It was founded by brothers Kim and John Rishøj, whose engineering goal was to produce guitar pedal effects which significantly reduced unwanted signal noise.

[19] This change has included increased collaboration between companies for product development, global sales, and support as a facet of the collective TC Group, and it has also produced a new shared logo and new web presence.

Historically significant products produced by TC Group companies include the first dual concentric monitor by Tannoy in the mid-twentieth century.

1979) introduced a proprietary intercooler, which uses thousands of copper fins to multiply the exposed heatsink surface’s rapid heat dissipation.

Electric guitar innovations include the aforementioned Stereo Chorus Flanger (SCF), noted for its low signal noise, and the TC Electronic Finalizer, an audio mastering tool that combined a multiband EQ, multiband compressor, limiter and expander for digital recording.

[23] In the 1990s, TC Electronic developed the M2000 and the M5000 - digital audio mainframes/multi-effects processors making use of trademarked software to produce analog-sounding effects.

The algorithms covered Reverb (Hall, Room, Plate, Ambience, and Gated); Chorus; Flanger; Delay; Phaser; Multi Pitch Shift (up to six voices); EQ; Tremolo; Stereo Spatial Control; and Dynamics, the latter covering compression, limiting, gating and de-essing.

[24] TC-Helicon registered its trademark for its VoiceLive technology (harmony, correction and effects which has as its focus the creation of produced sounds for live performance settings.

[25][26] Among the products currently produced by TC Group brands are Lab.gruppen's PLM (Powered Loudspeaker Management) Series amplifiers, which have seen extensive use in music performance applications such as the 2014 Ultra Music Festival Korea in Seoul, South Korea[27] as well as in arenas and stadia such as the BC Place stadium in Vancouver, the largest use of the amplifiers to date, where the number of PLM units totals 157.