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 PTEq-X by Ignite Amps is a Virtual Effect Audio Plugin. It functions as a VST Plugin, an Audio Units Plugin and a VST 3 Plugin.
Product PTEq-X
Developer Ignite Amps
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.1.0    Download Released
System Requirements
Windows 7/8/10 (32/64-bit)
Intel Pentium 4 or AMD Athlon XP
 1.1.0    Download Released
System Requirements
OS X 10.7
Intel processor with SSE2 instructions support
Miscellaneous Information
Copy ProtectionNone

PTEq-X is a digital emulation of 3 famous vintage passive program equalizers.

It has been developed to have all the characteristics of the original hardware, plus some circuit improvements and additional features to increase its versatility.
Every single component on the signal path of the real analog circuit has been taken into account and modeled in the best possible way to match the original sound, keeping an eye on CPU performance and real-time playability at the same time.
PTEq-X is meant to be used as a studio equalizer for tracking, mixing and mastering inside hosts capable of VST or AU Plug-Ins support.

Main Features:

  • Three different equalization modules with perfectly analog curve response even at highest frequencies.
  • Ignite Amps 3rd generation triode stage analog modeling for 4 different tube types.
  • Additional selectable frequencies for the PEQ1A model, compared to the original design.
  • Refined filters frequency precision for the MQ5 and HL3C models, compared to the original design.
  • Switchable equalizers and tube stage modeling for better CPU usage management.
  • Switchable linear phase oversampling for aliasing reduction.
  • Global input / output level controls.
  • Mono / Stereo processing support.
  • Double precision (64-bit) floating point processing.
  • Fully automatable controls.
  • Ignite Amps proprietary preset management system with bank file import/export functions.

Review PTEq-X Now!

Discussion: Active


21 February 2016 at 11:38amVospi

Excited to try it out, as Ignite Amps are cool guys. :)

22 February 2016 at 7:56amanti_phase

can't tame it so far)

6 May 2016 at 11:59amDrSense

Love it! It's a really fantastic piece of software except for randomly muting some tracks. Disabling/enabling solves that until it randomly mutes the track again. As this happened on a kick track first I assumed it was a peaking problem but no - completely random and not reproducable. Can work for hours and suddenly the kick is missing from the track..so I've got to switch off/on. But I wouldn't bother doing this if it wouldn't sound so amazing.

12 December 2017 at 8:59amWild Hades

Fixed in version 1.1.0.

27 May 2017 at 7:31amrichnbk

Best free TUBE EQ VST I have ever come across. Free Samples and Resources, Tips for Music Producers Click Here


21 August 2017 at 9:37amlocopoco

It's a great plugin. But needs some bug fixes.

The site still says hacked btw.

Back to the plugin, when i use this in ableton and reopen a project, some sounds are completely panned to the right or i get a huge amount of destortion. By swinging of the tube or fiddle around with the bandwidth knob fixes it. But when u have running several instances of this plugin its a mess to see which one of this plugin causes the problem.

Will there be a update of this one? It's by far the best pultec i ran into (free that is)

Can you please answer developer?

12 December 2017 at 8:59amWild Hades

Fixed in version 1.1.0.

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