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Equalizer/Preamp Plugin by Ignite Amps
Newer Version:
PTEq-1a has been replaced by: PTEq-X
PTEq-1a by Ignite Amps is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin and an Audio Units Plugin.
Windows XP/Vista/7/8 (32/64-bit)
Intel Pentium 4 or AMD Athlon XP
OS X 10.5
Intel processor with SSE2 instructions support
Copy Protection
My KVR - Groups, Versions, & More
50 KVR members have added PTEq-1a to 14 My KVR groups 60 times.
Not In Your MY KVR Groups
(or group limitation prevents versioning)
+14 in private groups

KVR Rank

Overall: 5396   4172   5061

30-Day: 7771; 7-Day: 12669; Yesterday: 10668

PTEq-1a is a digital emulation of a famous Vintage Program Equalizer. It has been developed to have all the characteristics of the original hardware, plus some additional features to increase it's 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 to CPU performances and real-time playability at the same time.

Main Features:

  • Three bands equalization with analog curve response.
  • Dynamic ECC88 / 6DJ8 SRPP tube stage analog modeling.
  • Additional selectable frequencies compared to the original design.
  • Mono / Stereo processing support.
  • Switchable Eq and Tube stage modeling for better CPU usage management.
  • Internal oversampling for aliasing reduction.
  • Variable Input and Output Level controls.
  • Double precision (64-bit) floating point internal processing.
  • Fully automatable controls.

Latest User Reviews

Average user rating of 4.00 from 1 review

Reviewed By wsteffier [all]
June 27th, 2014
Version reviewed: 7 on Windows

I have spent many hours testing and comparing the Ignite PTEq-1a EQ plug-in with other Pultec-style EQ plug-ins. I first matched the control settings on the PTEq-1a to various settings on other plug-ins, which included: (1) Pushtec 5+1A, (2) Noble-Q, (3) Noble-Qex, (4) SonEQ, (5) TDR VOS SlickEQ, and (6) NI/Softube Enhanced EQ in order to evaluate the tonal characteristics and qualities of the PTEq-1a. At least three (3) different setting sonic ranges were used in my evaluation for all the EQ plug-ins tested. I accurately matched all the plug-ins in this test and carefully listened through my system using both Neumann KH120A studio monitors and Sennheiser HD 25-1 II professional headphones. The audio test material included a combination of female vocal tracks, and nylon and steel string acoustic guitar tracks. In summary, the tonal qualities of the PTEq-1a could identically match that of the Noble-Q, Noble-Qex, Enhanced EQ and TDR VOS SlickEQ for the wide range of settings tested. Although the GUI is on the small side and less elegant to that of the purchased products, you certainly don't need to spend any money to obtain the same excellent results with the PTEq-1a. I could not get SonEQ to identically match the tone/quality settings of the other plug-ins in this comparison, as SonEQ is just somewhat different, but nevertheless excellent. However to my surprise, the Pushtec 5+1A EQ plug-in was somewhat magical in this comparative test exhibiting certain "air-like" qualities above all the rest. On the flip side, the Pushtec 5+1A was complicated and timely to set up and does not have an output gain control making it even more difficult on recorded tracks without ample headroom. Conclusion: you should most definitely have a copy of the Ignite PTEq-1a plug-in in your studio arsenal.

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Comments & Discussion for Ignite Amps PTEq-1a

Discussion: Active
14 November 2012 at 9:09pm

wow, for a free plugin this is terrific! I tested it with Softube's and OverToneDSP's and despite the fact that Softube sounded a bit more musical than the other two this one is definitely NOT a cheap crap emulation. thank you for that.

18 November 2012 at 3:05pm

i ran this against the PSP NoblEQ and it compares very well - if you need a good pultec clone (and who doesn't?) and don't want to shell out for a commercial offering then the fact that this is free and 64Bit you'd be mad not to have this excellent plugin in your toolbox

25 November 2012 at 6:12am

Dynamic ECC88 / 6DJ8 SRPP tube stage analog modeling. This Pretty Good For Stage Sound.

27 November 2012 at 8:35pm

there is a bug where if u cut at 40hz or 60hz, the curve does not change. tested it multiple times and same result, win VST 2.4 version

Wild Hades
Wild Hades
29 November 2012 at 1:09pm

Make sure to have the latest version (1.0.1), because that was one of the bugs I've fixed on the update.

29 November 2012 at 4:52pm

I'm talking about the latest 1.0.1 version.

Wild Hades
Wild Hades
29 November 2012 at 8:09pm

I can't replicate the issue in neither 32 or 64 bit version.
What version are you using? Which DAW? How are you analyzing the plug-in?

29 November 2012 at 8:52pm

x86 version, multiple hosts. The thing is, Im using my mousewheel. Normally, it takes two scrolls of the wheel to move between successive points (i.e. from 20hz to 30 hz, 30 to 45 etc.). However, from 45 to 60, the gui pointer moves on the 1st scroll, whereas the actual value(frequency) changes on the second scroll. I saw it just now, when I loaded the eq again to confirm your findings. Still, a bug though ;)

Wild Hades
Wild Hades
29 November 2012 at 9:35pm

Oh, my apologies for not testing the mousewheel behaviour, then!
Nice catch, I'll try to understand what's going on.

29 November 2012 at 9:38pm

I like your responsibility despite it is freeā€¦

30 November 2012 at 2:30pm

Thanks for this. I like the sound of it!

1 August 2017 at 5:44pm

Note 'this has been replaced by the PTEq-X'


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