# JAF DeeJey - Full Range Filter — Audio Unit (AUv3) > Analog-modeled audio filter for seamless lowpass/highpass frequency sweeps with saturation. (iPhone/iPad app by Jens Guell.) - Source: https://appshunter.io/ios/app/jaf-deejey-full-range-filter/id1533092436 (this page in markdown: same URL + `.md`) - Developer: [Jens Guell](https://appshunter.io/developer/1195004865) - Category: Music, Utilities, Music - Price: $9.99 - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 32 MB - Languages: English - Released: 2020-10-30 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/jaf-deejey-full-range-filter/id1533092436/reviews.md ## What is JAF DeeJey? This Audio Unit, a filter, part of our JAF Series, is specialized for continuously fading the processed audio signal seamlessly between lowpass and highpass in performance situations. The center position of the cutoff will pass thru the unfiltered sound. A tube like saturation effect can be applied too. The particular feature of fading between low and high frequency is often asked by DJs for their special purposes, but only few products actually will offer such essential feature directly or even at all. Building own filter setups with 2 filters usually can be problematic for allot of possible reasons. Our unit comes with 12 different selectable none-linear filter characteristics that are well known from our flagship product, the “JAF Collection”. These filters are modelled after ancient hardware filters from the golden age of analog synthesizer technology and will deliver unreached authenticity with all the quirks. They were initially thought for freshing up digital audio material and creative usage. The filters all support fine-tuned “peak” and “drive” parameters and therefore will have a great amount of sonic variability. The drive will add tube like saturation to the filter models but also will touch the internal filter characteristics. Most of the models have high resonance and in fact can act as tone generators due to their ability of self oscillation. We overworked each single filter model carefully for supporting the analog style continuous fading between lowpass and highpass, which is technically difficult to solve. Special attention was applied to the center position, which usually should pass the audio signal untouched for keeping it free of fading artefacts and possible other negative side effects while sweeping the cutoff and turning back to the allpass. Our filters are real stereo processing filter units and can produce quite extreme values. They have unmatched sonic qualities, usually not found with common digital filters. This behaviour is intended. We hope, that we can close the gap for all DJ enthusiasts with this release now, giving them a filter plugin, that is easy to use and specialised for applying interesting sounding frequency sweeps to their mixes. JAF DEEJAY is available exclusively on the Apple iOS platforms and will not be released on any other systems. ## Key features - Seamless lowpass to highpass frequency fading - Tube-like saturation effect - 12 selectable non-linear filter characteristics - Analog hardware filter modeling - Stereo processing - Self-oscillation capable filters ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/jaf-deejey-full-range-filter/id1533092436/reviews.md ### 5/5 — Super love the sound but please... *2021-01-25, version 1.2* Can we have an auto unity volume option or an output volume knob? Also a mix knob would be huge! Love your plugs i own tons. ## Frequently asked questions about JAF DeeJey ### What is JAF DeeJey? JAF DeeJey is an Audio Unit (AUv3) designed as a specialized filter for iOS devices. It allows for continuous fading between lowpass and highpass frequencies, with an added tube-like saturation effect. ### What makes JAF DeeJey unique for DJs? It offers a feature often requested by DJs: the ability to seamlessly fade processed audio between lowpass and highpass. This is technically challenging and not commonly found in other filter products. ### What kind of filter characteristics does JAF DeeJey offer? JAF DeeJey includes 12 different selectable non-linear filter characteristics. These are modeled after vintage analog hardware filters from the golden age of analog synthesizer technology, providing authentic sound with unique quirks. ### Can JAF DeeJey be used for creative sound design? Yes, the filters are designed for creative usage and can be used to refresh digital audio material. With fine-tuned 'peak' and 'drive' parameters, and the potential for self-oscillation, they offer significant sonic variability. ### What devices is JAF DeeJey compatible with? JAF DeeJey is available exclusively on Apple iOS platforms and is compatible with iPhone, iPad, and iPod. ### How much does JAF DeeJey cost? JAF DeeJey is a paid application, priced at $9.99. ### How often is JAF DeeJey updated? The latest version is 1.2, released on October 30, 2020. The app was initially released on the same date in 2020, suggesting updates may not be very frequent. ### What is the age rating for JAF DeeJey? JAF DeeJey has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 1 release) ### 1.2 — 2020-10-30 No release notes. ## Apps similar to JAF DeeJey | App | Rating | Price | Category | | --- | --- | --- | --- | | [GSiRotary](https://appshunter.io/ios/app/gsirotary/id1644548509) | 3.7 (3) | $19.99 | Music | | [GS-201](https://appshunter.io/ios/app/gs-201/id1643866815) | 4.5 (11) | $11.99 | Music | | [volumeCTRL](https://appshunter.io/ios/app/volumectrl/id6444421682) | 3.3 (7) | $4.99 | Music | | [Transient Shaper](https://appshunter.io/ios/app/transient-shaper/id1599434645) | 5.0 (1) | $5.99 | Music | | [Textquencer Sequencer & Synth](https://appshunter.io/ios/app/textquencer-sequencer-and-synth/id1661316322) | 4.6 (7) | $4.99 | Music | | [Chorus D](https://appshunter.io/ios/app/chorus-d/id1499061277) | 5.0 (6) | $5.99 | Music | ## More apps by Jens Guell - [GM MIDI Player](https://appshunter.io/ios/app/gm-midi-player/id1445780869) - [MIDI SWEET : Clock Sync (AU)](https://appshunter.io/ios/app/midi-sweet-clock-sync-au/id1454284852) - [JAF Model One](https://appshunter.io/ios/app/jaf-model-one/id1472652593) - [JAF Collection](https://appshunter.io/ios/app/jaf-collection/id1472896422) - [JAX Stereo Tool (AU)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302) - [JAX !Make Louder (Audio Unit)](https://appshunter.io/ios/app/jax-make-louder-audio-unit/id1474614677) All apps by Jens Guell: https://appshunter.io/developer/1195004865 --- *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 2026-06-10.*