ACQUA - Purple3.5



Purple-style EQ. The way it's supposed to be.

If you are tired of looking around the internet for the best-sounding, more-authentic and god-knows-what-else legendary passive EQ plugin collection then you have landed on the right page. First and foremost, Purple3.5 (VST2, VST3, AAX, and AU) is the result of the meticulous sampling of each one of the included machines. You get what the machine gives. Secondly, Purple3.5 is a collection giving you the highest number of different 'Purple-style' [pun intended] equalizers on the market - all in a single place - including some ultra-rare units we managed to find and sample for you. If you had to buy all of this in hardware form it would cost you over €10.000! Now you can have all this at a fraction of the price - and no, you're not going to compromise on the sound.



A Thousand Shades of Purple

You may be wondering why we introduced another M5 model into the Purple3.5 suite. Well, we challenge anyone to find two equal sounding units of this kind. The case of our M5 and M5V is a clear demonstration that two faithfully sampled versions of two different models can yield very different results. For this reason, when we had the original unit in our hands, from which we derived our M-5V, we were really pleasantly surprised and decided to offer you a new 'vintage' plugin, very colorful, given its tube nature, and immediate operation.

Plus, you get Purple3 H2, which is a passive tube EQ renowned for the ability to both boost and cut the low-end frequencies at the same time and to add an unmistakable analog flavor to your mix. This emulation is derived from a rare and vintage 2U single channel program EQ designed as a compact version of our Purple3 P1 with a more transparent character.

Purple3 H-2 differs from its bigger sibling however, in that it has different peak boost curves but the same Class-A output stage as the M5. Perhaps the most noticeable difference is the fixed bandwidth for the HF Boost and fixed high-cut at 12 kHz.

The Purple3 P-AA was sampled from a 'modern take' on this exquisite vintage classic, which can now be found in many studios worldwide. You will be surprised at the inherent differences between the two units.  There is no such thing as 'which one sounds best ?' This time. Purple3.5 gives you all the possible shades for your mix and YOU are going to be the ultimate judge.


A 'singing' filter

This simple yet powerful plugin completes the Purple3.5 'passive' EQ suite by adding a 12 dB/oct low-cut and high-cut filter, plus a preamp emulation derived directly from the Purple3 P-1.

Despite its simple operation, this is an ideal tool for tonal sculpting or achieving special effects. Thanks to carefully selected frequencies, you can easily create effects like telephone voices, sounds from 'outer space', and more by merely fiddling with a couple of knobs.

If you need to remove hum and rumble as well as hiss and distortion with minimum loss of content, this filter plugin is going to give you the most musical results possible.


The ultimate tube-based preamp module

This intuitive plugin is a powerful addition to the Purple3.5 suite, featuring a complete preamplifier section with 5 preamplifiers from the other standalone Purple plugins, completely revised and sonically enhanced to add all the depth and color of the tubes.

Purple 3.5 - What's new?

We have taken the Purple3.5 suite to a whole new level by adding a new powerful tool for better performance and sound quality. We have added:

1- The new Purple3 Pre to the suite containing Purple's main preamp emulations.
2- Oversampling knob that change the oversampling rate: OFF, 8x, 16x to improve audio quality.
3- Various plugin optimisations and graphic improvements.


Purple3.5 suite includes:

  • Purple3 P1 (Vintage tube-based, passive program Equalizer)
  • Purple3 PAA (Tube-based passive program Equalizer reissue)
  • Purple3 M5 (Classic mid-range tube EQ)
  • Purple3 M5V (Vintage classic mid-range tube EQ)
  • Purple3 H2 (Vintage single-channel tube EQ )
  • Purple3 HLF (Passive 12dB/oct high/low pass filter)
  • NEW Purple3 Pre (Preamp module)

Each plug-in included comes in a standard version and an alternative 'ZL' (zero latency) version which is suitable for use when tracking, at the cost of extra processing resources. For further details consult the user's manual in the Overview section.



  • Create a user account (if you do not have one yet) on our website
  • Download and Install Aquarius, our products manager, for either macOS or Windows.
  • Log in to Aquarius using your user email and password.
  • Type the product name in the search field inside Aquarius to find the '(trial)' versions of the product, then click on the thumbnail or the 'Install' button. This will take you to the product pages (the trial versions of a product are also visible in the 'related products' section on the right)
  • Select the right plugin format according to the DAW you are using and click 'Install.'
  • Aquarius will download, install, and authorize the trial product automatically.
  • Run your DAW. You're set!


For details about the installation/authorization process please refer to this page

Technical Specs

  • Available sample rates: 44.1kHz | 48kHz | 88.2kHz | 96kHz


References to other companies or their products or representation of those products do not imply any official endorsement of the software by those companies or any affiliation to those companies unless expressly stated otherwise.


ACQUA - Purple3.5

  • LIST PRICE: €199.00