Short answer: the QSC K12.2. It ranks #1 of 83 12-inch pa speakers by sound quality, rated 4.7/5, at $899.99; the L-Acoustics X12 ranks #3, rated 4.6/5, and costs $3,170, so there is not much of a tradeoff to weigh.
The QSC K12.2 is the deeper-bass choice. A reliable 12 inch PA speaker with excellent sound and flexible built in processing, a safe choice for most events. Its bass reaches about 48Hz before falling 3dB, against 78Hz for the L-Acoustics X12. It keeps a wired aux input, which the L-Acoustics X12 lacks. The tradeoff: The underlying Spinorama source is low quality, so its apparent measured lead deserves caution.
What the L-Acoustics X12 does well: An excellent sounding 12 inch PA speaker, a passive coaxial cabinet with highly accurate, consistent sound across its whole coverage area. The tradeoff: This is a passive cabinet that needs an L-Acoustics amplified controller such as the LA4X or LA12X, so the box alone will not play.
Buy the QSC K12.2. It is rated higher for sound quality than the L-Acoustics X12 and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
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Specifications Side By Side
| QSC K12.2 | L-Acoustics X12 | |
|---|---|---|
| Price | $899.99 | $3,170 Passive |
| Ranked | #1 of 83 in 12-Inch PA Speakers | #3 of 83 in 12-Inch PA Speakers |
| Passive | No | Yes |
| Configuration | Active 2-way bass-reflex PA speaker | Passive 2-way coaxial PA speaker |
| Drivers | 12” woofer, 1.4” compression driver | 12” cone woofer, 3” neodymium compression driver (coaxial) |
| Frequency Response | 45Hz - 20kHz (-10dB, manufacturer specified) | 59Hz - 20kHz (manufacturer specified) |
| Dimensions | 23.7”H x 14”W x 13.8”D (602 x 356 x 350 mm) | 19.5”H x 16.9”W x 14.8”D (496 x 430 x 375 mm) |
| Amplifier Power | 2025W peak (1800W LF + 225W HF) | Passive speaker; requires an L-Acoustics amplified controller (LA2Xi, LA4X, LA8 or LA12X) |
| Cabinet Material | Impact-resistant ABS | Baltic beech and birch plywood |
| Rigging | 2 x M10 inserts and pull-back point; 35mm pole mount | M8 and M10 threaded inserts, 35mm pole socket, dual handles |
| Bass Extension (-3dB) | 48Hz (measured, vendor Spinorama data) | 78Hz (measured, vendor Spinorama data) |
| Coverage | 75° conical | 90° x 60° |
| Maximum SPL | 132dB peak (manufacturer specified) | 136dB (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo, 3.5mm aux | Speakon 4-pole input and link |
| DSP | Yes | No (passive; processing and protection come from the amplified controller) |
| Bluetooth | No | No |
| Weight | 39 lbs (17.7 kg) | 44.1 lbs (20 kg) |
| Spinorama Preference Score | 5.46 | 5.60 |
| Spinorama Preference Score with Perfect Sub | 7.73 | 8.52 |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
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