The instrument is eight-part multitimbral, 32 note-polyphonic and features a modular and extendable design that currently includes three types of oscillator, three types of filter, two types of envelope and four different effects units.

At the heart of any analog-style synth is its oscillators. The Delta III's carefully designed oscillators provide an extensive range of waveform types from classic analog to hardcore digital. The Delta III contains three types of oscillator: Digital 1, Digital 2 and Analog. Both Digital oscillators have a wide selection of waveform types available, from traditional pure electronic tones such as triangle and square waves, to cutting-edge modified waveforms like RichSaw and Spectra. Both digital oscillators have a unique morph control that lets you create a waveform that is a hybrid of two others. The Analog oscillator can be used to produce classic analog-style waveforms ranging from square to sawtooth. All three oscillators can be used for AM and FM synthesis. A noise source is also available for creating sound effects and percussive noises.

The Delta III features 2 separate filter modules that can be used in series or parallel. Special attention has been given to the design of the filters so that they replicate the rich sound of a true analog filter. Three filter types (Delta II, CronoX and Delta III) give the user a wide range of filtering options. Each filter is highly flexible with several variations of lowpass, highpass, bandpass and notch available. The Delta III filter is especially juicy.

The Delta III's sophisticated effects section consists of a mono and a stereo effects processor. Four effects are currently available: Delay, Chorus, Phaser and Filter. The Delay features tempo-syncing over a range of beat divisions. All effects have various modulation capabilities. The Chorus, for example, has a unique "Spread" control that can be used to create a richer, more-complex chorused sound.