Ceiling and install loudspeakers
JBL Control 47LP Review: Right Speaker, Wrong Job for Most Churches
Quick answer
Buy the Control 47LP if you need even ceiling coverage for speech in a flat-ceilinged room, with the back can included so it drops into a standard grid. Skip it if a worship band plays, because a distributed ceiling system cannot deliver music with impact or a sense of direction.
The Control 47LP is the right loudspeaker for a fellowship hall, an overflow room, a corridor system or a low flat-ceilinged chapel where speech intelligibility is the whole requirement. It is the wrong loudspeaker for a main sanctuary with a worship band, and a church that installs ceiling speakers for contemporary worship will be disappointed no matter how many it buys.
This review is drawn from published specifications, manufacturer figures and the consensus of verified owner reviews, not hands-on testing. The most useful thing this review can do is talk a church out of the wrong application.
On this page
What a coaxial ceiling speaker with a back can gives you
Three practical things. Coaxial means the high and low frequency drivers share an axis, so the sound does not change character as somebody walks under it, which is what makes a row of ceiling speakers sound like one system rather than a series of separate sources. The back can means the enclosure is included, so the speaker drops into a suspended ceiling grid as one part number.
And a 70V tap means it can join a distributed line with many other speakers on one amplifier, which is how any building-wide system is wired. Spacing is the design decision that matters most: work it out with the ceiling speaker spacing calculator rather than guessing, and see the field in the ceiling speaker roundup.
Published specifications
The coverage angle and the ceiling height together decide how many speakers your room needs. Neither number is useful alone.
The Control 47LP is a 6.5 inch coaxial ceiling speaker with a 110 degree conical pattern, back can included, and 8 ohm or 70V operation, sold as a pair.
| Specification | Figure |
|---|---|
| Driver | 6.5 inch coaxial |
| Coverage pattern | 110 degrees conical |
| Impedance | 8 ohm |
| 70V operation | Yes |
| Back can | Included |
| Sold as | Pair |
| Catalog price | $590.00 |
Figures are JBL’s published specifications for the Control 47LP. Nothing here was measured on this site.
The limitation: ceiling speakers are wrong for a worship band
This is the most important paragraph on the page, and it costs us a sale. A distributed ceiling system points sound down at people from directly above. That produces very even speech coverage and it produces music with no impact and no apparent source: the congregation hears the band from the ceiling rather than from the platform, and a 6.5 inch driver in a can cannot reproduce a kick drum at any level worth having.
Churches install ceiling systems for sanctuaries because they are visually discreet and because a contractor quoted them, and then spend the next decade adding more of them trying to fix the result. If a band plays in your main room, buy point source loudspeakers on the platform and use ceiling speakers for the overflow room, the foyer and the corridors. Read ceiling versus wall-mounted speakers before signing anything.
What owners consistently report
Published owner reviews describe the Control 47LP as even, clear on speech and straightforward to install, with the included back can singled out as the reason installers keep specifying it. The low profile draws praise in retrofits where plenum depth is limited.
The consistent criticisms are exactly what the physics predicts: limited low frequency output and a lack of impact on music. Owners using them for background music and speech are satisfied; owners who expected a sanctuary music system are not. Price per pair is also mentioned, as these are professional install speakers rather than consumer ceiling units.
Alternatives worth considering instead
High ceilings, because 110 degrees covers too much from twenty feet: the Control 47HC at $794.00 narrows to 75 degrees so the coverage circle stays useful.
Better on music, because some rooms need it: the Bose DesignMax DM5C at $821.00 has unusually even off-axis response, which is what makes a distributed system sound like one system.
Budget pick, because ancillary spaces need coverage not quality: the Atlas FAP62T at $350.95 is a complete 70V system with baffle, can and transformer in one part number.
Who should buy it, and who should not
Buy it for a fellowship hall, a cry room, an overflow space, a corridor system or a flat-ceilinged chapel where the service is speech and a hymn. Buy it when the ceiling is a standard suspended grid and the plenum depth is limited.
Do not buy it as the main system for a sanctuary with a band. Size the amplifier and the tap structure with the 70 volt system calculator, read 70 volt versus 8 ohm to decide how to wire it, and follow the 70 volt wiring guide for the install itself.
Sources
- JBL Professional Control Contractor series published specification sheet
- JBL Control 47 series installation documentation
- Consensus of verified owner reviews published on major retailer listings
Frequently asked questions
Can ceiling speakers work as a church main system?
For a speech-led traditional service in a low flat-ceilinged room, they can be acceptable. For contemporary worship with a band, no. Sound arriving from directly overhead has no apparent source and no impact, and a 6.5 inch driver cannot reproduce low end. Churches that install ceiling systems for a band usually end up replacing them.
How many Control 47LP speakers does a room need?
It depends on ceiling height and the overlap pattern you choose, not on floor area alone. A 110 degree speaker at a ten foot ceiling covers a much smaller circle than the same speaker at eighteen feet. Run your ceiling height through the ceiling speaker spacing calculator, which gives spacing and count at edge to edge, minimum overlap and tight overlap.
Control 47LP or 47HC for a high ceiling?
The 47HC, above roughly sixteen feet. Its narrower 75 degree pattern keeps the coverage circle a usable size, whereas a 110 degree speaker from twenty feet up covers a huge area very thinly and arrives at listeners weak and diffuse. Using low-ceiling speakers in a high-ceilinged room is the most common ceiling system design error.
Do I need 70 volt or 8 ohm wiring?
Use 70V for any distributed system with more than about four speakers or long cable runs, because it lets many speakers share one amplifier and keeps cable losses small. Use 8 ohm for a handful of speakers close to the rack. Our 70 volt versus 8 ohm comparison covers where the crossover point sits for a church.
Can volunteers install ceiling speakers themselves?
The speakers themselves are straightforward, but the wiring usually is not. Cable in a ceiling void or plenum must be rated for that space and installed to local code, and any new circuit for the amplifier rack is a licensed electrician’s job. Churches that skip this often find out during an insurance inspection rather than during the install.
Researched, not professional advice. This page is compiled from published manufacturer specifications, operator manuals, FCC rules, published standards and owner-review consensus, not hands-on testing. Sound system design, rigging loudspeakers overhead, and any electrical work are jobs for a qualified professional: have flown loudspeakers and their attachment points signed off by a structural engineer or a certified rigger, and have all wiring done by a licensed electrician to your local code. Wireless microphone rules change, so confirm the current FCC position before buying. As an Amazon Associate we earn from qualifying purchases.