Terra’s three wavetable oscillators can be switched between four analogue-style wave shapes – Sine, Triangle, Saw and Square – and the spiky Pulsar wave, then mangled, morphed and amplified using the Phase Distortion, Bend and Boost dials. Oscillator 2 features phase modulation and can use Oscillators 1 and/or 3 as frequency modulation sources (with linear or exponential output), while Oscillators 2 and 3 can sync to Oscillator 1 with optional ring modulation. All three oscillators have their own independent amp envelopes, too, enabling a level of dynamic intricacy rarely found in other synths.

In Polyphonic mode, Terra delivers up to eight simultaneous chordal voices; in monophonic Unison mode, eight stacked voices are individually levelled and detuned – manually or by randomisation – for thick supersaws like you haven’t heard before, and other weighty tones.

The summed signal from the oscillators feeds into a bank of three multi-effects modules, each housing 13 diverse FX algorithms – filters, distortion, delays, reverb and more. Every control within Terra, including all FX parameters, is assignable as a destination for the synth’s four colour-coded modulators. Each modulator can target two parameters at once with one of four bipolar-depth mod sources: morphing LFO (with swing), step sequencer (with adjustable step slopes and interpolation, and randomisation) and two velocity-sensitive envelopes (ADSR and DAHR).

With its edgy oscillators, unusual architecture and high-impact effects, Terra is geared up to make a wide range of fresh, modern sounds, from weird, shifting textures and step sequenced pads to deep basses, piercing leads and sparkling chords. Experienced synthesists will lose themselves in its endlessly deep but reassuringly logical interface, while the producer in need of quality sounds in a hurry will find a broad range of tweakable starting points in the extensive preset library.

A detailed manual is available here: k-devices.com/terra.