Softube Flow Studio

Softube bring hands‑on control to their Flow mixing and mastering concept.

Softube’s impressive Flow Mixing Suite was the subject of an SOS review in the March 2026 issue. The subscribe‑to‑own plug‑in collection provides the user with a sophisticated collection of high‑end plug‑ins spanning EQ, dynamics, saturation, ambience, modulation, guitar‑amp modelling and more, capable of handling pretty much any type of mixing task. And, while you can deep‑dive into any of the individual plug‑ins, a mothership plug‑in lets you load preconfigured plug‑in signal chains — a Flow preset — and, via an elegant macro control system, quickly adjust the key parameters within the signal‑chain without getting distracted by the deeper control options.

Softube have now released the Flow Studio hardware controller, designed to give the user hands‑on control of these Flows, making what is already a streamlined workflow even more intuitive. The Flow Studio will work with either the Flow Mixing Suite or Flow Mastering Suite plug‑in collections but, as it also includes perpetual licences for 25 of the plug‑ins from the Mixing Suite, you can make full use of the Flow Studio hardware without needing a subscription. So, if you like to keep moving when mixing and, initially at least, avoid getting lost in too many details, might Softube’s Flow Studio keep your mix workflow flowing?

It’s Flow Time

Softube’s Flow Mixing Suite and Flow Mastering Suite provide some serious plug‑in firepower and the plug‑ins within these collections can be used individually within your DAW. However, both suites also share a concept; Flow presets. These are essentially preconfigured signal‑chains build by combining individual plug‑ins and aimed at a specific mixing or mastering task. These Flow presets are loaded into a dedicated ‘mothership’ plug‑in — either the Flow Mixing Suite plug‑in or the Flow Mastering Suite plug‑in — allowing the user to access all of the individual plug‑ins within the Flow’s signal chain from within a single plug‑in UI. It should also be noted that, currently at least, the mothership plug‑in is a Softube‑only environment; any favourite plug‑ins from other developers can’t be used within the Flow concept.

However, the additional (and, in use, rather impressive) twist is that the mothership plug‑in features a set of eight macro controls. Each macro control is preconfigured to target one (or more) key parameters within the loaded signal chain. With just the twist of a macro control or two, you can therefore adjust the most important parameters within the Flow to quickly shape the sound of your source audio. As a means of getting your key mix elements from zero to hero, this can be a very effective and efficient process.

Multi‑level Macros

In essence, the Flow Studio’s main purpose is to serve as a dedicated hardware controller for that macro‑based Flow concept. Most obviously, it does this by providing the user with hands‑on control over the macro elements contained within the Flow plug‑in via four high‑quality rotary encoders (with the Shift button letting you toggle between macros 1‑4 and 5‑8). However, it also brings a further twist of its own via the larger rotary control — the Omni knob — as this serves as a master macro control for all the other macro controls. As you rotate this, whatever the processing intention built into a specific Flow preset might be, one control lets you quickly dial in as much, or as little, of it as your audio needs.

The Flow Mixing Suite plug‑in acts as a host within your DAW for the Flow presets containing the individual Softube plug‑ins within your signal chain.

Under the hood, these two levels of macro control are configured much like any sophisticated parameter modulation system, defining the direction, depth and range of parameter change that the full travel of a Macro might exert on the target parameter(s). And, while the Flow Studio ships with a collection of Flow presets to get you started, a Designer view within the Flow Mixing Suite or Flow Master Suite plug‑in lets you build your own presets based around any of the Softube plug‑ins you have access to.

What’s In The Box?

The Flow Studio measures 144 x 217 x 42mm and weighs 660g.

On first impression, Flow Studio maintains the high standard Softube have set with their Console 1 Fader and Channel controllers. Measuring a compact 144 x 217 x 43mm, it contains an impressive high‑resolution screen dominating the upper area, five touch‑sensitive rotary knobs — each with a ring of LED lights around it to provide positional feedback for the current control setting — arranged in the centre, and an array of nine buttons, many of which offer dual functions, laid out in the lower part of the surface. It feels well built and the rotary controls are very smooth in use. A high‑quality 2m USB‑C cable is included for connection to your host computer. Optional mounting stands available for the Console 1 Fader and Channel hardware also fit the Flow Studio if you prefer a somewhat steeper pitch to the control surface.

As mentioned earlier, the Flow Studio also includes perpetual licences for a collection of plug‑ins and the Flow Mixing Suite ‘mothership’ plug‑in. As shown in the ‘Provided Plug‑ins’ box, they include compressors, EQs, reverb, delay, tape, saturation, guitar/bass amp/effects and vocal tuning options. No additional plug‑in subscription is therefore required. During the review period, I initially uninstalled other Softube plug‑ins I normally have on my system so I could spend time with just this selection of plug‑ins. I did, however, subsequently reinstall the full complement of Flow Mixing Suite plug‑ins to see how the two products — Flow Studio and Flow Mixing Suite — work together.

Modus Operandi

Flow Studio offers three modes of operation; DAW Mode, Flow Mode and Detail Mode, and you can move between these via the three buttons located bottom‑right. Each of these brings up mode‑specific options on the hardware’s internal display.

The Flow Studio’s screen provides excellent visual feedback. From the top, in DAW Mode, Detail Mode, and a selection of Flow Mode examples starting with use of the Omni knob.In DAW Mode, Flow Studio lets you access a compact selection of controls within the currently selected track of your DAW project. These include the track’s fader (with the Omni knob), pan, up to three send levels, and solo and mute buttons. The display provides both VU and stereo LED input/output level meters for the selected track and, usefully, at the bottom of the display, compact text labels indicate what track parameter is linked to each of the rotary knobs.

This functionality is DAW‑dependent but, in Cubase, for example, it required no configuration and did not require an instance of the Flow Mixing Suite mothership plug‑in to be installed on the selected track; it just worked. Softube have details on their website explaining the exact steps required for a number of the more popular DAWs.

OK, so Flow Studio’s DAW Mode is perhaps not going to compete with a dedicated DAW control surface, but if this is your first hardware controller, for the sake of a quick press of the DAW Mode button, it’s a nice additional option to have, especially as all the rotary controls provide such a smooth and accurate response.

Once you have inserted an instance of the Flow Mixing Suite mothership plug‑in onto your selected track and loaded a suitable Flow preset into it (or created your own), both Flow Mode and Detail Mode let you control settings used within the Flow preset’s plug‑in signal‑chain. I’ll get to the macro‑based options provided by Flow Mode — which is the Flow Studio’s primary reason for being — in a minute. However, if you also want to use the hardware controls to dig deeper into the parameters offered by a specific plug‑in within your signal‑chain, then Detail Mode is where it’s at.

Tapping the Detail Mode button once gives you control over the first plug‑in within the signal‑chain. However, tapping for a second time brings up a list of all the plug‑ins included within the current Flow preset and you can use the Omni knob to scroll through these. As you do, for each plug‑in entry, your see up to eight parameters (shown in two rows of four; the Shift button toggles between the two rows) beneath the plug‑in name and, from this display, you can then use the four rotary controls to adjust any of these eight parameters. Tapping the Action button brings up any additional parameter rows for those plug‑ins within the list and you can then use the Omni knob to move between these. Finally, tapping the Detail button again brings a focused view for the currently selected plug‑in and provides you with additional visual feedback as you use the rotary controls to adjust parameters.

There are some additional elements to the Detail Mode workflow such as being able to bypass a specific plug‑in or mark specific controls as favourites. Inevitably, it does take some time for the various button navigation options to lock themselves into your muscle memory but, once done, if you do need to get hands‑on with finer details of a specific plug‑in, Flow Studio does provide the means to do it and the built‑in display provides plenty of useful visual feedback.

In The Flow (Mode)

Of course, the star of the Flow Studio’s show is Flow Mode. It’s here that the macro control concept of the Flow Mixing Suite mothership plug‑in meets the hands‑on control offered by the Flow Studio hardware. The plug‑in needs to be inserted on any track or bus within your DAW project upon which you want to apply some Flow‑based processing. Once done, however, everything else — selecting a track, loading a Flow preset, and adjusting that preset to shape your track’s audio — can be done entirely via the Flow Studio hardware. Yes, you can open the plug‑in window within your DAW and interact with settings via your mouse. Equally, you can press the OSD button (located on the left side of the hardware) and show the On Screen Display. This provides an additional ‘always‑on‑top’ floating window on your computer display that mirrors the hardware display content. You don’t get mouse control within this display, but the visuals can be useful if required.

Once in Flow Mode, pressing the Flow button again opens the Flow preset browser within the hardware’s display. The first two rotary knobs let you filter the preset list (for example, by instrument or application type), while the Omni knob lets you scroll up/down through the list. Once you find the preset you want, the Solo button selects and loads it into the track’s instance of the Flow Mixing (or Mastering) Suite plug‑in.

With a suitable Flow preset loaded, the real fun — and the real potential — of the Flow Studio comes to the fore. Whether you are targeting specific elements of the signal chain by controlling individual macro controls, or using the Omni knob to adjust all the macro controls at the same time to simply scale more (or less) of the Flow’s overall processing flavour, the Flow Studio hardware makes these track‑level mix moves super‑easy to perform.

As you make these adjustments, while your ears will undoubtedly be your primary guide, the Flow Studio’s colourful display gives you plenty of visual support. Twist an individual rotary control, and the display changes to give you specific feedback on the property you are adjusting. Twist the Omni knob and you can then see how all the individual macro controls are being scaled. It’s cool and colourful but, above all, helpful visual feedback. And, if you happen to have the mothership plug‑in open on your computer screen, then its display also reflects the moves you are making on the hardware.

The various buttons provide access to a number of other options. For example, the Track button allows you to use the Omni knob to scroll through, and then select, a track within your DAW to work on. The Bypass button (Track+Shift) bypasses the Flow’s processing on the selected track for easy A/B auditioning. Tapping the Action button lets you toggle the Omni knob through three modes of operation; Omni Mode (the default where it adjusts all the macros simultaneously), Output Volume (it controls the channel fader of the selected DAW track) or Input Volume (it controls the input gain into the Flow’s signal chain). In short, you can navigate the entire Flow‑based processing system entirely from the Flow Studio hardware.

Hands‑on Mixing

I discussed the workflow merits of Softube’s Flow concept in some detail when reviewing the Flow Mixing Suite itself in the March 2026 issue. I’ll not repeat that same discussion here except to underline that (a) Softube’s plug‑ins are excellent in their own right and (b) the macro‑based control system built into the Flow Mixing Suite’s mothership plug‑in is very elegantly executed; it allows you to make lots of corrective and creative mix moves very rapidly.

The Flow Studio hardware adds three obvious elements to an already an impressive workflow. First, whatever the mixing task might be, a little bit of hardware control goes a long way to making the process a more comfortable and more efficient experience compared to using a mouse. Second, once you embrace the macro‑based approach to applying signal‑chain adjustments, Flow Studio’s rotary controls take what the Flow Mixing Suite mothership plug‑in already offers and simply makes it much easier to exploit. And, third, via the Omni knob, it adds an even more streamlined ‘master macro’ approach to the process that means one control might be all you need to start shaping the sound of an individual track.

In practice, these elements combine to let you make some very powerful processing moves very quickly. For that first‑pass mixing stage where you are simply attempting to get all your tracks and busses into some sort of shape, the Flow Studio and some suitable Flow presets can easily get you 80 percent of the way there with considerably less than 20 percent of the effort. You might then need to dig into the details on some tracks, either via the Flow Studio’s Detail Mode or with your mouse, but as a means of getting your mix off to a flying start, the Flow Studio system can put in quite a shift. The assimilation time is minimal, but the mixing time saved can be considerable.

Studio Vs Suite

An obvious question for potential purchasers is whether the plug‑in bundle included with the Flow Studio hardware — and the associated Flow presets built using just those plug‑ins ­‑ provide enough options, or whether additional Softube plug‑ins (and perhaps a Flow Mixing or Mastering Suite subscription) are required to fully capitalise on the benefits the hardware can bring.

I was pleasantly surprised at how much I could get done based upon just the 25 plug‑ins supplied within the Flow Studio bundle. The Flow presets built upon just this collection provide plenty of options while also letting you to start building your own custom Flow presets tailored to your specific needs, whether that’s for tonal balance, dynamics, saturation or ambience, or for handling your basic amp and effects requirements with any DI guitar/bass tracks.

Don’t get me wrong, though; given the choice, I’d happily pair a full Flow Mixing or Mastering Suite subscription with the Flow Studio. The additional Flow presets and plug‑ins it provides would not leave many obvious gaps in your processing arsenal for which you might need to look elsewhere.

Who’s It For?

So, who will the Flow Studio suit? And, on the flip side, who might it not? There are three obvious tick boxes to consider here. First, are you willing to embrace (or have you already) the Softube plug‑in ecosystem for your core mixing tasks? Second, is a more hands‑on approach to mixing an attractive prospect? Third, is a macro‑focused approach to controlling your core mixing moves something that appeals?

I think the last of these is particularly significant and will, essentially, determine the real appeal of the Flow Studio to any potential purchaser. Given the high quality of the hardware, and the broad coverage provided by the included plug‑in bundle, there is very little to criticise here in terms of product value. Personally, I see the attraction of the multi‑level macro control that Flow Studio can bring to my initial mixing workflow. It’s fast, efficient, very tactile and very effective, and it would absolutely suit the way I like to make my first pass of a mix. But, if you are the kind of mix engineer who prefers to deep‑dive into the specific settings of each plug‑in within your signal‑chain, and particularly if you like to do that with plug‑ins drawn from a number of different developers, then that’s a perfectly valid position and, if so, Flow Studio is perhaps not such a compelling choice.

It’s an impressive combination of hardware and software that attempts to get you into the creative zone with your mix and let you move swiftly.

Softube’s documentation describes ‘flow’ as a ‘mental state of immersion’ and I think that concept underpins what the Flow Studio is about. It’s an impressive combination of hardware and software that attempts to get you into the creative zone with your mix and let you move swiftly — and without distraction — through the bulk of the work. The three tick boxes above all duly noted, I think the Flow Studio achieves that underlying aim with some considerable style and finesse. This is perhaps not a product that will suit everyone but, if you like to get immersed in the flow of your mix and not get distracted by the technicalities of every processing choice, the Flow Studio delivers an elegant means to facilitate exactly that approach.  

Information

£339 including VAT.

www.softube.com

$399

www.softube.com

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