Auracast vs. FM/RF Assistive Listening Systems: An Honest Cost Breakdown

If you manage a house of worship, lecture hall, courtroom, or theater, chances are your assistive listening system runs on FM or RF technology from Listen Technologies or Williams Sound. These systems have been the default for decades — and for good reason. But with Auracast broadcast audio now shipping in real products, the economics of assistive listening have changed enough to warrant an honest, line-by-line cost comparison.

This article is not a hit piece on FM/RF. Both technologies work. The question is which one makes financial sense for your institution over a five-year horizon.

Why Institutions Still Run FM/RF Systems

FM-based assistive listening became the standard in the 1980s and 1990s, largely because the ADA (1990) and subsequent accessibility regulations required public venues to provide assistive listening, and FM was the only practical wireless option at the time. Williams Sound and Listen Technologies built excellent, reliable products, and a generation of AV integrators, facilities managers, and accessibility coordinators was trained on them.

That history creates real inertia, and it isn't irrational:

• Familiarity. Your AV team already knows how to operate and troubleshoot the system. There is a comfort level that comes with 20 years of the same workflow.
• Existing investment. The transmitter, antenna, and rack were paid for years ago. Replacing receivers as they break feels cheaper than starting over.
• Known compliance. FM/RF systems are a well-understood path to meeting ADA assistive listening requirements, and nobody wants to be the person who experiments with accessibility compliance.
• Dedicated hardware. Receivers work with any hearing aid via a neckloop, no smartphone or pairing required — a genuine benefit for some users.

These are legitimate reasons. But they describe why FM/RF persists, not whether it's still the best value going forward.

The Technical Difference: Auracast vs. FM/RF

FM/RF assistive listening uses a dedicated radio transmitter broadcasting on licensed or license-free RF bands (typically 72-76 MHz or 216 MHz) to proprietary receivers. Each venue-owned receiver is a single-purpose device: it picks up one channel, drives headphones or a neckloop, and does nothing else. Capacity is limited by how many receivers you buy, charge, sanitize, and hand out.

Auracast is a broadcast audio standard built on Bluetooth LE Audio. A transmitter broadcasts high-quality audio to an unlimited number of compatible receivers within range — including many modern hearing aids, earbuds, and dedicated receivers. Instead of a proprietary RF ecosystem, it rides on the same Bluetooth silicon that ships in billions of consumer devices.

Three practical differences matter for institutions:

1. Unlimited listeners. An FM system's capacity is capped by your receiver inventory. An Auracast broadcast has no listener cap — anyone in range with a compatible device can join.
2. BYOD compatibility. Many guests can use their own Auracast-capable hearing aids or earbuds, which means the venue buys, stores, and cleans far fewer devices.
3. Latency and quality. Modern Auracast hardware like the NEXUM VOCE+ operates at roughly 50 ms latency — well within acceptable bounds for speech — with digital audio quality that analog FM can't match.

FM/RF still holds one technical edge: it is completely independent of consumer Bluetooth adoption. If a guest has no smartphone, no compatible hearing aid, and no interest in either, a dedicated FM receiver just works. We'll come back to that.

The Full Cost Comparison

Let's model a realistic scenario: a 300-seat venue that must serve 20 simultaneous assistive listening users — a typical ADA receiver requirement for a space this size.

A few honest caveats on these numbers:

• If your FM/RF system is already fully installed and paid off, your marginal cost of keeping it is just maintenance — roughly $800–1,500 per year. Even then, five more years of FM maintenance ($4,000–7,500) typically exceeds the entire cost of switching to Auracast.
• FM/RF prices above reflect typical street pricing for entry-level installed systems from the major brands; large-venue or infrared alternatives can cost more.
• The single biggest FM/RF cost is one nobody puts on a spreadsheet: the staff labor of distributing, collecting, sanitizing, charging, and hunting down receivers every single event. At even 20 minutes of staff time per event, that's thousands of dollars over five years.

When FM/RF Still Makes Sense

Being honest means admitting where the incumbent technology wins:

• You already own a working system. If it's installed, compliant, and your receivers are in good shape, there's no urgent reason to rip it out. Run it until the maintenance math stops working.
• Your audience skews toward users without smartphones or compatible hearing aids. Dedicated FM receivers with neckloops work with virtually any T-coil hearing aid and require zero tech literacy. For some senior communities, this is decisive.
• You need long range in a challenging RF environment. High-power FM systems cover large or RF-hostile spaces where a single Bluetooth broadcast node might need more careful placement (though multiple Auracast transmitters solve this cheaply).
• Regulatory caution. Some institutions prefer to stick with the technology their accessibility consultants and legal counsel already know.

When You Should Switch to Auracast

• You're building or renovating. New construction is the cleanest switch — you skip the antenna, rack, and integrator costs entirely.
• Your receiver fleet is aging out. If you're facing a $2,000+ receiver replacement cycle, that money buys a complete Auracast deployment with change left over.
• Distribution labor is your pain point. If staff spend meaningful time managing receivers, BYOD-capable Auracast eliminates most of that workload.
• You need to scale. Adding listeners on FM means buying more hardware per head. Adding listeners on Auracast costs nothing for guests with compatible devices — and $20–25 per backup receiver otherwise.
• You serve multiple simultaneous uses. Assistive listening, overflow rooms, silent interpretation, and tour groups can all share one broadcast infrastructure.

The pragmatic path many institutions take is hybrid: keep the FM system running for existing users while deploying Auracast alongside it, then let the FM fleet retire naturally. Because Auracast hardware is inexpensive, running both in parallel costs less than one FM receiver replacement cycle.

FAQ

Is Auracast compliant with ADA assistive listening requirements? The ADA requires venues to provide assistive listening systems with a minimum number of receivers proportional to seating capacity; it does not mandate a specific technology. Auracast systems with venue-provided backup receivers can satisfy receiver-count requirements. Consult your accessibility advisor for your specific jurisdiction.

What if my guests don't have Auracast-compatible devices? Provide dedicated Auracast receivers, exactly as you would FM receivers. At wholesale pricing of $20–25 per unit, equipping 20 seats costs less than a single year of FM battery and repair budgets.

How does Auracast audio quality compare to FM? Auracast is fully digital with modern LC3 codecs. It avoids the static, interference, and channel drift that analog FM systems exhibit, and latency of around 50 ms is comfortable for live speech.

Is Auracast secure? Can people outside the room listen? Auracast broadcast range is comparable to FM coverage of the same space. Broadcasts can be encrypted with a broadcast code for privacy-sensitive environments like courtrooms.

What happens when the technology changes again? This is Auracast's structural advantage: it rides the consumer Bluetooth ecosystem, which is updated by the world's largest device manufacturers, rather than a proprietary radio standard maintained by a niche vendor.

Can I keep my FM system and add Auracast? Yes. Both can run from the same audio source simultaneously, letting you transition users gradually.

Upgrade Your Assistive Listening Without the Five-Figure Budget

If the math above looks familiar — an aging receiver fleet, mounting maintenance hours, and a replacement quote that made you wince — it's time to price the alternative.

The NEXUM VOCE+ is a 4.2-gram Auracast transmitter/receiver with ~50 ms latency, plug-and-play setup, and a 1-year warranty. It connects to your existing mixer or PA in minutes, serves an unlimited number of listeners, and lets most guests simply use their own earbuds or hearing aids.

Wholesale pricing for institutions:

• Retail: $79/unit
• 50+ units: $25/unit
• 100+ units: $20/unit
• (Shipping not included; volume quotes available for larger deployments.)

A complete 20-receiver deployment typically costs less than one year of maintaining an FM system. Ready to see what your venue would save? View wholesale pricing and request a quote at our wholesale page.

Related Reading

• Auracast vs. Telecoil (T-Coil): Do You Still Need a Hearing Loop?
• ADA Assistive Listening Requirements: What Your Venue Must Provide (and the Auracast Shortcut)
• Assistive Listening for Churches: A 2026 Buyer's Guide (FM vs. Loop vs. Auracast)

Looking for volume pricing? View NEXUM VOCE+ wholesale pricing for institutions.