Harrison Audio is releasing Mixbus 12, a new version of its workstation built around the sound of its consoles. On the menu: a DeNoiser and a DeEsser on every channel, a redesigned MIDI editor, and the SSL 9000J channel strip reserved for the Pro edition. Here’s what really changes, and for whom.
Some brands have a name that instantly suggests a sonic flavour. Harrison is one of them: the company’s 32 series channel strips from Tennessee have shaped countless records and film soundtracks, and their equaliser remains a benchmark for smoothness in the high frequencies. Mixbus is precisely the idea of putting that console philosophy inside a modern workstation. Version 12 stays on that course without betraying it, mainly strengthening the channel processing and MIDI workflow.
A dematerialised console, now under the SSL umbrella
Let’s recap the concept: Mixbus is not a generic virtual mixer. Each channel includes a Harrison 32C equaliser, a compressor, a gate and bus sends, while the buses provide “tape” saturation, compression and tonal shaping. You don’t build a mix plugin by plugin: you push faders on a knob-per-function surface, exactly like on a large-format desk. Under the bonnet, the audio engine shares its DNA with Ardour, which explains the robust transport and cross‑platform support.
The industrial context has changed, and it shows in the product. Now under the Solid State Logic flag, Harrison is capitalising on both legacies: its in‑house 32C on one side, and a switchable SSL 9000J channel strip on the other in the Pro version. For anyone familiar with SSL’s signature — that grip on the bus and the punchy dynamics that pull a mix together — having both schools in the same piece of software is not a marketing gimmick, it’s a genuine palette of colours. We had already seen this console‑heritage logic at work in the plugin range born from the SSL / sonible partnership.
DeNoiser and DeEsser: post‑production reflexes on every channel
The real novelty in Mixbus 12 is the integration of a DeNoiser and a DeEsser directly on the channel strip, on every track. Harrison is not winging it here: the brand has long designed consoles for cinema and post‑production, where cleaning up noisy dialogue or taming harsh sibilance is everyday work. Having these tools at channel level, without having to load a third‑party plugin or route to an aux, concretely speeds up work on imperfect takes.
The rest of the additions serve the same idea: stay in the flow without leaving the window.
- Reworked MIDI editing: multiple regions can be displayed and edited in a single piano roll, with inactive regions shown as ghost notes so you can keep an eye on harmonic relationships.
- Cue clips expanded to sixteen rows, triggerable via buttons or automatically from the timeline, with direct recording of both audio and MIDI into the cells.
- Processing chains can be saved as presets and re‑applied to any track with a single click.
- Darkened interface inspired by the 32Classic console, new vertical and horizontal scrollbars, and a collapsible Focus Channel view.
Two editions, two aims
The split between Mixbus 12 and Mixbus 12 Pro is clear. The standard version covers everyday studio work; the Pro adds the switchable SSL 9000J channel strip and, crucially, Dolby Atmos immersive mixing tools, with spatial panning and binaural rendering for 7.1.4 monitoring. This is the edition targeting immersive workflows, in line with what is increasingly common on the mastering side.
| Feature | Mixbus 12 | Mixbus 12 Pro |
|---|---|---|
| Price | $49.99 | $149.99 |
| Channel EQ | Harrison 32C | 32C + switchable SSL 9000J |
| Per‑channel DeNoiser / DeEsser | Yes | Yes |
| Dolby Atmos immersive mixing | — | 7.1.4 + binaural rendering |
| Cue clips | 16 rows | 16 rows |
On the platform side, Mixbus 12 runs on macOS (Apple Silicon M1 to M4 as well as Intel), Windows and Linux — a rare consistency that again comes from the Ardour foundation.
My take
I spent years as a studio technical director arguing that an all‑digital approach is perfectly viable — I lived through the transition from analogue to computer‑based music production from the inside, and I’ve never believed a physical fader sounds “better” on principle. What matters is the result and the quality of the design, not dogma. From that angle, Mixbus remains one of the few workstations to truly embrace a specific colour: the 32C is not a skin, it imparts character. And seeing the channel DeNoiser arrive resonates even more with me because, both in control rooms and studios, we spend a huge amount of time rescuing fragile takes; having it permanently on every channel, without convoluted routing, saves time where it really counts. At $49.99, the entry point is still one of the most honest propositions on the market. For a hybrid studio or a demanding home studio, it’s a serious contender, to be weighed against heavyweights like Logic Pro.
The underlying question remains: Mixbus 12 doesn’t reinvent the workstation, it refines an already clear promise. But when that refinement consists in making vocal cleanup trivial and putting two schools of legendary consoles within fader’s reach, you’ve got an update that deserves attention. The full spec sheet and demos are available on the Harrison Audio website.
