Synth

Ultra

Ultra Audio · $149 intro / $249 full

Ultra is a flagship multi-synthesis software synthesizer built around the UltraWave engine, combining five sound sources, dual filters, deep modulation, and 32-voice polyphony.

Read the full reviewOfficial site

Overview

Ultra is Ultra Audio's flagship software synthesizer, built to cover analog, wavetable, and sampled synthesis in a single instrument. Its core is UltraWave, an oscillator that sits between a sampler and a wavetable and blends up to four stereo wavetables on the fly for organic, evolving movement.

Beyond UltraWave, each voice can draw on a virtual-analog engine with three oscillators, a dual-engine Supersaw, noise, and a sub-oscillator, all mixed before a dual-filter stage. Four multi-mode LFOs, three envelopes, a three-part effects rack, 32-voice polyphony, and MPE make it a deep sound-design platform. Ultra ships with a perpetual license and lifetime free updates.

Read the full Ultra review for specs, comparisons, and who should buy it.

Specifications

Type
Multi-synthesis synthesizer
Sound sources
UltraWave, sampler, virtual analog, Supersaw, noise, plus sub-oscillator
UltraWave
Blends up to 4 stereo wavetables; adds pitch, amp, and timing data
Analog engine
3 multi-wave oscillators, cross-modulation, dual-engine Supersaw
Filters
Dual-filter section
Modulation
4 LFOs (A/B crossfade, 4 modes), 3 ADSR with hold, velocity/aftertouch/random
Effects
3 sections (Global/A/B): distortion, bit-crusher, chorus, delay, reverb, OTT, gate
Polyphony
Mono to 32 voices
Expression
MPE compatible
Import
WAV import with cycle extraction; multi-sampling with pitch/velocity morphing
System
macOS (Apple Silicon and Intel), Windows
Licensing
Perpetual license, lifetime free updates, no subscription

Last verified 2026-07-10

FAQ

What is Ultra?

Ultra is a flagship multi-synthesis software synthesizer from Ultra Audio, built around the UltraWave engine, that combines five sound sources, dual filters, and deep modulation in one instrument.

What is UltraWave?

UltraWave is Ultra's signature oscillator. It adds pitch, amplitude, and timing data to a wavetable and blends up to four stereo wavetables at once, so it can play back complex material such as vocals smoothly.

How much does Ultra cost?

Ultra is $249 at full price, with an introductory price of $149, and it offers a rent-to-own plan that ends in a perpetual license. Every license includes lifetime free updates and no subscription.

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