BST100 Super Overdrive guitar amplifier plugin is a perfect emulation of the 90s guitar amplifier Holy Grail!

Nembrini Audio spent many years on modeling to build a Guitar Amplifier plugin that is at the same time easy to use and good sounding in any situation and settings.

Two channels driven by four 12AX7/7025 Virtual Tubes, carefully modeled and fine tuned for the cutting edge 90s guitar amplifier hi-gain sound:

- Normal Channel with Bright and Clean/Crunch switches from crystal clear to creamy crunch tone
- Boost channel for the famous USA Hi-Gain guitar tone!

We have also extended the possibility of the original hardware thanks to the versatility of the digital world with new features for the maximum control of your tone:

BST100 Super Overdrive guitar amplifier plugin includes a complete recording chain emulation.

Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

What’s New

Version 1.1

Fix hum noise under particular settings

Ratings and Reviews

4.8 out of 5
9 Ratings

9 Ratings

Gitarzz ,

Very Impressive

If you play guitar and you need an amp sim that’ll do everything from dark jazz tones to bright snappy country, blues with a touch of break up to ballz to the wall metal, this can do it and do it AMAZINGLY well!
I’ve never played a Holy Grail amp but I don’t need too. This sounds great whether or not they were successful in modeling that amplifier. The gain will go higher than anyone would ever want. Unfortunately I have to say the noise gate is not up to the task. It does ok but I still had to add a gate in my chain.
Having said that, this is probably now my number one for recording guitars on my iPad Pro.
Dev... please add a better noise gate!

sgr119 ,


First off, this is a great amp, and it’s an Audio unit, so buy it.

Now on to why. It sounds amazing, both clean and heavy. Additionally, it has an impulse response loader to change things up a bit. It doesn’t seem able to load user files, but you don’t really need them. It’s easy on cpu, too.

I own a LOT of amp sims and to be honest, I bought them searching for a good heavy tone. I found a few, but they were always really noisy, and the noise gates killed the tone. Plus they were cpu hogs. I get a really nice heavy tone from this with almost no noise. Like, almost none. Very acceptable. And the noise gate on this amp does not squash the tone if you decide to use it.

I don’t need effects to get the tone want now. Wish I’d have found this sooner, I’d have saved money and gotten what I want earlier.

Just enough options to have fun, not so much you start wasting time and money.

Great guitar player’s amp sim. Pull the trigger.

largo2018 ,

Absolutely the best auv3 amp sim

This is by far the best auv3 amp sim. The tones are pretty much spot on.


Nembrini Audio S.r.l.
32.9 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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