Kirana   Shelf speaker as in K+T 3/2021

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 84 dB
  • size (HxWxD): 270 x 180 x 176 mm
  • frequency range (-8dB): 60 - 24000 Hz
  • crossover frequency(s): 3000 Hz
  • speaker type: bass reflex

Kirana is a two way compact speaker.

Kirana is a bass-reflex cabinet loudspeaker with drivers of Audiopur and Wavecor.

The kit is delivered with the following drivers:
- a Audiopur AMT9M air motion transformer (ribbon-tweeter)
- a Wavecor WF118WA05 woofer

The loudspeaker has been developed by Dennis Frank.

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 0,5% above 300 Hz and doesn't exceed 1,4% at 95 dB at 1 m between 300 and 15000 Hz.

An excerpt from the Klang+Ton review (Translation of the author into English)

"Even in our relatively large listening room, the "Kirana" could assert itself splendidly as long as we did not push its dynamic limits. There is even such a thing as real bass coming from the small housing, which lays a pleasantly full and, if necessary, dynamic foundation. The mid-range also makes a balanced and defined impression, while the AMT sets its quite clear highlights in the upper range of the audio spectrum. Overall, the speaker does a really good job in view of its very compact dimensions and sounds a lot more adult than the size of the tiny midwoofer would suggest."

Our kit consists of

  • Audiopur AMT9M
  • Wavecor Mid/Woofer WF118WA05 glass fiber, 4 Ohm
  • 2x Bass reflex tube HP35, 35x123mm, black
  • 0,5x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 0,25x 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 black/red
  • Pan screws 4x20 black, torx, 8 pieces

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

  • Audaphon MKP CAP Superior 3.3 μF / 400 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 8.2 μF / 50 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 15μF / 50 Vdc
  • Mundorf air core coil L50, 3.3 mH/3.13 0hm
  • 1.0 mm air core coil, 0.68 mH/0.39 Ohm
  • 0.7 mm air core coil, 0.82 mH/0.89 Ohm
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 5W 10 Ohm (brown-black-black)

Kit without cabinet, price per speaker   EUR 177,00 excl. VAT: € 148.74 / $ 166.59

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 Audiopur AMT9M are of type polypropylen (MKP) Clarity-Cap ESA 250 V.

  • ClarityCap ESA capacitor 3.3 μF / 250 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 8.2 μF / 50 Vdc
  • JB, electrolytic capacitor, bipolar advanced, 15μF / 50 Vdc
  • Mundorf baked varnish air core coil BL71, 0.82 mH/0.89 Ohm
  • Mundorf baked varnish air core coil BL100, 0.68 mH/0.39 Ohm
  • Mundorf air core coil L50, 3.3 mH/3.13 0hm
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)
  • Metal-oxide resistor, 5W 10 Ohm (brown-black-black)

Kit with high-end-crossover without cabinet, price per speaker   EUR 195,00 excl. VAT: € 163.87 / $ 183.53

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).

  • JB, electrolytic capacitor, bipolar advanced, 33μF / 50 Vdc
  • ceramic resistor 10 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 5,00 excl. VAT: € 4.20 / $ 4.71

universal PCB

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,70 excl. VAT: € 3.95 / $ 4.42
We recommend one board per kit (2 boards per speaker pair)

Measurements

measurmentsMeasurements on this speaker

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