Electro-Voice Gear: A Cost Controller’s Honest FAQ on 15" Subs, Website Specs, and Outdoor Loudspeakers

I manage procurement for a mid-sized AV installation company. I've handled our equipment budget of roughly $120,000 annually for the past six years, and I've documented every single order in our tracking system. When it comes to Electro-Voice, I’m not here to sell you on the brand. I’m here to tell you what I’ve learned from comparing quotes, checking specs, and living with the gear after the invoice is paid.

This FAQ answers the questions I actually get from our installers and clients. No fluff, just the stuff I wish I'd known before I started buying.

Is a 15-inch Electro-Voice subwoofer worth the upgrade for a mobile PA?

Look, I've bought cheap subs. We all have. The “budget” option cost us a $1,200 redo when the amplifier module failed during a corporate event. That’s not an isolated story—that's a Tuesday.

For the Electro-Voice ELX200-15SP (yes, the active 15" model), the value isn't just the low-end punch. It's the reliability. When I calculated the total cost of ownership over three years—including the repair costs on the cheaper unit and the downtime—the EV was actually cheaper. It’s got the DSP presets built-in, which means our less experienced techs can set it up correctly without guessing. It's not the absolute loudest 15" on the market, but it’s consistent. The SPL is enough for a few hundred people in a ballroom, and it doesn't sound strained doing it.

Why does the Electro-Voice website feel clunky, and should I trust the specs there?

Here's the thing: the spec sheet doesn't care about web design. I've spent hours cross-referencing data on the official Electro-Voice website (electro-voice.com) against third-party measurements. The site isn't the prettiest, but the downloadable PDF spec sheets are gold. They give you the actual frequency response curves and dispersion patterns, not just marketing numbers.

For example, when I was comparing the ZLX-P line against the old ZLX series, the website showed the difference in the high-frequency driver. It wasn't obvious in the marketing copy, but the spec sheet showed a smoother response and a wider coverage angle. That's a huge deal for a venue with shallow balconies. The site is a resource, not a brochure. Use it for the technical data, then call a rep to verify stock. Prices on the site aren't always updated, but as of March 2025, the catalog data was accurate.

How do I supply an outdoor megaphone loudspeaker for an emergency siren system?

I had a client ask for “outdoor megaphone loudspeaker supply” for their warehouse yard. They thought they needed a hand-held megaphone. They actually needed a projector horn—a weatherproof PA speaker. This is a classic case of knowing the difference between a megaphone (battery-powered, portable) and a loudspeaker (driven by a separate amplifier).

When you're looking at outdoor units, check the IP rating. You want at least IP54 for prolonged exposure to dust and rain. Also, look at the wattage tap (70V/100V lines are common for these systems). A lot of suppliers will sell a cheaper horn that melts when you push 100V through it at high volume for extended periods. We supply the Electro-Voice EVA-2082S/1220 line for this when we need high SPL over distance. It’s overkill for a backyard, but for a factory yard, it's the difference between a warning you can actually hear and a muffled noise in the wind.

Is it practical to put a loudspeaker on a drone?

We get asked about this more often since companies started using drones for search and rescue or crowd control. The technology works, but the audio quality is usually... rough. There are two paths: buying a commercial drone with a built-in loudspeaker (expensive, and the audio quality is often an afterthought) or rigging a lightweight battery-powered loudspeaker to a larger drone.

We tested a setup for a client with a heavy-lift drone and a powered compact PA speaker. The challenge isn't lifting it—it's the prop wash. The wind from the rotors distorts the sound so much that speech intelligibility drops below 70%. That’s terrible for emergency messages. We ended up recommending a tethered balloon with a down-firing loudspeaker array for their long-term outdoor announcement needs. It stays in one spot, and the sound is actually clear. The drone is cool, but sometimes 'high-tech' is the wrong tool for the job. That was a surprise for me—I expected the drone to work better than it did.

What's the deal with the "subwoofer output" crossword clue answer?

Okay, this is a fun one that comes up in search logs. The crossword clue “subwoofer output” usually refers to BASS.

From a technical standpoint, the “output” of a subwoofer is low-frequency energy below 100Hz—but the clue isn’t looking for “20Hz sine wave.” It’s a four-letter word. So if you’re doing a crossword, just concentrate on the music. Bass is the answer. But if you’re buying a sub, remember that a 15" subwoofer's output isn't just about the driver size; it's about the power amp and the enclosure tuning. That’s why the EV units sound tighter than a cheaper 18" with a flimsy amp. The output is controlled and musical, not just loud.

Should I buy passive or active Electro-Voice speakers for a multipurpose venue?

I used to recommend active speakers for everything because they're easier to install. The automated process eliminates the guessing games with rack amplifiers. However, for a permanent installation where you have a dedicated amp room, passive speakers still win. We installed the EV QRx212/over QXp218 subwoofers passive in a theater, and the upgrade path is better. If the amp fails, you swap out a rack unit—you don't have to climb a ladder to replace a speaker with a built-in amp module. That saves us about $300 in labor on every service call.

That said, the active EV Evolve 50 column array is brilliant for mobile events. It’s a one-person setup. The point is, there’s no “best” topology, only the best total cost of ownership for your exact scenario. Don't let a salesperson tell you otherwise.