CT 302   Shelf speaker as in K+T 2/2019

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 83 dB
  • size (HxWxD): 420 x 198 x 273 mm
  • frequency range (-8dB): 55 - 19000 Hz
  • crossover frequency(s): Hz
  • speaker type: de bocina

CT 302 is a two way compact speaker.

CT 302 is a horn loudspeaker with drivers of Monacor .

The kit is delivered with a Monacor SPH-60X full range driver

The loudspeaker has been developed by Thomas Schmidt.

The crossover contains two wave traps in series to the speaker.

The frequency response of this speaker is nearly linear.

The decay spectrum (waterfall spectrum) shows a decelerated swing-out behaviour in the mid-range.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 1,2% above 300 Hz and doesn't exceed 2,1% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Monacor SPH-60X full range driver
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • 0,5x Foam N25, 100x50x4 cm, black
  • Binding Post PK31, gold plated (one pair, red and black)
  • 1m Speaker cable 2x1.5 mm2, transparent
  • 0,5x 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 15 μF / 400 Vdc
  • 1.0 mm air core coil, 0.68 mH/0.39 Ohm
  • Metal-oxide resistor, 10W 12 Ohm (brown-red-black)

Kit without cabinet, price per speaker   EUR 95,90 excl. VAT: € 80.59 / $ 87.04

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils. - 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 Monacor SPH-60X are of type polypropylen (MKP) Clarity-Cap ESA 250 V.

Kit with high-end-crossover without cabinet, price per speaker   EUR 113,00 excl. VAT: € 94.96 / $ 102.55

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 14,40 excl. VAT: € 12.10 / $ 13.07

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 / $ 3.81
We recommend one board per kit (two boards for a speaker pair)


Home   Klang+Ton Overview