arna vs. eventide blackhole.
Blackhole is a category. It has a sound, a hardware lineage, and a generation of records built around it. Arna's Crown territory is adjacent but not identical — and the rest of Arna isn't trying to be Blackhole at all.
short version.
Eventide Blackhole is a paid plugin from a company with a 50-year hardware pedigree. It does pitch-shifted, gravity-warped, infinite reverb in a way that no other tool quite does. It is excellent and famous for a reason.
Arnais a free reverb plugin that focuses on real spaces, breathing textures, and a one-knob journey. The Crown phase and the Cinematic preset overlap with Blackhole's territory only in scale — there is no shimmer, no gravity, no pitch shift in Arna by design.
If your sound is pitched-up infinite shimmer tails, you want Blackhole. If your sound is a lead vocal that sits in a real cathedral and breathes, you want Arna.
spec comparison.
| Arna | Eventide Blackhole | |
|---|---|---|
| Price | Free (1snob) / Paid (Full, TBD) | Paid (USD 199) |
| Formats | VST3 · AU | VST3 · AU · AAX · hardware (H9, H90) |
| Platform | macOS 12+ | macOS · Windows · iOS · hardware |
| Engine | DiffGFDN trained against IRs | Eventide proprietary algorithm (Blackhole) |
| Tail length | Up to 30 s · ∞ with Freeze (Full) | Up to ~80 s · ∞ in Freeze mode |
| Pitch / shimmer | No (deliberate) | Yes — pitch shift, mod, gravity |
| Workflow | One knob (1snob) / nine knobs (Full) | Two-page UI · ribbon controller |
| Best for | Acoustic spaces + automated journey | Otherworldly, pitch-warped infinite tails |
Blackhole specs paraphrased from the public Eventide product page.
pick blackhole when:
- You want pitched-up shimmer tails — Arna does not shimmer, by design.
- You want the gravity / inverse / negative-feedback sounds Blackhole is famous for.
- You want a ribbon-controller workflow with two pages of parameters.
- You produce across macOS, Windows, iOS, and Eventide hardware (H9, H90) and want one preset library.
- You want the Blackhole sound, period. There is no substitute and we are not pretending to be one.
pick arna when:
- The 1snob edition is free; you are not deciding between $0 and $199.
- You want a single knob to capture the journey from tight room to infinite tail.
- You want a brain that listens to the source and modulates the tail at audio rate.
- You want acoustic-space accuracy on Cathedral, Hall, Chamber, Plate — trained against IRs.
- You want zero added latency.
both can live in one session.
Arna on the lead vocal for the room. Blackhole on a parallel return for the shimmer stinger. The two reverbs are not competing — they are two different microphones pointed at two different rooms.