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Pay your way: Own the SPL PG today for $99.99 or Rent-To-Own with 4 automatic monthly payments of $24.99 in our new PA Megastore. Access the plugin NOW and receive the perpetual license after your final installment via email.

The king of parametric EQs
The PQ Mastering Equalizer is a fully parametric, dual-channel five-band equalizer, based on SPL’s pioneering 120V rail technology. Able to switch between constant and proportional Q modes with the push of a button, this kind of circuit has not yet been achieved in any other analog equalizer.

Designed for precision performance
Each of the five bands of the PQ can be independently activated, deactivated, or switched between Constant Q and Proportional Q modes for even more targeted cuts and boosts. Thanks to the “1/4 Gain Switch”, you can reduce the range of the EQ from +/-20 dB down to +/-5 dB cut or boost to easily perform the small corrections common in mastering. And, with the detented potentiometers, precise settings are easy to dial in.

Now improved with plugin-only features
Brainworx’ familiar “Extra Unit” adds features to this legendary EQ that cannot be found on the original analog units. This retractable module includes Tolerance Modeling Technology, M/S Processing, Mono-Maker, Stereo Width, THD, Auto Listen for all five bands and more, providing everything you need in the modern digital domain.



Exacting emulation of the original analog PQ mastering equalizer, approved by SPL

Fully parametric mastering grade EQ, that offers precision, flexibility and detailed musicality

Independently switch between Constant Q and Proportional Q for all 5 bands for more targeted boosts and cuts

BRAINWORX Plugin Only Features added to the BX Module

Brainworx ́ TMT inside: Tolerance Modeling Technology (TMT, US Patent No. 10,725,727) simulates channel-to- channel variances in electronic components for the most realistic analog sound in the box

Auto Listen - To more accurately position the filter in the frequency domain by isolating the effect of the EQ

Mono-Maker - Sums your low-frequency content to mono, giving you focused, punchy bass response

Stereo Width - To expand the stereo width of your tracks

Separate Mono Version - for using individual tracks such Kick Drum, Snare, Bass, Vocals, etc.

Scalable User Interface

Artist Presets

$99 - $349



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I think David from MixBusTV has the hardware unit and has it in high regards. I wonder how the software will stack up. 

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11 hours ago, PhonoBrainer said:

I see a tiny bit of room for more knobs on the left. Oh, wait, it's a knob.

Agreed. If it’s from PA the more knobs the better. 

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