monacor KATANA-M1

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2 050,0 kr3 945,0 kr

Open baffle loudspeaker kit from monacor



An open secret …
With the speaker KATANA-M1, you will achieve an impressive sound and design in your living room. The appealing DIY set convinces with its extraordinary open baffle design. The configuration of the set is the result of extensive, practical experience of our acoustic developers at MONACOR.
The DIY kit has been pre-assembled in an optimum way and contains all necessary components as well as assembly instructions. All you need to assemble the components is a soldering iron, a screwdriver and a side cutter.
The open rear construction allows you to achieve a realistic and impressively spatial sound. The size of the baffle and the choice of speakers are perfectly matched to the application. The wood which has been used is untreated and can be painted as required. The awareness of having created such a great sound experience with your own hands: priceless.
The DIY kit KATANA-M1 consists of:
  • 1 x hi-fi full range speaker SPX-31M, 20 W, 8 Ω
  • 1 x pair of speaker pole terminals
  • 2 x hi-fi bass-midrange speaker SPM-205/8, 70 W, 8 Ω
  • 1 x film capacitor, 22 µF, 250 V
  • 1 x transformer core coil LSI-56T, 5.6 mH
  • 3 m speaker cable
  • 4 x rubber foot (from the set HF-10)
  • mounting screws

The original kit also includes:

  • 1 x speaker baffle (beech, 20 mm multiplex)
  • 1 x speaker base plate
  • 2 x side wall
  • Wood glue, solder, mounting screws, assembly instructions

We have two different versions available: the original package from monacor including the baffle pieces (wood), glue and soldering tin, and a version containing the elements, terminals, crossover parts, cable, rubber feet and mounting screws.

Additional information

Weight 15 kg
Kit option

original, no wood


Technical Specifications

For full specifications, please refer to individual items.

Housing type: . . . . . . . . . . . . open baffle
Rated power: . . . . . . . . . . . . 120 W
Impedance: . . . . . . . . . . . . . . 4 Ω
SPL: . . . . . . . . . . . . . . . . . . . 85 dB
Crossover frequency: . . . . . . 250 Hz
Frequency range: . . . . . . . . . 45 – 20 000 Hz
Dimensions (W × H × D): . . . 35 × 110 × 21 cm


Test results

Test results

“Driven by a revised tube amplifier REVOX A40 (and a distance of 90 cm kept from the wall), the first acoustic experience was: Paranoimia by Art of Noise. Using one word to describe it: unbelievable. The baffles provide an astonishingly high-resolution and transparent sound and a fantastic bass. I totally agree: a very clean bass reproduction.”

Frank Imbescheid, customer

“It is a board with a few speakers. That is all. I am always amazed at what can be achieved in the bass range with such a simple design. The Katana-M1 is no exception, quite the contrary. Properly positioned, it is striking proof that the best bass cabinet is not a cabinet. That is to say, the bass reproduction is extremely colourful, variable, authentic and has astonishing depth.”
Holger Barske Klang+Ton 3/2021
“I am really surprised how a speaker can suddenly sound completely different and provide a much more spatial sound. No matter what kind of music you are listening to, you can really hear the stereo effects much more intensively. In addition, you can experience much more effectively how the sound ‘travels’ back and forth between the right speaker and the left speaker, as if you are using a completely different amplifier or a much better channel separation is available all of a sudden. Once, I have seen a YouTube video about an open baffle. The builder had tears in his eyes when he heard it for the first time and I can fully understand why. It was just brilliant. Once the speaker had been installed, I sat down for an hour and took notes to explain the sound spectacle which was going on here. I am still unable to explain it properly, it is just brilliant.

1 review for monacor KATANA-M1

  1. Olof (verified owner)

    A speaker for younger generations. Lots of base. Works best with uncomplicated music but good value for the money and a fun project. Became a Battery driven Makita speaker with a simple class D amp. Fits like a glove.

    (0) (0)
    • admin (store manager)

      Thanks for your well description.

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