Puri MK2   Shelf speaker as in Newsletter

Technical data
  • impedance: 8 Ohm
  • sensivity (2,83V/1m): 87 dB
  • size (HxWxD): 440 x 240 x 300 mm
  • frequency range (-8dB): 40 - 30000 Hz
  • crossover frequency(s): 1800 Hz
  • speaker type: bass reflex

Puri MK2 is a two way bassreflex bookshelf speaker with Audaphon drivers of high quality.

In the Puri MK2 the Audaphon MB 18-8 is used. It has a stable die-cast alu basket and a linear frequency response. In the upper frequency range the tweeter Audaphon TWS 30-4 with wide band frequency response is working, with stable alu frontplate and rear chamber.

Puri MK2 has been developed by Dennis Frank and Daniel Gattig.

The crossover consists of a second order high-pass filter (12 dB per octave slope) for the tweeter. The woofer is connected to a second order low-pass filter with a series-resonant-circuit to smooth the frequency response at 1000 Hz.

Between 50 Hz and 20000 Hz, the frequency response of this loudspeaker is linear on axis. The decay spectrum is nearly perfect. At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are lower than 1% above 300 Hz and does not exceed 1% at 95 dB at 1 m .

Our kit consists of

  • Audaphon tweeter TWS 30/4
  • Audaphon woofer MB 18-8
  • Bass reflex tube HP70 XL, 70x220 mm, black
  • 0,5x PE sealing tape, 5x2 mm, 7.5 m
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK31, gold plated (one pair, red and black)
  • 2m Speaker cable 2x1.5 mm2, transparent
  • 1,5x Pan screws 4x20 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 5.6 uF / 400 Vdc
  • 2x Audaphon MKT CAP 8.2 uF / 160 Vdc
  • 2x Audaphon MKT CAP 10 uF / 160 Vdc
  • 1.0 mm air core coil, 2.2 mH/0.89 Ohm
  • 1.3 mm air core coil, 1.8 mH/0.45 Ohm
  • 0.7 mm air core coil, 0.47 mH/0.50 Ohm
  • Metal-oxide resistor, 10W 6.8 Ohm (blue-grey-gold)
  • Metal-oxide resistor, 10W 15 Ohm (brown-green-black)

Kit without cabinet, price per speaker   EUR 196,00 excl. VAT: € 164.71 / $ 181.18

special offers, have a look 20 years Lautsprechershop with special offers

Kit with high-end crossover

The high-end kit is delivered with backlack air coils in key areas 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. All capacitors are MKP and for the tweeter working ESA 630 V.

Kit with high-end-crossover without cabinet, price per speaker   EUR 225,00 excl. VAT: € 189.08 / $ 207.98

special offers, have a look 20 years Lautsprechershop with special offers

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 12,10 excl. VAT: € 10.17 / $ 11.18


MDF Front for Kit Puri MK2,
price per unit   - not available (_)

MDF cabinet kit for Kit Puri MK2,
price per unit   EUR 109,00 excl. VAT: € 91.60 / $ 100.76

Assembled MDF cabinet (without paint) for Kit Puri MK2,
price per unit   - not available (_)

Assembled cabinet with white RAL paint for Kit Puri MK2,
price per unit   - not available (_)

universal PCBs

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 / $ 4.34
We recommend one board per kit (2 boards per speaker pair)

Measurements Puri MK2


Pictures Puri MK2


Blueprints Puri MK2


technical drawing Puri MK2


step by step instructions Puri MK2