Log InCreate An Account
  1. Plugins
  2. »
  3. Pulsar Novation
  4. »
  5. P42 Climax Line Amp
  6. »
  7. Details

P42 Climax Line Amp

P42 Climax Line Amp
P42 Climax Line Amp by Pulsar Novation is a Virtual Effect Audio Plugin for macOS and Windows. It functions as an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
System Requirements
Win8 and above
System Requirements
Sierra and above
Copy Protection
Key File
My KVR - Groups, Versions, & More
8 KVR members have added P42 Climax Line Amp to 3 My KVR groups 9 times.
Not In Your MY KVR Groups
(or group limitation prevents versioning)

KVR Rank

Overall: 388   311   385

30-Day: 494; 7-Day: 646; Yesterday: 594

Pulsar Modular P42 Climax is a line amp emulation for tone shaping/coloration, saturation and conjures more of the idea of working with hardware. Scalp your perfect sound whether processing a single instrument, grouped tracks, the 2-bus or even when mastering. The sound is simply... unbelievable.

Don't underestimate the few parameters in P42 Climax. It is chameleon like, able to assimilate many different coloring hardware devices. P42 Climax can conjure all the subtle non-linearities distributed throughout the signal path of the assimilated device with its few parameters. Our signature LPF gently shave the sharp, harsh transients and convert them to pleasant harmonic content without sounding dull. The combination of the LPF & Low Shelving EQ will bring that "oomph" to your low end without mudding the sound.

Don't get scared by the price tag- a comparable hardware unit for a single channel costs around $1,700. Pulsar Modular does not release a product if it is not in par or better than its hardware counterpart. Check the Audio examples below as we compare P42 Climax plugin against Neve 1080, Studer A812 Tape recorder, WolfBox DI and other hardware devices.


  • Organic feel & behavior.
  • Pulsar Modular signature smooth Shelving EQ (Low & High) + Air.
  • Signature LPF and HPF (2 types: Rev A & Rev B).
  • Tube-like odd harmonics saturation slider.
  • Super low CPU tax and zero sample latency.
  • Works with Mono, Dual Mono or Stereo signal.
  • All parameters are exposed to your DAW for automation.
  • AU, AAX and VST3 formats (OS X & WIN).

Latest User Reviews

Average user rating of 4.62 from 13 reviews

P42 Climax Line Amp
Reviewed By Eliebashkow
October 23rd, 2022

I downloaded the trial and was blown away. Some of the best ITB saturation I've ever heard. And the support team is friendly and responsive.

Read Review

P42 Climax Line Amp
Reviewed By lriv5
February 26th, 2022

I was skeptical about this plugin. I downloaded the demo and I have to admit, I'm blown away! I compared it to all my other saturation plugins, but none achieve that nice saturation like P42. It manages to color the sound and give it so much energy without losing detail or sounding thin. You simply have to demo it and I think you'll be convinced as well! A must have plugin that I'm hoping to buy soon after the demo period is over.

Read Review

P42 Climax Line Amp
Reviewed By saxophonick
October 10th, 2021

As soon as I inserted the plugin, I was pretty impressed.

At my studio we work a lot with subtle saturation for tracking, doing so I get to use a diverse array of preamps, from vintage tube preamps, 60s/70s transformer-based, European, American up to more modern gear.

As I was impressed upon listening to the P42, I checked to see if it wasn't the init setting that was louder than my unprocessed material, which is a trick too often seen and heard. But no, peak levels were similar, but I could hear a beefing up of the low end, more density in the sound from the saturation compression and harmonic colouration. Also, transients didn't get butchered but so slightly sweetened.

Whatever track or source material you're working on, boosting the saturation slider emphasises the aforementioned effect on the sound and it takes quite some action before the sound breaks up. When it does it sounds sweet.

I must say that while I give it 5 stars for the sound, which matters most, I would have given less for the GUI which at first sight gave me a « made with Synthedit » déjà vu of when I started out with free plugins, associated sometimes with less reliable ones.

However, in the week that I've been demoing it, sometimes with many instances it has been rock solid, not a glitch.

While priced a bit strong, it works on a broad spectrum of material and with the available controls can be setup for finesse or scorching hot sound.

Definitely worth trying.

Read Review

P42 Climax Line Amp
Reviewed By Omkar
October 10th, 2021

First off for the anti dongle fraction: no dongle, no dongle software required.
Second for the anti c&r fraction: it is c&r.

If you're still interested, there's a 40-day fully functional trial for 2 computers.
Enough time to consider the individual pros & cons.

Price tag is highly anti-cyclical, so it must bring something on the plate ...
and it does.

It is a riddle to me how an emulation can go that far
to appear so true and authentic vs the original sound
within a fair amount of usage (can of course "destroy" the sound).
As a regular user of AA plugins I am pretty surprised by the quality of the P42
and welcome it's capacities frankly missed in AA land.

P42 doesn't force the sound into it's predetermined routines,
rather goes with the given sound and enhance what's there.

Maybe that's what hw units did back in the days,
I cannot judge that but I had the impression it must have been like this.
To call it a preamp may be right when we talk about those "back in the days" units
otherwise it is so flexible one can easily say
it is also a sound shaper, a distortion box, an enhancer and what not.

All that definitely in a quality unheard before, so 5 stars all the way.

Read Review

P42 Climax Line Amp
Reviewed By idoru97214
October 10th, 2021

I did not think I would ever see myself spending what this cost on any plugin - honestly. I'll start with that. But after seeing a lot of positive comments on a forum I frequent, I decided to download the demo.

My experience with this plugin was immediate and unequivocal. In my opinion - and this is so far, who know what the future holds - this is the best EQ/saturation product on the market today. The sound is dynamic and "alive" in a way I honestly have not heard ITB (though I think Acustica comes close - I love Acustica).

I have, own, and use saturation from Tone Projects, Goodhertz, Softube, Kush and many of the major players in the field, and there are some great ones. This one - I feel - is alone in its class at this point. Not that it is a simple saturator, it isn't. It's a tone shaper, and I would argue, has such a wonderful and varied spectrum of possibility that it is a tone swiss-army knife while also imparting some saturation and brings sound alive in a way few ITB offerings even come close to.

So, yes, it's a whole lot of money for any one digital tool. I had a hard time with that. I would suggest downloading the trial and work this bad boy out. Push it, do dual mono if you can. Then try to not buy it.

Read Review

Comments & Discussion for Pulsar Novation P42 Climax Line Amp

Discussion: Active



11 November 2021 at 5:55pm

The first plugin which gives me THAT REAL TRANSFORMER MOJO. At last.

I have tested all saturators and no plugins came close to P42.

Using it to fatten kick and all busses and master bus.


Cons are GUI (not my cup of tea) and price (but unique algorithm is worth this price IMHO, just compare it to the real deal).

Please log in to join the discussion