Cheap Trick CT 235 Coax speaker with Eminence PA drivers as in Klang+Ton 2/2008

CT 235 aus Zeitschrift K+T 2/2008
Technical data
- size (HxWxD): 120 x 40 x 24.6 cm
- impedance: 8 Ohm
- sensitivity (2.83V/1m): 91 dB
- crossover frequency: 2.1 kHz
- frequency range (-8dB): 32-20 000 Hz
- speaker type: bass reflex
The CT 235 is a bass reflex speaker with Eminence drivers. An Eminence Beta 10 CX and an APT50 are being used forming a coax driver.

The Eminence driver is actually a PA driver having an efficiency that is rather high compared to standard hi-fi speakers.

The cabinet consists of several layers of thin boards that are glued on top of one another. This sounds more complicated than it is, since only rectangular boards are being used.

Excerpt from the review in Klang+Ton 2/2008:
"The first thing we noticed in our listening room was the exceptional sound clarity of this coax speaker. Despite the somewhat non-linear frequency response, nothing was missing. Bass was particularly dynamic, fast and tight, as was to be expected from a good paper diaphragm driver. Bass and midrange are an excellent foundation for all sorts of nuances; especially vocals are magnificent, without any colouration. The high frequencies can be adjusted by angling the speakers. Pointed towards the listener the high frequencies might be somewhat emphasised, slight off-axis they are spot-on, but that's obviously a matter of taste. The dynamics of this reasonably priced driver are impressive. The speaker is ideally suited for both, low volumes as well as at volumes where the neighbour might be calling the police. The CT 235 always remains in absolute control. Time and again it's exciting, but not surprising for the connoisseur, to experience the exceptional three-dimensionality of a good coax speaker. Stage width and depth of the Eminence floorstander are extraordinary. Especially, realistic recording sessions like in auditoriums are reproduced accurately, picturing the musicians and the concert hall in your mind's eye. " ...
 
Our kit consists of:

  • 1x Eminence Beta 10 CxL
  • 1x Eminence APT 50
  • 6 bags damping material
  • one mat nap foam
  • one round terminal
  • 8 Allen screws 5x30 mm
  • 4 PAN screws
  • 3 metres loudspeaker cable 2x 1.5 mm2
  • self-adhesive sealing tape
  • the Klang+Ton building instruction
  • right:the crossover components to be mounted on wood:
  • 1.5 mH air core coil / 1.4 mm
  • 0.39 mH air core coil / 0.71 mm
  • 0.22 mH air core coil / 0.71 mm
  • 1.0 mH air core coil / 1.0 mm
  • 6.8 μF ELCO, non-etched
  • 8.2 μF MKP capacitor
  • 1.8 μF MKP capacitor
      (1.0 + 0.82 μF in parallel)
  • 2.2 Ohm MOX10 resistor (red-red-gold
  • 22 Ohm MOX10 resistor (red-red-black)
  • 12 Ohm MOX10 resistor (brown-red-black)

Price of CT 235 kit without cabinet per unit: - not available

If you prefer to mount the crossover components on a universal PCB instead on wood:
universal PCB 220x155 mm, Order-No. I-8805002,     Price   EUR 11,80 excl. VAT: € 9.92 / $ 10.71

Cheap Trick CT 235 high-end

If you prefer high quality components we recommend our high-end kit with the following crossover components:
  • 1.5 mH baked varnish coil / 1.4 mm
  • 0.39 mH air core coil / 0.71 mm
  • 0.22 mH baked varnish coil / 0.71 mm
  • 1.0 mH air core coil / 1.0 mm
  • 6.8 μF MKP capacitor
  • 8.2 μF MKP capacitor
  • 1.8 μF Mundorf MCAP Supreme
  • 2.2 Ohm MOX10 resistor (red-red-gold)
  • 22 Ohm MOX10 resistor (red-red-black)
  • 12 Ohm MOX10 resistor (brown-red-black)

Price of CT 235 high-end kit without cabinet per unit: - not available

If you prefer to mount the crossover components on a universal PCB instead on wood:
universal PCB 220x155 mm, Order-No. I-8805002,     Price   EUR 11,80 excl. VAT: € 9.92 / $ 10.71

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