# eighty32 Toolbox — AV, RF & broadcast tools

> Field reference and measurement suite for AV, RF, and live-production technicians. (iPhone/iPad app by Chris DeBrizzio.)

- Source: https://appshunter.io/ios/app/eighty32-toolbox/id6777845752 (this page in markdown: same URL + `.md`)
- Developer: [Chris DeBrizzio](https://appshunter.io/developer/6776321234)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-06-10
- Data updated: 2026-07-08
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/eighty32-toolbox/id6777845752/reviews.md

## What is eighty32 Toolbox?

eighty32 Toolbox is the field reference and measurement suite built for AV, RF, and live-production technicians — everything you reach for on a show day, in one fast, offline app.

CALCULATORS
- Delay time (distance to ms), speaker & sub alignment
- dB math: SPL over distance, level summing, V/W, plus a full dB scale converter (dBu/dBV/dBFS, dBA/dBC)
- Ohm's law & speaker loads, power/current draw and breaker sizing
- Timecode & frame-rate math, frequency to wavelength
- OSHA/NIOSH noise-dose exposure timer

RF & WIRELESS
- Intermod & spacing analysis
- RF coordination engine: generate clean, intermod-safe frequency sets
- DTV channel lookup by ZIP to avoid local TV channels
- Manufacturer to model to band selection (Shure, Sennheiser, Lectrosonics, Sony, Audio-Technica, Wisycom)
- Coax / antenna cable dB-loss calculator
- SMPTE LTC timecode generator & reader

AUDIO METERS & TOOLS (best with a 2-channel interface)
- RTA + dual-FFT transfer function with coherence
- Loudness meter (EBU R128 / LUFS)
- SPL meter, phase/polarity & phase-correlation meters
- Delay finder (reference vs. mic)
- Signal generator (sine/pink/white/sweep)
- Input-level tester and 4-wire com test
- QLab-style playback / cue tab with fades, loop & ducking

REFERENCE LIBRARY
- Speaker directory: L-Acoustics, d&b, Meyer, JBL, Adamson, Nexo, Martin and more, with verified specs
- Microphone directory: Shure, Sennheiser, DPA, Neumann, AKG and others
- SFP transceiver reference with wavelength color codes
- Connector pinouts (XLR, speakON, DMX, DB25 and more)
- Color codes: resistor, fiber (TIA-598), AC mains wiring

eighty32 Toolbox is free to use. A one-time Pro unlock adds the advanced RF coordination, audio meters, and full directories. No subscription, yours forever.

Built by working techs, for working techs.

## Key features

- Delay time and speaker alignment calculators
- dB math and scale conversion
- Ohm's law and speaker load calculations
- RF intermodulation and spacing analysis
- Frequency coordination engine
- Audio meters (RTA, FFT, Loudness, SPL)
- Equipment reference library (speakers, mics, connectors)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Toolbox Pro | $9.99 | one-time |



## Frequently asked questions about eighty32 Toolbox

### What is eighty32 Toolbox?

eighty32 Toolbox is a field reference and measurement suite designed for AV, RF, and live-production technicians. It provides a range of calculators, RF analysis tools, audio meters, and a reference library of equipment specifications.

### Is eighty32 Toolbox free to use?

The core functionality of eighty32 Toolbox is free to use. Advanced features like RF coordination, audio meters, and full directories require a one-time Pro unlock purchase.

### Does eighty32 Toolbox have ads?

No, eighty32 Toolbox does not contain advertisements. The app is free to use, with an optional one-time purchase for Pro features.

### What devices does eighty32 Toolbox support?

Based on the provided data, eighty32 Toolbox currently supports iPhones. Further platform compatibility details may be available from the developer.

### How often is eighty32 Toolbox updated?

eighty32 Toolbox was last updated on June 11, 2026, with version 1.0. Information on update frequency is not explicitly provided, but the recent update suggests ongoing development.

### What is the age rating for eighty32 Toolbox?

eighty32 Toolbox has an age rating of 4+. This indicates it is suitable for a wide audience, including younger users, with no mature content concerns.

### Can I use eighty32 Toolbox offline?

Yes, eighty32 Toolbox is designed to be a fast, offline app, making it suitable for use in environments without internet access.

### What kind of calculators are included in eighty32 Toolbox?

The app includes calculators for delay time, speaker alignment, dB math (SPL over distance, level summing, V/W, dB scale conversion), Ohm's law, speaker loads, power/current draw, breaker sizing, timecode, frame-rate, and frequency to wavelength.

## Version history (last 1 release)

### 1.0 — 2026-06-11

No release notes.

## More apps by Chris DeBrizzio

- [eighty32 Listen](https://appshunter.io/ios/app/eighty32-listen/id6776395398)
- [eighty32 BrownBox](https://appshunter.io/ios/app/eighty32-brownbox/id6778296693)
- [eighty32 SwitchBox](https://appshunter.io/ios/app/eighty32-switchbox/id6779463329)
- [eighty32 ClaimBox](https://appshunter.io/ios/app/eighty32-claimbox/id6780038983)
- [PatchBoy: Stage Plot & Patch](https://appshunter.io/ios/app/patchboy-stage-plot-and-patch/id6782497487)

All apps by Chris DeBrizzio: https://appshunter.io/developer/6776321234

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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 2026-07-08.*