Auditorium Monitor   Shelf speaker as in K+T 5/2022

Technical data
  • impedance: 6 Ohm
  • sensivity (2,83V/1m): 90 dB
  • size (HxWxD): 670 x 900 x 350 mm
  • frequency range (-8dB): 35 - 28000 Hz
  • crossover frequency(s): 200, 2200 Hz
  • speaker type: closed box

Auditorium Monitor is a three way compact speaker for highest performance and reproduction quality

Auditorium Monitor is a closed-cabinet loudspeaker with drivers of Mundorf and Wavecor.

Auditorium Monitor can be perfectly complemented by the bass supplements Auditorium Sub or even more powerful Auditorium Sub XL.

The kit is delivered with the following drivers:
- a Mundorf AMTU160W1.1-R air motion transformer (ribbon-tweeter)
- two Wavecor WF182CU13 mids drivers
- four Wavecor WF259PA01 woofers

The loudspeaker has been developed by Dennis Frank and Daniel Gattig.

The crossover consists of:
- a 3rd order high-pass filter (18 dB per octave slope) for the tweeter.
- a band pass consisting of a 2nd order high pass filter (12 dB per octave slope) and a 3rd order low-pass filter (18 dB per octave slope) for the mids-woofer.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is perfectly linear.

The decay spectrum as shown in the waterfall diagram is exemplary, free of any disturbing resonance.

At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0,4% above 200 Hz and doesn't exceed 0,4% at 95 dB at 1 m between 300 and 15000 Hz.

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

"What can I say? For the first time ever I had the feeling that our listening room was too small - and not because it would have boomed unduly - on the contrary: I have never experienced such a disciplined and at the same time such a deep bass - great respect to the developers, who have not relied on a cheap sensation here. No, the problem was the listening distance, which only feels "right" from about 4 meters and more, because then the precision and size of the voices and instruments gets realistic - closer up, it is impressive, but everything, really everything seems a bit too large. With the right distance, however, the world of really big, really good studio monitors opens up, which really doesn't miss anything, absolutely nothing, and which don't let anything loud or dynamic upset them. That is great precision, great dynamics, overview and at volumes that one would not normally listen to at all - with the Auditorium they become a thoroughly pleasant experience."

Conclusion of the magazine Klang+Ton:

"Nothing less than a statement of what is possible when it comes to large monitors."

Our kit consists of

  • 2x WF182CU13, Wavecor Mid/Woofer, 8 Ohm, paper cone, BD, phase plug
  • Mundorf AMTU160W1.1
  • 4x Wavecor WF259PA01, 8 Ohm, professional woofer
  • 9x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
  • 9x Damping Sonofil 100 x 35 cm for 20 litres
  • Binding Post PK28 I, gold plated (one pair, red and black)
  • 6m Speaker cable 2x1.5 mm2 black/red
  • 2,5x Pan screws 3.5x17 black, torx, 8 pieces
  • 4x Allen wood screws, black, 5x30 mm, 8 pieces
  • Plan for DIY kit

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

  • Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
  • Audaphon MKP CAP Superior 5.6 μF / 400 Vdc
  • Audaphon MKP CAP Superior 15 μF / 400 Vdc
  • Audaphon MKT CAP 4.7 μF / 160 Vdc
  • Audaphon MKT CAP 10 μF / 160 Vdc
  • Audaphon MKT CAP 47 μF / 160 Vdc
  • Mundorf, electrolytic capacitor, etched, 680 μF/63 Vdc
  • 2x JB, electrolytic capacitor, bipolar, 150 μF/100 Vdc
  • 1.0 mm air core coil, 0.33 mH/0.26 Ohm
  • 1.3 mm air core coil, 1.5 mH/0.40 Ohm
  • 0.7 mm air core coil, 0.27 mH/0.44 Ohm
  • 0.7 mm air core coil, 0.39 mH/0.49 Ohm
  • Mundorf bs180 core coil 18 mH/0.34 Ohm
  • Mundorf H core coil H71, 22 mH/1.49 0hm
  • Mundorf H core coil H140, 4.7 mH/0.26 0hm
  • ceramic resistor 0.56 Ohm/20 Watt
  • ceramic resistor 5.6 Ohm/20 Watt
  • ceramic resistor 8.2 Ohm/20 Watt
  • 4x ceramic resistor 22 Ohm/20 Watt

Kit without cabinet, price per speaker   EUR 3314,00 excl. VAT: € 2784.87 / $ 2784.87

Price for a pair of custom speakers of any color   - not available (_)

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils or Mundorf copper foil 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 Mundorf AMTU160W1.1-R are of type polypropylen (MKP) Mundorf MCAP EVO Silber Gold Öl 450 V.

  • 2x Mundorf MCAP EVO Oil 4.7 μF / 450 V
  • Mundorf MCAP EVO Oil 47 μF / 350 V
  • Mundorf MCAP EVO Silver Gold Öl 5.6 μF / 450 V
  • Mundorf MCAP EVO Silver Gold Öl 15 μF / 450 V
  • Mundorf MKP capacitor 10 μF / 250 V
  • 2x Mundorf, electrolytic capacitor, etched, 150 μF/63 Vdc
  • Mundorf, electrolytic capacitor, etched, 680 μF/63 Vdc
  • Mundorf copper foil coil CFC16-0.33 mH/0.18Ohm
  • Mundorf copper foil coil CFC14-1.5 mH/0.29Ohm
  • Mundorf baked varnish air core coil BL71, 0.27 mH/0.45 Ohm
  • Mundorf baked varnish air core coil BL71, 0.39 mH/0.51 Ohm
  • Mundorf bs180 core coil 18 mH/0.34 Ohm
  • Mundorf H core baked varnish coil BH71, 22 mH/1.49 0hm
  • Mundorf H core baked varnish coil BH140, 4.7 mH/0.26 0hm
  • ceramic resistor 5.6 Ohm/20 Watt
  • 4x ceramic resistor 22 Ohm/20 Watt
  • MResist Supreme 8.2 Ohm / 20 Watt
  • 2x Mresist Classic 1,2 Ohm / 10 Watt

Kit with high-end-crossover without cabinet, price per speaker   EUR 3703,00 excl. VAT: € 3111.76 / $ 3111.76

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).

  • 4x ceramic resistor 47 Ohm/20 Watt

Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 6,80 excl. VAT: € 5.71 / $ 5.71

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 / $ 3.95
We recommend three boards per kit (6 boards per speaker pair)


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