An Office Buyer's FAQ: JBL Little Speakers, Powered Subwoofers, and Coaxial Loudspeakers

I handle purchasing for a 400-person company, so audio requests eventually land in my inbox. Since I took over AV procurement in 2021, I have compared quotes for what requesters call a JBL little speaker, a JBL EON718S 18-inch powered subwoofer, a Tannoy Cheviot loudspeaker, and a Yamaha DHR15 1000W 15-inch powered loudspeaker. I am not an audio engineer, but I have learned to ask the right questions before spending money.

This FAQ is for other administrators who get pulled into audio requests without a sound crew. It is based on my own purchases, mistakes, and the occasional expense report surprise.

What is the JBL EON718S 18-inch powered subwoofer, and does an office actually need one?

A powered subwoofer is a speaker cabinet with its own amplifier, designed to reproduce low frequencies. The JBL EON718S 18-inch powered subwoofer is part of JBL's portable EON family, meant for a portable PA system in front of a live audience, not for conference-room speech.

Most offices do not need one. A sub makes music and event sound more complete, but it does not make a presenter easier to understand. Low-frequency rumble can even make speech less clear in a reflective room. I approved a quote for an 18-inch subwoofer once because the requester said they needed sound for a larger event. After it arrived, it spent two years in a storage room before someone asked why we owned it. The event space did not need more bass; it needed better main speakers.

If you ask me, let the people who set up the system, not the person who saw a model number in a forum, decide whether to buy an 18-inch subwoofer. In a total cost review, include delivery, storage, moving, setup time, and the risk that it sits unused.

What is the Yamaha DHR15 1000W 15-inch powered loudspeaker?

The Yamaha DHR15 is a powered PA cabinet with a 15-inch woofer and a 1000W class-D amplifier. It is built to provide clean, high output for speech or music over a large room, provided it is paired with the right mixer, cable, and stand.

It sits in a completely different category from a small portable speaker. When a non-technical employee asks for a JBL little speaker, they usually mean a portable speaker for music. That little JBL is convenient, but it cannot reinforce a presentation to 80 people in a big conference room any more than a 1000W 15-inch cabinet belongs on a meeting table.

The decision should start with room size, listener count, and content type. The way I see it, any audio request without a room size is a guess. That guess is where budget goes to die.

What is a coaxial loudspeaker driver, and why does a Tannoy Cheviot loudspeaker keep coming up?

A coaxial loudspeaker driver places a smaller high-frequency driver in the center of a low-frequency cone. Because the woofer and tweeter share the same axis, the timing and coverage can be more consistent than with two drivers mounted side by side. The Tannoy Cheviot loudspeaker is a classic example of this dual-concentric design.

Does an office buyer need to know this? Sometimes. Coaxial drivers appear in professional stage monitors and studio speakers, and some careful listeners prefer the imaging they create. For normal meeting room audio, however, a standard two-way speaker with a separate compression driver and horn is fine.

One thing I have learned: check whether the speaker is active or passive before you approve it. A Tannoy Cheviot loudspeaker is passive in most setups, so it still needs a separate amplifier, cabling, and possibly servicing if you buy a vintage unit. I had to explain that to a manager who wanted classic loudspeakers in the reception but had not budgeted for anything other than the speakers themselves. (Mental note: confirm powered versus passive before saying yes.)

Can a JBL little speaker handle a conference room?

Usually no. A request that mentions a JBL little speaker usually means a portable Bluetooth speaker in the style of the JBL Flip or Clip. Those speakers are great for personal listening or a very small room, but they are not built for group video calls. They have no proper microphone array, and extending them with an external mic creates a setup that someone has to troubleshoot every time.

For an actual conference room, buy a meeting-room speaker with a built-in mic array and echo cancellation. If you only need local audio in a two-person huddle room, a small portable speaker may work, but you should still verify how it connects to the laptop and who owns the dongle.

The most frustrating part of office audio requests is that people do not always say what the equipment will be used for. I once chose a lower-cost portable speaker when the real need was reliable video-conference audio. The meeting interruption cost more than the price difference, and I still kick myself for not asking one more question.

Powered vs. passive loudspeakers: which has lower total cost for an office?

For most offices, powered loudspeakers are easier to own. Active speakers like the JBL EON718S or the Yamaha DHR15 combine the amplifier and speaker in one box, so there is no external amp to rack, no matching of amplifier power to speaker, and less troubleshooting when something does not work. Passive speakers make sense if you already have amplifiers or want to replace an amp without sending the whole speaker to service.

Do not make the decision on wattage alone. Sensitivity, coverage pattern, DSP, and driver quality all affect how the speaker behaves in a room. A 1000W rating is not a measure of loudness by itself. Per FTC guidance (ftc.gov), the claims a vendor makes about power and performance need to be truthful, not misleading, and substantiated, so I ask vendors to show measured specs instead of just quoting peak numbers.

From a total cost viewpoint, the powered option usually saves time on setup and troubleshooting. Those hours rarely appear on an invoice, but they decide whether the conference starts on time.

Do powered speakers and subwoofers have to be the same brand?

No. A JBL powered subwoofer and a Yamaha powered top speaker can work together if someone sets the crossover, level, and timing correctly. You are not locked into one brand for an office PA. A local AV installer can integrate mixed-brand gear.

But if there is no AV engineer in your company, a matched powered system can lower total cost. You get simpler support, preconfigured DSP settings, and fewer questions about whether the subwoofer crossover is set in the right place. The extra money for a matched pair is sometimes cheaper than paying for a separate system design or an afternoon of service calls.

What hidden costs should I plan for when buying portable audio gear?

The unit price is only the beginning. When you buy larger gear, plan for some of these.

• Freight and liftgate delivery, especially if your building does not have a loading dock.
• Speaker stands, pole adapters, and floor protection.
• Cables: XLR, power, adapters, and a small mixer when the source is not wireless.
• Storage space for cabinets, subwoofers, and cases.
• Transport cases or covers if the equipment moves to off-site events.

The low quote can stop looking good when the freight truck arrives without a liftgate and the speaker has to be carried up a flight of stairs. That is not a hypothetical: I have had a delivery crew point at the stairs and then point back at the truck.

When comparing quotes, ask each vendor to list what is included in the price. Do they include a pole mount? Are cables included? What is the freight surcharge? In my opinion, the cheapest quote is only cheap after someone confirms what happens when the boxes arrive.