P42 Climax Line Amp


Pulsar  Modular P42 Climax is an innovative multifaceted powerstrip for tone shaping/coloration, saturation and conjures more of the idea of working with hardware. P42 Climax begins with the heartbeat of a hardware line amp, and ends on every single track because it has the cpu coverage to do so (more than 300 instances in a single session). Sculpt 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, but never intended to copy any single one! P42 Climax works magic on drum bus, snare, and of course the bass guitar. Inserting P42 on the 2-bus track, immediately opens up your mix and exposes hidden gems in your mix. With its Mid/Side processing and detailed metering (peak, RMS and LUFS) and Auto. Gain Compensation workflow, P42 fits nicely into your mastering signal chain.

Don’t get scared by the price tag- a comparable hardware unit for a single channel costs around $1,700. Check the Audio examples below as we compare P42 Climax plugin tone shaping against the Neve 1080, Studer A812 Tape recorder, WolfBox DI and other hardware devices.


  • Organic hardware-like feel & behavior.
  • Pulsar Modular signature Shelving EQ (Low & High).
  • Signature LPF and HPF 
  • 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.
  • macOS: AU, AAX and VST3 formats.
  • Windows: VST3 and AAX formats.
  • Linux LV2 format coming soon!


Audio Examples

Artist Reviews

Scott Weiser (AKA Jackal & Hyde)

Lunar Lander is INCREDIBLE! Realistic BBD Delay behavior.

Scott is responsible for some of the most head strong electrocore bass-bangers such as Dark Star, Go Bang, Beyond, This is the Sound of Underground and Bad Robot.

Marc Codsi

Extremely lush melodic plate reverb emulation. I use it when I want to add character to a sound.

Marc Codsi is a composer, multi-instrumentalist, record producer and film composer.

Jérémie Regnier

I am stuck on Lunar Lander plate reverb 3- so much cream – Wow!

Composer, producer and performer.


Supported Plugin Formats

Supported Operating Systems
macOS 10.12+
Windows 7+

Apple Silicon M1 Native and Intel CPU (Universal 2 Binary)

x64-compatible CPU

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM

Copy Protection
A one-time challenge & response over the internet. License works on up two separate machines.


Latest User Guide


For previously authorized computers

  • Official release. Compatible with Prev. version 2.
  • Dual GUI.
  • Many features you can check in the User Guide.


  • GCC is now a parameter ready for automation.


  • Real-Time Gain Compensation Calculation (GCC).
  • Extensive set of metering: Peak Hold, RMS, RMS Peak and LUFS values.
  • Additional M/S signal routing.


  • Updated GUI.
  • Disengage HP and/or LP Filters.
  • Updated preset management indexing.


  • HPF up to 500 HZ
  • AIR freq point variable from 5 to 12 KHz
  • Up to +12 dB DRIVE knob
  • Saturation is @ Input or @ output (currently at output)
  • Oversampling
  • Main out knob now goes to -24 dB
  • P42 works at any audio sampling rate.
  • Mix Dry/Wet now smooth transparent blending.
  • Smooth knob and slider movement.
  • Trial period- remaining days left.


  • Optimized GUI refresh rate, helps with DAW GUI metering redraw.
  • Improved movement of the dials and sliders with your mouse.
  • Hovering the mouse over a dial exposes its value.


  • AAX plugin for macOS is now working.
  • Extended the saturation slider to 150%
  • AAX on Windows still not ready. Next update.


  • This version has a non working AAX for macOS.
  • Fix phasing issues when inserting P42 on mono track for DAWs that support Mono tracks (Logic Pro, Pro Tools, Cubase)
  • Zero sample latency implementation
  • A Mix knob to blend in the Dry signal
  • A polarity flip switch.


P42 Climax Line Amp

40-Day Free Trial

To start your 40-day fully functional trial for 2 computers, Press the "add to cart" Trial button and complete the checkout. Follow the instructions you will get by email. No dongle required.

(53 customer reviews)

How do you get the Motown sound?  You will need the Wolfbox DI made in the late 60s and used by the recording studios at that time for the signature bass guitar sound and the soft electric guitar sound. The Wolfbox was driven by a Triad A-11J or A-12J, which are not produced any longer. This is what drove the legendary Motown sound. It’s the sound of James Jamerson, Dennis Coffey, Robert White, Joe Messina, and the Funk Brothers- Motown’s legendary in-house rhythm section.

P42 Climax extended functionality is able to nail the sound of a Neve 1080. The 1084 is one of the most revered hardware units ever designed. It sounds like a 1073, and it gives you that beautiful Neve sound thats so sought after.


  • EUR: € 224
  • TRY: 3,923 ₺


Customer reviews

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Based on 53 reviews
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Showing 5 of 53 reviews (4 star). See all 53 reviews
  1. Luis Luis A Rivera

    I was very skeptical after watching several Youtube reviews and not hearing much improvement in the demo sound. I downloaded the demo of the plugin last week and it really sounds amazing! It just brings a track to life! You notice it especially when you have it on and then bypass it and everything falls flat without it. Detail is kept while adding a really nice saturation! Highly recommend!

  2. André Luiz Salvador

    I like the P42 Climax. I compared it with other similar plugins. I think the difference is how easy it is to get a great sound with P42. With few adjustments, everything sounds good. Also noteworthy, is the fact that the plugin is CPU-friendly. Is the amount charged fair for these attributes? I think not; but then it’s up to each one’s pocket. For me, who live in a country with a devalued currency, the acquisition was very difficult.

  3. Peter Martin

    So apparently there has been some “controversy” with this developer pertaining to his pricing structure and not wanting to bend to the common thread. This type of attitude is very much show cased in not just the P42 Climax, but as well as LunarLander and the sleeper – the P914 FFB. The developer takes the approach of creating professional tools at, a professional price, but a very generous non-crippled demo policy of 40 days.

    I’ll keep my review strictly to the P42, pricing controversy aside.

    Sound – hearing the evolution of the developer take a hands on approach to modifying the original design from other user reviews put this as a strong contender for daily tracking, channel work, or even on the master. Due to the generous demo period, non crippling audio dropouts or inability to save allowed me to really dig in and hear the alterations of the plugins development based from a lot of positive user feedback. I

    Once the ability to remove the HP/LP made me realize this can be a first insert tone shaper that doesn’t coat the sound in harmonics but becomes apart of the sound.

    There are many other excellent tonal shaping tools that I own (Kelvin, everything by Fuse, and many others), this can be used on every channel and actually when place as the first insert everything else down the chain generally operates better from a sonics perspective. The tonal shaping qualities really don’t leave much to be desired and can enhance, tame, dampen, or blow up (in a good way) pretty much any type of musical, atonal, rhythmic, or percussive sounds.

    The price tag you’d expect something that doesn’t sound like “fake harmonics” or a basic waveshaper, you expect a professional useful tool that you wouldn’t hesitate on using for anything you can throw at it from demos to well funded commercial projects.

    Speaking of speech, this is excellent on dialogue and vocals. Overdrive/distortion really either shines or falls apart concerning the human voice, the P42 holds it together.

    GUI – Compared to the other product offerings it really doesn’t feel like it fits from a graphical perspective and seems a bit gimmicky.

    Personally can’t stand things that take up precious real estate, and on the other token tools that don’t have any form of graphical user interface are just as obtuse. If you look even at the knobs of every other offering (the P914 and LunarLander) they’re beautifully done and compliment each other. Looking at the P42 the GUI in no way shape or form reflects the sound quality. Everything from the fonts, color scheme, the faux transistor graphic, to knobs that have no universal theme of values makes it very difficult to get to the point of initially learning the tool, and in use. I think the developer should stick to the theme and vibe he has going from his other product line (since they’re much better done). Considering the LunarLander’s GUI is awesome and completely conveys the visual aspect to the sonic shaping aspect.

    Overall – From a generous demo period, no compromise on the sonic vision, but still takes user feedback seriously, this is a developer to support. Professional tools may come at a professional price, and to the pearl clutchers on price that secretly love the sound but can’t afford it (I know times are tough for some of us), save your pennies or use many other available tools. Because not owning this won’t prevent you from making an amazing sounding production, it’s just that using this makes it a heck of a lot easier.

  4. herd2

    Interesting plugin which I might have completely ignored, mainly because of the high price, the gui and a few strange things surrounding its introduction. But things changed some and after spending time with it, using it is much more useful and fun than than I expected. The very generous demo demo policy and a discount will help me make a decision in the end.

  5. Murray Campbell

    The release of this product got off to a bumpy start in some online music forums. Once the heat died down, I started noticing some very positive comments. I thought, what have I got to lose, it’s a 40 day fully functional demo. Within minutes of trying the P42 I was impressed by the sound. It is very organic. It really can offer some subtle analogue sounding magic, brings things to life in a way that isn’t that common ITB. I started out with it on the stereo bus. Very nice I thought. Within a few hours I had it all over a mix I’m working on. Drums, bass, e-keys, percussion, guitars, busses, reverb sends. The more the merrier. The good thing is that it has pretty low CPU footprint, so you can use it a lot. The filters and shelves are very smooth and musical. The interaction between the Input and Saturation is great. The honeymoon period is definitely not over. I don’t go with the game changer idea, for anything. But the P42 is going to get a lot of use. It’s kind of a one stop shop, it can shape sounds very nicely. I simply enjoy using it and what it brings. Good to see the developer has been open to listening to user feedback. I hope it is going to work natively with M1 Macs sooner rather than later. I gave it 4 stars, why? Because, everyone else gave it 5 stars and I don’t want the developer to think the P42 is perfect. 🙂