Brainworx Mixing Month Plugin Sale (3): Mäag Audio EQ4, SPL Transient Designer Plus (~3/31, $31.90)

Hey there! I’m Jooyoung Kim, an engineer and music producer.

This month, Brainworx is holding their Mixing Month sale, featuring six plugins at a discount:

  1. Shadow Hills Mastering Compressor – Compressor
  2. Shadow Hills Mastering Compressor Class A – Compressor
  3. Black Box Analog Design HG-2 – Saturator
  4. Black Box Analog Design HG-2MS – Saturator
  5. Mäag Audio EQ4 – EQ
  6. SPL Transient Designer Plus – Transient Shaper

Following my last post, today I’ll be introducing the Mäag Audio EQ4 and SPL Transient Designer Plus.

As I’ve mentioned before, I personally bought and use 1, 3, and 5. For this round, I received NFR (Not for Resale) licenses for 2, 4, and 6 from Brainworx via Plugin Boutique.

If you purchase through the links in this blog, I’ll earn a small commission, which really helps me keep going—so thank you!

Let’s dive in!


5) Mäag Audio EQ4 – EQ

The Mäag Audio EQ4 is a plugin recreation of the iconic EQ4 hardware from Mäag Audio. I’ve mentioned this EQ a few times in my mixing basics series, and its standout feature is the AIR BAND.

Just loading the plugin already shapes the frequency response a bit—it’s slightly bumpy, right?

Here’s what happens when you nudge up the 20kHz band. This EQ excels at lifting those ultra-high frequencies to bring out a pleasing “air” in your mix.

I often choose between this Mäag EQ4 and Slate Digital’s Fresh Air when I want to give vocals that shiny, polished feel—it depends on the track. There’s no harmonic distortion here, which keeps it clean and super easy to tweak. That’s why I highly recommend it. Honestly, I love this vibe so much I keep thinking about getting the hardware version too… haha! If you grab it during this sale, I’m sure you’ll find plenty of uses for it.


6) SPL Transient Designer Plus

The SPL Transient Designer Plus is a plugin inspired by the TD (Transient Designer) module from the discontinued SPL RackPack, a 500-series rack format.

Photo: RackPack 8

It’s incredibly simple to use:

The Attack knob boosts or softens the attack phase, while the Sustain knob boosts or reduces the sustain phase. That’s it!

Below that, the Link button decides whether it processes stereo channels together or independently. The Limit button adds a limiter to prevent clipping if the attack gets too aggressive. And Parallel Mix? Well, that just blends the processed signal with the dry one.

The Side Chain Filter lets you use a sidechain signal to trigger changes in the original source’s transients—think of it like a compressor’s sidechain. Hit the SC ON button to activate it. By default, it uses an Internal Side Chain, copying the input signal and applying a filter. You can press SC SOLO to hear what’s being used as the trigger. The SC EXT button switches it to an external sidechain signal instead.

For composers or engineers like me, a transient-shaping plugin like this is a must-have. A great composition or mix depends on instruments locking together just right. You can’t always achieve that by simply sliding tracks around in your DAW.

I’ve got transient tools from Sonnox, Metric Halo, Native Instruments, SPL, iZotope, and more in my collection. This one’s another solid option—pick it up during the sale, and I bet you’ll use it all the time.


That wraps up my coverage of this month’s Brainworx sale. See you in the next post!

Brainworx Mixing Month Plugin Sale (2): Black Box Analog Design HG-2 (~3/31, $31.90)

Hey there! I’m Jooyoung Kim, an engineer and music producer.

Today, I’m picking up where I left off to talk about more of the Brainworx plugins on sale this month:

  1. Shadow Hills Mastering Compressor – Compressor
  2. Shadow Hills Mastering Compressor Class A – Compressor
  3. Black Box Analog Design HG-2 – Saturator
  4. Black Box Analog Design HG-2MS – Saturator
  5. Mäag Audio EQ4 – EQ
  6. SPL Transient Designer Plus – Transient Shaper

In this post, I’ll be diving into the Black Box Analog Design plugins from that list—specifically HG-2 and HG-2MS.

As I mentioned last time, I personally bought and have been using 1, 3, and 5. For this round, I received NFR (Not for Resale) licenses for 2, 4, and 6 from Brainworx via Plugin Boutique.

Also, if you purchase through the links in this blog, I’ll earn a small commission, which really helps me keep going—so thank you in advance! ㅜㅠ

Ready? Let’s get started!


3 & 4) Black Box Analog Design HG-2 and HG-2MS

Click image to purchase Black Box Analog Design HG-2Ms

When I tested these two, I noticed that with the same parameter settings, their responses are pretty much identical. The differences are outlined in the manual, but since they’re so similar, I’ll explain them together using the HG-2MS as the reference point.

First off, these plugins are recreations of the HG-2 hardware from Black Box Analog Design. As you’d expect, it’s all about those glorious vacuum tubes front and center. The HG-2 uses a combination of pentode and triode tubes, running your signal through both for that signature tube saturation—that’s the core of what this hardware (and plugin) is about.

It also has an extra triode tube you can blend in. The original hardware’s signal routing looks something like this:

The output stage features a Sinemag transformer, while the parallel saturation path uses a pair of 12AX7 triode tubes.

Looking at the parameters, the “Saturation” knob on the far left controls the amount of parallel saturation. The IN/OUT button toggles whether this parallel processing is active, and the ALT TUBE button switches the tube manufacturer for the parallel saturation path, altering the harmonic distortion character.

Even if you turn off the Saturation knob, the signal still passes through the pentode and triode tubes in series, so this is a piece of gear (or plugin) that’s inherently heavy on saturation. That means if you set either Pentode or Triode to 0%, you’ll get no sound at all.

Let’s break down how it works:

Photo: Frequency response—Default state, Saturation In, Alt Tube pressed, from top to bottom

This shows the frequency response in the default state, with Saturation turned on, and with Alt Tube engaged.

Photo: Frequency response—Dark vs. Bright calibration, from right bottom

Here’s the response with the Calibration knob set to Dark and then Bright.

Photo: Frequency response—Air Amount at 100%

This is with the Air Amount cranked to 100%.

Photo: Harmonic distortion—Default state, Saturation In, Alt Tube pressed, from top to bottom

These show harmonic distortion in the default state, with Saturation on, and with Alt Tube pressed. You can see the distortion really jumps when you add parallel saturation—it’s noticeable in the harmonics, and you can hear it too; the overtones come alive.

Photo: Default state vs. Saturation In, left and right

Interestingly, even though this isn’t a compressor, it starts to subtly compress when the input gets loud enough. The left is the default state, and the right is with parallel saturation active.

Now, these parameters let you shape how the parallel saturation sounds. Hit the Solo button, and you can isolate just the parallel saturation signal.

Photo: Frequency response by parameter—High Pass, Band Pass, Flat, Band Stop, Low Pass, from up to down

I measured the frequency response for each setting to show which frequency bands they affect—High Pass, Band Pass, Flat, Band Stop, and Low Pass.


Add colorful, frequency-selective tube saturation with M/S processing. Made by Brainworx, this is your mix bus’ best friend. Celebrated mix engineers like Dave Pensado, Bob Horn, and Jack Douglas rely on the sweet tubes and creamy-sounding transformers of the HG-2.

Personally, I like setting the Saturation to Flat, dialing back the Pentode a bit, and boosting the Triode. It gives a really nice sound—perfect for adding a touch of saturation at the final stage, like a sweet seasoning for your track.

If you’ve been thinking about a tube saturation plugin, this is a great chance to snag one at a discount.

That’s it for now—see you in the next post!

5 Brainworx Bettermaker Plugins Review (Bus Compressor, C502V, EQ232D, Passive Equalizer, BM60)

Hello! This is Jooyoung Kim, a mixing engineer & music producer.

Today, I’d like to talk about some plugins from Brainworx’s Bettermaker lineup:

  1. Bus Compressor DSP – Compressor
  2. C502V – Compressor
  3. EQ232D – EQ
  4. Passive Equalizer – EQ
  5. BM60 – Reverb

I originally planned to introduce these plugins last month when they were on sale, but things got a bit hectic, and now I’m sharing them when they’re not discounted… oops! 😅 Still, after testing them out, I can confidently say they’re really well-crafted plugins. If you’re interested, it’s worth keeping an eye out for a sale.

These plugins were provided to me by Brainworx via Plugin Boutique in NFR (Not For Resale) format. If you purchase through the links I’ll include later, I’ll earn a small commission, which genuinely helps me keep doing what I do. 😊

Ready? Let’s dive in!


1) Bettermaker Bus Compressor DSP

The Bettermaker Bus Compressor is a plugin recreation of Bettermaker’s hardware Bus Compressor. The original hardware allows digital recall and adjustments, and the plugin’s interface mirrors that design pretty closely.

The plugin’s parameters are similar to most compressors, but a few features stand out:

  1. You can listen to the sidechain.
  2. You can choose between Peak Level or RMS detection.
  3. You can dial in the amount of THD (Total Harmonic Distortion).

These three features are the heart of the Bettermaker Bus Compressor DSP. The sidechain splits the incoming signal, applies a filter, and uses the filtered signal as the key—pretty standard for bus compressors, but super useful.

The VCA THD feature adds harmonic distortion.

On the left, you’ve got the clean signal; on the right, it’s with THD applied. Looking at an oscilloscope, you’ll notice more changes—sonically, it starts to feel very mechanical. A subtle touch adds an edgy vibe, but crank it too much, and it feels overly distorted.

The frequency response is flat except in the ultra-low end, and the compression curve is smooth as butter. After messing around with it, I think it’s an incredibly well-made bus compressor. SSL-style compressors sometimes smear the low end or feel a bit hollow, but this one keeps the lows tight and solid without eating them up.

This one’s a winner. Out of the five plugins I’m covering today, it’s my favorite. It’s usually a steal during sales (probably around $29, so I’d recommend testing it out and grabbing it when it’s discounted.


2) Bettermaker C502V

This is another plugin modeled after Bettermaker’s C502V hardware. It offers three modes:

  • BM – Bettermaker Compressor
  • SG – SSL G-Compressor
  • DX – dbx 160 Compressor

Switching modes even changes the UI, which is a nice touch.

After testing, I could hear what each mode was going for. The SSL mode feels clean and polished, while the dbx mode has that signature gritty snap. The Bettermaker mode, though, sounds a bit different from the Bus Compressor DSP—it’s more forward and punchy, at least to my ears.

Here’s the harmonic distortion in BM mode with THD maxed out.

First is BM mode, second is SG, and third is DX. The differences in harmonic distortion and compression curves explain why this plugin sounds distinct from the Bus Compressor DSP. The C502V has a steeper knee, and it varies by mode.

I’d recommend this one too—it’s like having three compressor flavors in one. I especially liked the BM and DX modes. If you don’t already own a dbx-style compressor, this could be a solid solution.


3) Bettermaker EQ232D

This plugin recreates Bettermaker’s EQ232P MKII hardware—a super clean EQ with no THD, just pure frequency shaping.

It’s split into sections:

  1. A high-pass filter (HPF) for cutting lows.
  2. EQ 1, handling lows to mid-highs.
  3. EQ 2, covering mid-highs to ultra-highs.
  4. A P EQ section with Pultec-style frequency response.

Think of it as a mastering EQ (sections 1–3) plus a Pultec-inspired EQ combined into one.

On the left, I activated just the P EQ section and tweaked it a bit. The curve is as complex as you’d expect from a Pultec-style EQ. Harmonic distortion is pristine, and there’s no compression curve to speak of—it’s just an EQ, plain and simple.

It’s perfect for mastering when you need something ultra-clean. Definitely worth checking out.


4) Bettermaker Passive Equalizer

This one looks like a Pultec clone at first glance, but it’s actually Bettermaker’s unique take on a valve-based passive EQ, turned into a plugin. The hardware allowed computer-based recall, and the plugin follows suit with a similar UI.

The frequency response is close to the Bus Compressor DSP.

But as a valve design, the saturation is intense! Left is the default state; right is with Heat engaged.

Looking at the compression curve and oscilloscope, it’s far from flat.

Honestly, it feels more like a saturation box with EQ tacked on than a pure EQ. And as a saturation tool, it’s got charm—the Heat setting is pretty tasty.


5) Bettermaker BM60

The BM60 is a reverb plugin based on the Lexicon PCM 60. The original hardware had intuitive controls, and this plugin adds extras like Predelay, Width, Monofilter, and a Ducker, making it really versatile.

It offers two reverb types—Room and Plate—with Size and Reverb Time split into four steps. The parameters are straightforward, and the sound feels just as intuitive.

It’s great for light, easy reverb duties. Reverbs and delays are tough to describe with numbers, but I’d recommend this one as much as the Bus Compressor DSP.


They’re not on sale right now, but I’ve left a link to Brainworx’s plugins for future reference. Take a look when you get a chance!


Bonus: This month, if you buy anything from Plugin Boutique, you can snag either Audiomodern’s Freezr (a freeze sequencer plugin) or Heavyocity’s MicroFX Refiner (a bus processor plugin) for free. Don’t miss out when you shop!

That’s it for now—see you in the next post! 😊

Brainworx Saturators Overview & Sale (SPL Machine Head, SPL Vitalizer MK2-T, Elysia Karacter)

Hello everyone! I’m Jooyoung Kim, a mixing engineer and music producer.

Recently, Brainworx released a plugin emulation of the SPL Machine Head, a classic saturation device. Since it’s currently on sale, I thought it would be a great opportunity to introduce not only this plugin but also two other renowned Brainworx saturators: SPL Vitalizer MK2-T and Elysia Karacter.

I received an NFR (Not for Resale) copy of this plugin from Plugin Boutique for review. If you purchase through the links in this blog, I receive a small commission, which helps me continue my work. Your support is greatly appreciated!


SPL Machine Head

The SPL Machine Head was originally released in 1997 as a tape machine saturation simulator. Unlike traditional analog tape machines, this hardware version was fully digital, eliminating wow, flutter, and noise while allowing precise control over the saturation process.

Brainworx has faithfully recreated this in plugin form, bringing its unique sonic characteristics to the digital domain.

Controls Overview:

  • The Original version has 4 knobs, while the Ultimate version has 5.
  • Besides Input and Output levels, the main controls include Drive, High Frequency, and Low Frequency.
Left one is original, right one is ultimate

In the default state, it slightly boosts the high frequencies and enhances third-order harmonics.

Left one is original, right one is ultimate

When increasing the Tape Speed, an actual tape machine would typically alter the frequency response by rolling off both low and high frequencies. However, in this plugin, it seems to achieve a similar effect by adjusting volume and high-frequency slope.

Key Takeaways:

  • Functions as an EQ (HF knob boosts/cuts highs, LF knob boosts/cuts lows)
  • Adds third-order harmonics for natural saturation
  • Slight compression effect at higher input levels

Compared to other saturators I’ve used, the effect is subtle and very natural. I find it particularly useful for enhancing high frequencies, similar to the Maag EQ4 or Baxandall EQ.

🔹 On Sale Until April 22 🔹

Plugin Alliance plugins typically see deeper discounts about a year after release, so if you’re not in a rush, you can wait for an even better deal.

🔹 Recommended Master Bus Settings: 🔹

  1. Ultimate mode
  2. Drive at 0.5
  3. High Tape Speed On (30 IPS)

SPL Vitalizer MK2-T

The SPL Vitalizer MK2-T is a tube-based saturator with versatile tone-shaping capabilities.

I once debated whether to buy this hardware unit or another compressor. I went with the compressor, but the Vitalizer remains an incredibly flexible tool.

The SPL Vitalizer offers four main processing areas:

  1. Drive
  2. Bass & High-Frequency Control
  3. LC (Inductor-Capacitor) Filter-based High Shelf EQ
  4. Stereo Expander

Control Breakdown:

  • Drive: Determines how much effect is applied, not just input gain.
  • Bass (Soft <0> Tight):
    • Soft: Boosts overall bass
    • Tight: Slightly reduces overall levels while enhancing only the bass region.
  • Compression: Works only on the bass frequencies, with automatic Threshold, Attack, and Release settings. The Compression knob adjusts the ratio.
  • Mid-Hi Tune: A shelving EQ for the mid-to-high range.
  • Process: Controls the overall amount of bass, compression, and mid-high tuning applied.
  • LC-EQ: A high-shelf EQ using LC circuits.
  • Stereo Expander: A stereo enhancement tool.

Initially, the controls may feel unfamiliar, but once you get used to them, you’ll find many creative applications.

This plugin goes on sale frequently, so check out the demo before purchasing!


Elysia Karacter

The Elysia Karacter is a highly regarded hardware saturator, now available as a plugin.

It features automatic oversampling:

  • 4x oversampling for sample rates below 50kHz
  • 2x oversampling for sample rates below 100kHz
  • No oversampling for rates 100kHz and above

It also includes MS mode, Turbo Boost mode, and FET Shred mode.

On the left, we have the default settings, while the right shows the FET mode, which emulates the classic “Smile EQ” curve.

⚠️ Caution:

  • If driven too hard, it automatically compresses the signal.
  • This isn’t standard compression but rather an emulation of analog clipping.

Increasing the Drive lowers the compression Threshold, so careful gain staging is crucial.

Color Knob:

  • Turn left: Boosts ultra-low frequencies (5–50Hz)
  • Turn right: Boosts overall low frequencies (below 100Hz)

I love the saturation in FET mode, but due to its aggressive nature, I recommend placing gain plugins before and after it to control input and output levels.

This plugin also goes on sale frequently, so keep an eye out!


Plugin Alliance vs. Plugin Boutique Pricing

Recently, Plugin Alliance started adding a 10% tax at checkout. Because of this, Plugin Boutique often offers a better deal, especially considering their loyalty points and free plugins.


That’s it for today’s review! Hope this helps you decide which saturator fits your needs.

See you in the next post!