Best Reverb Plugin for Classical Guitar

Classical guitar performance is meant to be experienced in a natural space; the player, the guitar, the room, and the audience summon an ensemble and create a unique contract. As recordists, we aspire to capture such magical moments, but we don't always have the luxury to operate in fantastic-sounding spaces. As producers, we sometimes record in our homes or bland-sounding studios, in such occasions, the use of artificial reverb is unavoidable.

For a decade or so, I've been a happy user of 2CAudio's reverb plugins, Breeze at first and then Aether, as you can read in my post for the Three Essential Plugins for Classical Guitar. However, I recently got a MacBook Air M2 (review coming soon), and these plugins are not yet compatible with Apple's processors. Thus, although I'm still pretty satisfied with the results I got from both Aether and Breeze, I have to find their replacement.

Note: As I learned after starting this test, Logic can run x86-x64 plugins natively and without having to setup Rosetta. Possibly with a hit on the CPU, but this should only become appartent on more heavy projects that solo classical guitar recordings. This fact make the need to find new plugins a but less imminent.

After an initial market research, I downloaded trial versions of all plugins that caught my eye and are compatible with apple's silicon. Testing software with so many variables can be intensive, therefore I spent enough time with each plugin to understand its interface and try to make it work for my taste and needs.

The reverbs I tested this time:

Neunaber WET Reverberator
Strymon BigSky
Universal Audio Lexicon 224 Digital Reverb (Spark Native)
Universal Audio Pure Plate Reverb (Spark Native)
FLUX IRCAM Verb v3
Apple Chromaverb
RELAB RX480
RELAB RX480 Essentials
FabFilter Pro-R FLUX IRCAM Verb v3
LiquidSonics Seventh Heaven
TC Electronic VSS4 HD Native (Non-compatible with Apple ARM Processors)
2CAudio Aether (Non-compatible with Apple ARM Processors)
2CAudio Breeze2 (Non-compatible with Apple ARM Processors)

My final assessment of the usefulness of these plugins is asserted not only on sound quality, ιntuitiveness and adjustability play a minor but meaningful role.

My least favourite reverb plugins

No matter how much I tried, I couldn't make the Neunaber WET Reverberator Plugin sound decent enough for my uses. I wanted to like the sound, as the WET pedal, that the algorithm originates, is quite popular among electric and flamenco guitarists. In all settings, there is always some chorusing on the reverb tail that I couldn't remove, and the space doesn't sound realistic, natural or with a desirable sound signature.

The price of the WET Reverberator Plugin is reasonable, but considering that there are a few plugins at a similar price (especially during sales), besides the decent sounding free plugins included with most major DAWs, I cannot recomended it even for those on a tight budget.

Another plugin ported recently from a pedal with an almost cult-like following is the Strymon BigSky Plugin. I was looking forward to testing it, however the experience was underwhelming. Not only the sound quality of the Room, Plate and Hall algorithms was not on par with the other reverbs of my test, but the tweakability was also pretty limited. Perhaps the other algorithms included could justify the high praise and price, but for classical guitar, the sounds were not convincing enough. Thus, another hard pass unless you are looking for shimmer reverbs for your classical guitar.

The last of the three not-good-enough reverb plugins is Apple’s ChromaVerb, which is included in Logic's vast plugin collection. The UI is much more intuitive than the "pedal" plugins, and getting a usable sound was not that hard. As expected, the ambience created by the ChromaVerb pales in comparison to the most sophisticated reverbs of the test; it lacks finesse and sounds more like an effect than a realistic space. But given that this is a free option, the results were better than expected.

The good but not-for-me

Another plugin that seems to be loved by many producers is the LiquidSonics Seventh Heaven. LiquidSonics claims to reproduce the algorithms of the acclaimed Bricasti M7. I have never used the M7 in person, so I cannot confirm or deny this. What I can back up is that the Seventh Heaven has a rich and refined sound, and I can see why it is so popular. The interface is pretty modern and intuitive, I was able to get a sound I liked right away. After comparing it to some of the other plugins though, I concluded that it sounds a bit too polished and generic for my taste. It is worth noting that the Seventh Heaven is the only convolution-based reverb of the test.

Moving on, a reverb plugin that will satisfy those who want extreme control over how the space sounds is the FLUX IRCAM Verb v3. The Verb v3 creates the most realistic-sounding room recreation of the bunch, and could be perfect for film production or other uses that realism and accuracy are desired. In addition, the control the UI provides is pretty phenomenal. I needed some time to get to know how every parameter affects the sound, but after a while, the somewhat uncommon layout made total sense, and I was pleased by how much control the Flux plugin offers. Soundwise, the IRCAM reverb lucks a bit of musicality and elegance for solo classical instruments.

A utility reverb plugin

One of my favourite plugin developers is FabFilter. I really like how powerful their various plugins are, love the clean and pristine sound quality, and appreciate the modern and intuitive UI. I own their Mastering bundle and use it almost every day.

I downloaded the trial version of the Pro-R when it was released a few years ago and did enjoy the user interface and sound, but not enough to change the 2CAudio reverbs I have been using almost forever. This time, I got to play more with the Pro-R and even used it in the production of my latest release: 'Will Have Been'. It is a very intuitive and capable reverb plugin, not my favourite sounding of the bunch but very useful and easy to use. So, I'm debating getting it now or waiting for a sale, but FabFilter's Pro-R will definitely find its place in my collection.

Rent or own

A reverb plugin I was happy to see released in native format - without requiring the expensive dongle that is called Apollo - is Universal Audio's Lexicon 224 Digital Reverb. Universal Audio has the resources to create some great plugins, but some of the hype comes from the fact that they were only available through their DSP-powered interfaces. That was perhaps necessary a decade ago, but computers today are so powerful that this business model makes little to no sense. With the release of Spark Native, Universal Audio seems to have realised that.

The Universal Audio Lexicon 224 Digital Reverb sounds musical and manages not to get in a way. Besides, lots of attention has been given on the UI, which looks beautiful but is a bit limited. The Pure Plate reverb sounded perhaps even more musical, albeit less natural for solo classical guitar.

I liked both reverbs from Universal Audio, but if there is one thing I hate more than USB dongles is the subscription model for software - an argument against using Adobe apps as well. Now, $149,99 a year for all the Spark Native plugins is not so bad. But, considering that I don't have any use for any of the other plugins, I decided to cancel my subscription at the end of the trial period and reevaluate later.

Early reflection goodness

When I first got into recording, personal computers were not powerful enough, and native plugin offerings were pretty limited. For that, I used to own a TC Electronic Powercore unit and loved the TC VSS4 algorithm. The Powercore was much of a hustle later on for me to keep using it, and native plugins became capable enough, so I parted ways with it. TC Electronic released the VSS4 HD Native plugin, and although it is not compatible with apple silicon yet, including it in the comparisons can only be constructive.

The VSS4 HD sounds pristine and lush, with some of the most realistic early reflections. It makes any recording sound somewhat more three-dimensional. Oher algorithms may sound more pleasing for longer reverbs, but the VSS4 HD is hard to beat for short realistic reverbs.

Vintage vibes

One of the best-sounding reverbs of the bunch is the RELAB RX480 Dual-Engine V4. It is supposed to be sample-accurate dual engine recreation of the legendary Lexicon 480L. I cannot confirm or deny the claim as I never had the pleasure to listen one in person. The RX480 is truly stunning with its plush, thick sound. A more modern UI could make the RX480 more straightfoward, as the LARC-type graphic control would make more sense to those with experience with the original Lexicon units, but I could live with that. It is much more impreesive than the UAD 224 Reverb and sounds more pleasing to my ears. The Random Hall algorithm especially is impeccable.

Moreover, RELAB has a lighter version, the RX480 Essentials, which packs the same basic 480L sound with a less overwhelming UI and at a burgain price for what you get.

The familiar

I purchased the 2CAudio Breeze several years ago, then moved on to the Aether. I'm using both plugins it tandem sometimes; the Breeze for a more natural space and Aether for a thicker sound. Both plugins are exceptional, with first-rate sound quality and offer plenty of control. I was so pleased with this combination that I stopped looking for other reverbs. I somehow also missed trying the Breeze2 when it got released.

As it is obvious, I'm used to the sound of these plugins. I downloaded a trial version of Breeze2 to conclude this comparison. Both 2CAudio plugins sound admirable, with the Aether being the most versatile, especially for those who are also into sound design. But I was particularly surprised by the Breeze2. The placement of the solo classical guitar in space is very realistic and offers lots of depth. The Breeze2 sounds lush without sounding as much as an effect or too sterile as some of the other plugins.

Although it is not yet compatible with the Apple ARM chips, and perhaps there never will be. Given that I already had the first version, the update to the Breeze2 was inexpensive for me, so I didn't give a second though. Unfortunatelly, due a dispute at 2CAudio, the future of the company is currently uncertain. So, I cannot recommend either one, at least for now.

Some thoughts on convolution reverb

I've tried convolution reverbs in the past and had determined that they don't work for me, but I thought that this time might be different perhaps. In addition to Apple's Space Designer, I downloaded the Inspired Acoustics Inspirata Silver and HOFA IQ Reverb v2. As much as I wanted to like them, I never got them to blend well with the dry tone. Admittingly, impulse respneses sound very natural and realistic, but It always sounds like a cross-fade of room ambience and classical guitar layers than an instrument in a room. Furthermore, the IRs tend to get a bit weird whenever I am pushing them. I understand that the results rely on the specific IRs, but I get satisfying results with algorithmic reverbs to investigate convolution reverbs further at this time.

Conclusions

If who don't have a problem with subscriptions and might have uses for the other UAD plugins, the Spark Native is hard to beat. For a versatile reverb with a clean but superb sound, the FabFilter Pro-R ticks all the boxes. Lastly, for vintagey charachter and thicker reverbs, the RELAB plugins are outstanding.

For me, the Breeze2 will replace the original Breeze for realistic but musical sounding spaces, and the LX480 will replace the Aether for characterful reverbs. And, I’ll keep an open spot for the FabFilter Pro-R.