Schmidt.

The crossover is a 2-way-filter. It consists of a 2nd order high-pass filter (12 dB per octave slope) and 3rd order low-pass filter (18 dB per octave slope).

Our kit consists of

  • Tweeter Peerless DX20BF00-08
  • Boomer Peerless SDS 5-25 8Ohm (SDS 134, 830656)
  • Bass reflex tube HP50, 50x145 mm, black
  • 1,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Spring loaded terminal T56 D
  • 2x Speaker cable 2x1.5 mm2, transparent
  • Pan screws 3.5x17 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 6.8 uF / 400 Vdc
  • Audaphon MKP CAP Superior 8.2 uF / 400 Vdc
  • Audaphon MKP CAP Superior 10 uF / 400 Vdc
  • 0.7 mm air core coil, 0.68 mH/0.70 Ohm
  • 0.7 mm air core coil, 0.33 mH/0.48 Ohm
  • 1.0 mm air core coil, 1.5 mH/0.63 Ohm
  • 2x Metal-oxide resistor, 10W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)

Kit without cabinet, price per speaker   - not available

Kit with high-end crossover

In the kit with high end crossover binding posts of high quality instead of spring terminals are delivered. In series to the tweeter a ClarityCap capacitor of type ESA is used. The coils are Mundorf baked varnish air core coils:

Kit without cabinet, price per speaker   - not available

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).


Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 11,00 excl. VAT: € 9.24 / $ 10.54

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.. I-2765, price per unit:   EUR 3,70 excl. VAT: € 3.11 / $ 3.54
We recommend two boards per kit (four boards for a speaker pair)


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