# eighty32 Toolbox: RF & Audio — 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-rf-and-audio/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 · 4 MB
- Languages: English
- Released: 2026-06-10
- Data updated: 2026-09-12
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/eighty32-toolbox-rf-and-audio/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. 30+ tools, 800+ gear specs, iPhone and iPad.

RF COORDINATION
- Generate clean, intermod-safe frequency sets for any wireless system, with manufacturer band presets (Shure, Sennheiser, Lectrosonics, Sony, Audio-Technica, Wisycom)
- Offline TV-channel lookup: type a US ZIP code and see every licensed TV station within your radius, sorted by distance, with callsign, city and power class. Built from the FCC licensing database, works with no signal backstage
- Automatic exclusion of channel 37 and the 600 MHz mobile block, warnings for high-power stations just outside your radius
- Scan-CSV import with a threshold slider, and a band map showing TV blocks, scan hits and your generated carriers together
- Save shows: reopen a venue's coordination next time, duplicate it for a second stage, export as PDF, text or CSV
- Intermod & spacing analysis, coax / antenna cable dB-loss calculator, SMPTE LTC generator & reader

GEAR DIRECTORIES
- 420+ loudspeakers and 380+ microphones: max SPL, frequency range, dispersion, weight, power, connectors, rigging, sensitivity, polar pattern
- Filter by type, form factor (handheld, capsule, lav, headset, shotgun), polar pattern and brand. Sort by SPL, low end or weight. Star favorites. Compare up to three side by side
- Capsules, lavs and headsets show which wireless transmitters they fit, one tap into that system's bands and the coordinator
- Wireless bands & blocks, SFP transceiver reference, connector pinouts (XLR, speakON, DMX, DB25 and more), resistor / fiber (TIA-598) / AC mains color codes
- Catalogs update over the air, no App Store update needed

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

CALCULATORS
- Delay time (distance to ms), speaker & sub alignment (end-fire / cardioid)
- 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
- Pick feet/pounds or meters/kilograms and F/C once; every tool follows

Pin your go-to tools to the top of the home screen and search tools and gear from one box.

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

Built by working RF coordinators and A2s at eighty32 Show Tech, Las Vegas.

## 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 2 releases)

### 1.1 — 2026-09-03

RF coordination just got a lot smarter.

• ZIP code TV lookup now works completely offline. Type any US ZIP (or use your location) and see every licensed TV station within your radius, sorted by distance, with callsign, city and power class. No signal needed backstage. Built from the FCC licensing database (7,000+ transmitter sites) and refreshed over the air.
• Channel 37 and the 600 MHz mobile block are excluded automatically. Stations just outside your radius are flagged so a hot full-power stick 70 miles out doesn't surprise you.
• Save shows. Every coordination (band, spacing, IM settings, kept frequencies, TV exclusions, scan threshold and results) can be saved, reopened, duplicated and exported as PDF, text or CSV.
• Band map. See TV blocks, scan hits, kept and generated frequencies on one plot.
• Gear directories quadrupled: 420+ speakers and 380+ microphones, with filters by type, form factor, polar pattern and brand, sort by SPL / low end / weight, star favorites, and side-by-side compare.
• Capsules, lavs and headsets now show which wireless transmitters they fit, with one-tap jump to that system's bands and straight into the coordinator.
• Search the home screen for gear ("K2", "SM58") and jump straight to the spec sheet. Pin your go-to tools to the top; recents appear automatically.
• Choose feet/pounds or meters/kilograms and °F/°C once in Settings and every calculator follows.
• iPad and landscape support.
• Gear and FCC data update over the air, no App Store update required.

### 1.0 — 2026-06-11

No release notes.

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## More apps by Chris DeBrizzio

- [eighty32 Listen](https://appshunter.io/ios/app/eighty32-listen/id6776395398)
- [BrownBox: Line Array Rigging](https://appshunter.io/ios/app/brownbox-line-array-rigging/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

## Related topics

[toolbox rf](https://appshunter.io/ios/topics/toolbox-rf)

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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 2026-09-12.*