Which PA Speaker Fits Your Room?
Which PA speaker fits your room?
Start with the room, not the wattage. Three questions decide almost every PA purchase:
- How many people, and how big is the room? A living-room-sized space and a 200-seat hall are different jobs.
- What are you amplifying? Spoken word and acoustic guitar need far less low end than a DJ set or a full band.
- Who is carrying it? If one person loads in alone, weight and handles matter as much as sound.
If you can answer those three, the speaker almost picks itself. Tell us your room — message us and we'll spec it — or use the table below.
Shopping the JBL lineup? See the full range on our JBL Powered PA Speakers page — every model grouped by use case.
The quick pick
| If your room is… | Start with | Why |
|---|---|---|
| Small room, rehearsal, solo acoustic, speech — up to ~50 people | EON710 (10") | Lightest to carry, widest coverage (110°), plenty for voice and acoustic |
| Small venue, wine bar, DJ in a tight room, small church — ~50–100 people | EON712 (12") | More low end and output than the 710, still easy for one person to carry |
| Mid-size room, band, outdoor pop-up, larger church — ~100–200 people | EON715 (15") | Biggest top in the line, most output, fills the space without a full rig |
| DJ, dance floor, live band with real bass — any size where people should feel it | Add a sub: EON718S (18") under any of the above | Tops handle voices and mids; only a sub delivers the low end properly |
| Large room, venue, or a system you will grow | PRX915 (15") + PRX918XLF (18" sub) | Step up in power and DSP control; built to anchor a bigger system |
Compare the speakers in this guide
All figures are manufacturer specifications (JBL EON700 / PRX900 series).
| Speaker | Woofer | Power (peak / RMS) | Max SPL | Best for |
|---|---|---|---|---|
| EON710 | 10" | 1,300W / 650W | 125 dB | Small rooms, monitors, speech, acoustic |
| EON712 | 12" | 1,300W / 650W | 127 dB | Small venues, DJ, small church |
| EON715 | 15" | 1,300W / 650W | 128 dB | Mid-size rooms, bands, outdoor |
| EON718S sub | 18" | 1,500W peak | 131 dB | Bass under any EON700 top (down to 31 Hz) |
| PRX915 | 15" | 2,000W / 1,000W | 133 dB | Larger rooms and venues, step-up system |
| PRX918XLF sub | 18" | 2,000W / 1,000W | 134 dB | Bass under PRX900 tops |
Same amplifier family, different job: the EON710, 712 and 715 all run 1,300W peak — the difference is woofer size, coverage and low-end reach, not just loudness. The PRX915 steps up to 2,000W peak with deeper DSP control (including app control and feedback suppression) for bigger rooms.
One speaker or a pair?
- One speaker works for speech, a solo act, or a monitor. Buy the second one later — the line is designed to grow.
- A pair is the right call for a DJ, a band, or any room where people sit on both sides. A matched pair also saves you a stand-and-cable hunt later — see the ready-built pairs below.
Ready-built pairs at CS PRO Audio LLC (prices at time of writing, Nov 8, 2026 — check the product page for the current price):
- DJ Starter PA System — 2× EON715 — $1,098
- Pro DJ & Venue System — 2× PRX915 — $1,998
Don't forget the rest of the rig
A speaker on the floor is half a system. Before you check out, make sure you have:
- Stands — a pair of speaker stands gets the sound over heads instead of into knees.
- A sub pole — mounts the top speaker above the sub, cleanly and safely.
- Cables — XLR cables from your mixer to the speakers, plus spares. One failed cable ends a gig.
How to buy from CS PRO Audio LLC
- Free shipping on orders $125+
- Financing at checkout (Shop Pay Installments, Sezzle, Affirm)
- Authorized dealer — real audio specialists, not a call center. Tell us your room, your crowd, and what you're plugging in, and we'll tell you honestly if the speaker you're looking at is the right one — even if the right answer is the smaller one.
Not sure? Message us with your room size and what you're amplifying. We'll spec it — no obligation.
— Christian, CS PRO Audio LLC, Corpus Christi, TX · cs-proaudio.com