# Nugget 02 - Series 9000 — Low-pass filter with drive

> Classic 80s low-pass filter audio effect plugin with quantizer and envelope follower. (iPhone/iPad app by Sketch Audio, LLC.)

- Source: https://appshunter.io/ios/app/nugget-02-series-9000/id6767371080 (this page in markdown: same URL + `.md`)
- Developer: [Sketch Audio, LLC](https://appshunter.io/developer/1699093348)
- Category: Music
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 11 MB
- Released: 2026-06-25
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nugget-02-series-9000/id6767371080/reviews.md

## What is Nugget 02?

Series 9000 is a low-pass filter effect based on the steep, sixth-order sound made famous by a late 80s rackmount sampler. For fun, we included a 12-bit quantizer and added a few original features, too. Watch your fingers, this thing cuts away frequencies like a samurai sword! 

Features:
- Completely free, no unlock required!
- Four controls:
    - Cutoff: like the hardware, this filter doesn’t close completely
    - Drive: subtle to extreme. At 0 dB, you’ll get a fully clean sound
    - Q: filter resonance
    - Envelope: envelope follower to cutoff modulation, adaptive release
- Light or dark color scheme.

Series 9000 is an AUv3 effect plug-in. For best experience, load the plug-in on an effects slot in a compatible host. You can also preview the effect in the standalone with our new mini-player.

Check out our YouTube: https://www.youtube.com/@sketchaudio
Visit the site: https://sketchaudio.com/nuggets/series-9000

## Key features

- Sixth-order low-pass filter emulation
- 12-bit quantizer
- Envelope follower for cutoff modulation
- Adjustable drive and resonance
- Light/dark color schemes
- AUv3 effect plugin

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/nugget-02-series-9000/id6767371080/reviews.md

### 5/5 — A must have

*2026-06-25*

Works great for my projects. Please make a highpass filter next. Thats  would be great

**Developer response:** Thanks for the review! Glad you're enjoying Series 9000.

## Frequently asked questions about Nugget 02

### What is Nugget 02 - Series 9000?

Nugget 02 - Series 9000 is an AUv3 audio effect plugin that emulates a classic sixth-order low-pass filter from the late 80s. It includes a 12-bit quantizer and an envelope follower for creative sound shaping.

### What devices does Nugget 02 - Series 9000 support?

Nugget 02 - Series 9000 is supported on iPhone, iPad, and iPod devices.

### Is Nugget 02 - Series 9000 free to use?

Yes, Nugget 02 - Series 9000 is completely free to use and does not require any unlocks.

### How often is Nugget 02 - Series 9000 updated?

The latest version, 1.0.1, was released on June 25, 2026, indicating recent development activity. Updates typically occur to add features or improve performance.

### What are the main controls in Nugget 02 - Series 9000?

The app features four main controls: Cutoff for filter frequency, Drive for signal distortion, Q for filter resonance, and Envelope for modulation of the cutoff.

### Can I use Nugget 02 - Series 9000 without a host application?

Yes, you can preview the effect in its standalone mode using the included mini-player. For best results, it is recommended to load it as an AUv3 effect in a compatible host.

### What is the age rating for Nugget 02 - Series 9000?

Nugget 02 - Series 9000 has an age rating of 4+, making it suitable for a wide range of users.

### Does Nugget 02 - Series 9000 have ads?

No, Nugget 02 - Series 9000 does not contain advertisements. It is a free application with no in-app purchases or ads.

## Version history (last 1 release)

### 1.0.1 — 2026-06-25

No release notes.

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All apps by Sketch Audio, LLC: https://appshunter.io/developer/1699093348

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*