Amazona.de: TSM Review & Michael Krusch Interview
- 09.11.2015
- Michael Krusch
- Review
- TSM
This news item dates from November 2015. Amazona.de republished the review in January 2023 for the current 40-channel version – the link below leads to that version, which we discuss in detail in "Amazona.de Reviews the TSM Analog Summing Mixer".
New review of the Tube Summing Mixer TSM by online magazine Amazona.de.Find the complete test here: https://www.amazona.de/test-tegeler-audio-manufaktur-tube-summing-mixer/ (German)
https://www.amazona.de/test-tegeler-audio-manufaktur-tube-summing-mixer/ (English translation)
Amazona.de Asks: Michael Krusch on the Idea Behind the Tube Summing Mixer
The review includes an interview with Michael Krusch, managing director of Tegeler Audio Manufaktur. Asked about the idea behind the tube summing mixer:
"It has to sound. Not a clean unit, but transformers and tubes that add something positive to the overall sound, like all our units. Well balanced – so not a tube distortion box either, but the gilding, high-quality, refining tube sound that people love." – Michael Krusch, interviewed by Axel Ritt, Amazona.de, January 2023 (translated)
"Total recall. You mix in the DAW and sum in the TSM. No watering-down of the summing concept with channel controls and the like. One rotary switch to match the overall level to the setup. Put it in the rack, wire it up and never touch it again." – Michael Krusch, interviewed by Axel Ritt, Amazona.de, January 2023 (translated)
And on the analog summing versus in-the-box debate:
"Whatever works for someone is right. Unfortunately the discussion is partly led by people who have never tried both variants side by side. […] My recommendation to everyone: try it. Maybe you'll discover something new." – Michael Krusch, interviewed by Axel Ritt, Amazona.de, January 2023 (translated)
What the Tube Summing Mixer Is
The Tube Summing Mixer (TSM) is an analog summing mixer built around tubes and transformers: 2×20 channels – 2×16 balanced inputs on four sub-D connectors in Tascam layout plus 2×4 on stereo TRS jacks –, an active tube and transformer output stage, a mix bus up to +22 dBu, frequency response from 20 Hz to 40 kHz, 110 dB dynamic range. Deliberately there is only a stepped output switch in -3 dB increments and no channel controls: you mix in the DAW and sum in the TSM, so every mix stays exactly reproducible. What Amazona.de heard – denser mids, no loss in highs or lows – is in "Amazona.de Reviews the TSM Analog Summing Mixer"; why the unit has only one knob is explained in "The Single-Knob Mix".
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Related: Amazona.de Reviews the TSM Analog Summing Mixer · The Single-Knob Mix: Tube Summing Mixer TSM · Ivo Sotirov Tests the Tube Summing Mixer (Musixon)
