Cinema Basic R1   Shelf speaker as in K+T 3/2021

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 86 dB
  • size (HxWxD): 300 x 177 x 200 mm
  • frequency range (-8dB): 70 - 22000 Hz
  • crossover frequency(s): Hz
  • speaker type: bass reflex

Cinema Basic R1 is a two way compact speaker.

Cinema Basic R1 is a bass-reflex cabinet loudspeaker with drivers of Dayton .

The kit is delivered with the following drivers:
- a Dayton ND25FW-4 tweeter
- a Dayton DC130B-8 woofer

The loudspeaker has been developed by Michael Schmitz and Thorsten Fischer.

The crossover consists of:
- a 2nd order high-pass filter (12 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear.

The decay spectrum is nearly perfect.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,4% above 300 Hz and doesn't exceed 0,5% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Dayton DC130B-8
  • Dayton ND25FW-4
  • Bass reflex tube HP50, 50x143mm, black
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • 0,5x Damping Sonofil 100 x 35 cm for 20 litres
  • Terminal T105 Au, with brass, gold plated
  • 1,5m Speaker cable 2x1.5 mm2, transparent
  • 1,5x Pan screws 3.5x17 black, torx, 8 pieces
  • Pan screws 4x20 black, torx, 8 pieces
  • Grille circuit board LP/RA140,
  • 15x Plan for DIY kit

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

  • Audaphon MKP CAP Superior 6.8 μF / 400 Vdc
  • Audaphon MKT CAP 4.7 μF / 160 Vdc
  • Audaphon MKT CAP 22 μF / 160 Vdc
  • Mundorf air core coil L50, 0.12 mH/0.42 0hm
  • 1.0 mm air core coil, 1.5 mH/0.63 Ohm
  • Metal-oxide resistor, 5W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 5W 3.3 Ohm (orange-orange-gold)

Kit without cabinet, price per speaker   EUR 123,00 excl. VAT: € 103.36 / $ 125.07

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils on important parts of the crossover 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. The capacitors for the Dayton ND25FW-4 are of type polypropylen (MKP) Clarity-Cap ESA 250 V.

  • ClarityCap ESA capacitor 6.8 μF / 250 Vdc
  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • Audaphon MKP CAP Superior 22 μF / 400 Vdc
  • Mundorf baked varnish air core coil BL100, 1.5 mH/0.62 Ohm
  • Mundorf air core coil L50, 0.12 mH/0.42 0hm
  • Metal-oxide resistor, 5W 2.2 Ohm (red-red-gold)
  • Metal-oxide resistor, 5W 3.3 Ohm (orange-orange-gold)

Kit with high-end-crossover without cabinet, price per speaker   EUR 143,00 excl. VAT: € 120.17 / $ 145.40

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).

  • Audaphon MKT CAP 8.2 μF / 160 Vdc
  • 0.7 mm air core coil, 1.0 mH/0.88 Ohm
  • ceramic resistor 12 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 12,90 excl. VAT: € 10.84 / $ 13.12

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 / $ 4.27
We recommend one board per kit (two boards for a speaker pair)


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