Mars800Free by DiBiQuadro – The Classic. Tweakable. For Free [VST3/AU/AAX]

A forum for discussion of all things guitar!
Post Reply New Topic
RELATED
PRODUCTS

Post

For Windows and macOs [VST3/AU/AAX]

Introductory price is 00.0€
Regular price is 1M€


All links at: DiBiQuadroAudio

Mars800Free (Full)

Image
Image
Image



Mars800Free is a faithful simulation of one of the most iconic amp heads in rock history, capturing the essence of a powerful, single-channel amp with raw, unfiltered tone. Designed with EL34 power tubes, it offers the unmistakable bright, gritty, and punchy sound that defined countless classic rock and metal tracks.

With controls for Gain, Bass, Mid, Treble, Presence, and Master Volume, Mars800Free responds well to adjustments, delivering anything from a thick crunch to a searing lead tone. While it’s simple in layout, this amp simulation is powerful in sound, achieving a natural, organic distortion that’s clear and dynamic. Loud and unapologetically bold, Mars800Free is the perfect choice for players who crave an authentic rock sound with vintage grit and modern reliability.

Image

Non-Plus-Ultra Preamp
Non-Plus-Ultra Preamp represents the perfect approach to circuit modeling. Mars800Free preamp features a built-from-scratch 64-bit engine which is based on general purpose hi-quality algorithms and the most recent non-linear models. Special care has been taken in defining the Non-Linear Solver to ensure maximum quality and realism, without losing details in favor of performances (Double-Precision Non-Linear Computing).

Our Non-Plus-Ultra reproductions bring a completely new philosophy to the table: being able to shape your tone by giving total access to the circuit components. Managing each gain stage level, shaping the tone-stacks or modifying the tubes characteristics: there is virtually no limit to what you can achieve with our plugins!

Image


Pwr/Cabs: Non-Linear Convolution
As DiBiQuadro we implemented our own version of Non-Linear Convolution (NLC) to reproduce all the final stages of a miked amplifier. We use to call Pwr/Cab a chain made of:
  • a tube power amp
  • a cabinet/speaker
  • a microphone
  • and a high-end studio preamp
This chain is sampled as a unique block to preserve the correct interaction between the specific power amp and the speakers. Our 64-bit (double precision) NLC engine allows up to 40 kernels (harmonics). In addition, a complete set of parameters allows the full control over the power amp headroom, the type of clipping and the interaction of the negative feedback with the Presence knobs.

The proprietary solutions just described are grouped under a common acronym: DNC+ (Double-Precision Non-Linear Computing and Convolution).

Mars800Free is delivered with 4 Pwr/Cabs.


Shaper
The input signal can be processed by activating a shaper before the preamp. This block allows to select one of the following:
  • Low Cut
  • Mid Boost
  • Graphic Equalizer
  • Parametric Equalizer
  • Compressor
  • Overdrive
  • Distortion
Wah, Overdrive & Distortion — Fully Tweakable!
All DiBiQuadro amp simulations include the following effects, fully tweakable at component level:
  • A beautifully voiced Wah effect. The frequency parameter can also be automated via your DAW.
  • An Overdrive with two modes: TS (symmetric clipping) and SD (asymmetric clipping).
  • A Distortion with three modes: MDP (Distortion+ style), and 250/308 (Classic Preamp) modes.
Both Overdrive and Distortion allow to select the type of diode:
  • Silicon
  • Germanium
The diode characteristic and topology (only positive, only negative, one against one) can also be modified.

Image

Automations
Every knob, button and state of the Preamp and PwrCab sections can be automated in your DAW. This provides a new level of integration of DiBiQuadro plugins with the time-based events of your project.


The Renderer
The Renderer is a stand-alone application to process an input wave file in OffLine mode. It can be invoked via command line too. Its purpose is to render long and processing demanding configurations (e.g. high upsampling).


How to install (TRIAL or FULL)
Just checkout your product on DiBiQuadro website and use Center.
No iLok required!
Last edited by DiBiQuadroDavide on Mon Aug 25, 2025 5:53 pm, edited 1 time in total.

Post

Thanks.

Post

These look very interesting - bit hard to choose :)

Post

Please use DiBiQuadro Center to install/authorize your product.
Thanks but no thanks. I'm not installing yet another dev's spyware just for a "free" ampsim. I really dislike this type of business model. I'm sure your plugin is quite good. It looks impressive on your website. A shame I'll never find out. And I know other dev's use this
model as well. I don't do business with them either....(talking to you Waves & NI).

If you want to spark interest in your paid ampsim plugins, (in an already massively oversaturated market), you might want to consider making your "free" plugin actually free.....like as in a direct download link. You've already fooled me into giving you my
name and e-mail address.
the secrets to old age: Faster horses, Richer Women, Bigger CPU's

https://soundcloud.com/cristofe-chabot/sets/main

Post

CapnLockheed wrote: Sat Aug 23, 2025 8:22 pm
Please use DiBiQuadro Center to install/authorize your product.
Thanks but no thanks. I'm not installing yet another dev's spyware just for a "free" ampsim. I really dislike this type of business model. I'm sure your plugin is quite good. It looks impressive on your website. A shame I'll never find out. And I know other dev's use this
model as well. I don't do business with them either....(talking to you Waves & NI).

If you want to spark interest in your paid ampsim plugins, (in an already massively oversaturated market), you might want to consider making your "free" plugin actually free.....like as in a direct download link. You've already fooled me into giving you my
name and e-mail address.
Sure, no problem.

Post

Thanks. Made a little clip using it with modulated delay.

https://supercooltunes.com/media/Clips/ ... ars800.mp3

Post

Genetic_Junk wrote: Mon Aug 25, 2025 2:35 pm Thanks. Made a little clip using it with modulated delay.

https://supercooltunes.com/media/Clips/ ... ars800.mp3
Very nice clip :phones:

Post Reply

Return to “Guitars”