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100 Plug-ins Every Engineer Should Try

Essential FX By SOS Team
Published June 2021

SOS writers pick their favourite plug‑ins and tell us what makes them special.

On top of the plug‑ins that come with your DAW, there are thousands of third‑party offerings. With so many on the market, just compiling a shortlist to demo can feel daunting. How do you even know which ones to consider? Well, you could do worse than ask the experts. Our writers at SOS have been testing and using audio plug‑ins since they were invented, and in this article we’re drawing on their experience to help you narrow down the field. We invited our regular authors to nominate their favourite effects and processing plug‑ins, and explain what makes them so great. (We’ll cover virtual instrument plug‑ins another time.)

This isn’t a ‘top 100’, and there are lots of good plug‑ins that aren’t included. But next time you’re looking for new ways to finesse your vocals, detonate your drums or massage your mixes, we hope this list will be the perfect starting point!

Dynamics Processors

Acustica Audio El Rey

I could have named any number of Acustica’s Acqua ‘dynamic convolution’ plug‑ins here because, when it comes to bottling the character of analogue gear, they sound better than anything else I’ve heard. I settled on El Rey as my pick because, of all the Acqua range, this arguably strikes the best balance between demands on the CPU, an elegant yet intuitive GUI and stellar‑sounding results. It has almost stopped me lusting after hardware tube compressors entirely... Matt Houghton

€269 including VAT.€269 (about $323).

www.acustica‑audio.com

Apple Logic Pro X Compressor

The bundled compressor in Logic’s impressive plug‑in suite doesn’t seem to get a lot of love, but I think it is a little gem. I suspect that some users fail to appreciate that the different ‘skins’ are far more than just a different look, but are in fact significantly different circuit emulations, each suited to different applications. Dave Lockwood

Included with Apple Logic Pro.

www.apple.com/logic-pro/

Boz Digital Labs Plus10dB

My preferred plug‑in for compression and limiting, this emulates the immense versatility, usability and sound character of the Audio & Design F760 Compex hardware compressor‑limiter, which was the go‑to outboard in my formative years. It can turn its hand to most things and always delivers great results. Hugh Robjohns

$99. Also included in +10dB bundle.

www.bozdigitallabs.com

Brainworx Shadow Hills Mastering Comp

Brainworx Shadow Hills mastering compressor.

I have 27 channels of hardware compression and believe hardware still holds the edge, especially when you’re hitting things hard. There are some exceptions, though, which are so good that they sit happily alongside my most esoteric outboard. This emulation of the Shadow Hills Mastering Compressor is one: it has a beautiful optical compressor plus a VCA stage, and is the perfect coloured mix‑bus glue. It compares wonderfully to my real Dual Vandergraph, which is saying something! JG Harding

$299. Also included in Plugin Alliance subscription bundles.

www.plugin-alliance.com

Cockos ReaGate

Cockos ReaGate.

I use gating for a lot of mixing tasks, and this one is so well specified that I’ve not bothered using anything else for years. The variable lookahead is great for high‑threshold gating of drums without losing the very start of the attack, and the flexibility of being able to set Wet and Dry levels (as well as polarity‑inverting the wet signal for ducking) is really handy. It can even squirt out a MIDI note when the gate opens, for basic sample‑triggering. Mike Senior

Included with Reaper. Also part of the free ReaPlugs bundle for other Windows DAWs.

http://reaper.fm/reaplugs/

FabFilter Pro‑MB

FabFilter Pro-MB

FabFilter’s revolution in plug‑in GUI design reached its apogee with Pro‑MB, which completely reinvented multiband processing. A beautifully elegant click‑and‑drag interface makes complex dynamic effects child’s play to set up and easy to visualise, and the innovative Dynamic Phase filtering eliminates the crossover artefacts associated with traditional multiband processors. Sam Inglis

£149 including VAT.$199.

www.fabfilter.com

FabFilter Pro‑L 2

I’ve used Pro‑L on every mix for several years now. A transparent, simple‑to‑use limiter, it allows you to manage the loudness of your mixes and masters with ease. I also like to use it as the last stage of processing on a drum bus, to shave off a few of the loudest transients before they interact with any master bus processing. Neil Rogers

£149 including VAT.$199.

www.fabfilter.com

IK Multimedia White 2A

Despite having only two controls, the LA‑2A compressor is a notoriously difficult piece of hardware to model. I can’t tell you whether IK Multimedia have truly nailed it, but there is something rather wonderful about their White 2A that I don’t hear in every LA‑2A emulation. Not only is it supremely smooth, but it somehow brings the midrange into focus in a way that helps almost anything sit in a mix. Sam Inglis

€99.99 including VAT.$99.99.

www.ikmultimedia.com

Joey Sturgis Tones Finality Advanced

The ‘advanced’ version of Finality is like an LA‑2A emulation on steroids. Like the original, at its core it’s incredibly easy to use and can achieve significant amounts of limiting without your audio turning to mush. However, the additional control options take it to another level, going from soft and subtle to punchy and aggressive. Great for drums, loud guitars or on a mix bus. John Walden

$69. Discounted to $39 when going to press.

https://joeysturgistones.com

Korneff Audio Pawn Shop Comp 2.0

One of those compressors that’s all about the grit and attitude it can inject — the sort of toy you don’t realise you’re missing until you have it! It has a distinctly analogue vibe, is really easy to use (until you dive into the uber‑tweaker’s second page!) and most importantly it sounds superb. Matt Houghton

$99.99.

https://korneffaudio.com

Oeksound Soothe 2

Oeksound Soothe 2.

Some people blame digital recording. Others point the finger at cheap and nasty capacitor mics, piezo pickups and untreated rooms. Whatever the reason, though, there’s undeniably a lot of harshness about, and there’s only so much you can do with conventional EQ to tame it. Enter Soothe, a plug‑in that quietly irons out all the jagged edges in your mix, leaving you free to worry about all the other things that are wrong with it. Sam Inglis

£179 including VAT.$219.

https://oeksound.com

Overloud Gem Dopamine

Using an undecoded Dolby A noise‑reduction processor as an effect adds a distinctive, glossy sheen that is hard to replicate in other ways. It’s a trick that has been neglected by plug‑in developers, but Overloud’s Dopamine absolutely nails it. Use it on backing vocals, pads, keyboard instruments and much more. As the name suggests, it’s addictive! Sam Inglis

£111. Discounted to £94 when going to press. Prices include VAT.$119.

https://overloud.com

Plugin Alliance SPL De‑Esser Collection

Sometimes you want something that just works, with the minimum number of controls to fiddle with. This is one of those! Set and forget. Dave Lockwood

$149. Also included in Plug‑in Alliance subscription bundles.

www.plugin-alliance.com

Softube Mike‑E Comp

Softube Empirical Labs Mike-E compressor.

I find it hard to get too excited about plug‑in compressors but this plug‑in, which includes a convincing emulation of Empirical Labs’ famous Distressor hardware compressor, can do most of the jobs that need doing in a mix. It also has some nice options for subtle, but very effective, soft clipping‑style saturation. Neil Rogers

$249.

www.softube.com

SKnote SoundBrigade

An unusual multiband dynamic EQ that can auto‑detect and compress frequency peaks in a signal. Great for taming harsh peaks in vocals or guitar‑solos, it can also take the edge off over‑spiky synth filter sweeps. It could do with a side‑chain EQ, to focus its action more readily: I often implement this by putting an EQ plug‑in with the required ‘side‑chain’ curve before it, and then another EQ plug‑in with the opposite curve after. Mike Senior

$29.

www.sknoteaudio.com

Solid State Logic Native Drum Strip

Who’d have thought you could do so much to manipulate a drum without a standard EQ? This might not be the first plug‑in that springs to mind when someone says ‘SSL’, but I love it — and if you like tight, punchy drums sounds, you will too. Matt Houghton

$129. Also included in the Complete Native Bundle subscription, $14.99 per month.

www.solidstatelogic.com

Sonnox Oxford Drum Gate

Sonnox Oxford Drum Gate

Gating drums is straightforward when you have a great drummer and a well‑recorded kit. When that’s not the case you need Oxford Drum Gate! It makes isolating individual drums so quick and easy, and the decay section lets you tailor which frequency range you want to allow to sustain and which to really clamp down on — a fantastic feature for toms in particular. Neil Rogers

$170.

www.sonnox.com

Sonnox Oxford Inflator

The ‘loudness war’ may be well and truly over for mixes, mainly thanks to the loudness normalisation of streaming delivery platforms, but there is still a place for things that make individual sources sound bigger or louder. Sonnox Inflator has been around for a long time now, and whilst there are dozens of plug‑ins that purport to do much the same job, I’ve not found one that does it quite so well, or with as many and varied applications. Dave Lockwood

HDX version £195. UAD version £135, discounted to £67 when going to press. Native version £115. Discounts of up to 40 percent when purchasing multiple plug‑ins.HDX version $264. UAD version $179, discounted to $89 when going to press. Native version $156. Discounts of up to 40 percent when purchasing multiple plug-ins.

www.sonnox.com

Sound Radix Drum Leveler

Sound Radix Drum Leveler.

There are times when you want drums to sound obviously compressed, and there are times when you just want the level of each hit invisibly adjusted to make them more consistent. That’s what Drum Leveler sets out to do, and it succeeds magnificently; besides which it’s also a spectacularly good gate, and a source of interesting and useful dynamic effects on things that aren’t drums....

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