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 Coda Audio G512 ranks #39, rated 3.6/5, and costs $2,520, which makes this an easy call rather than a real tradeoff.
The QSC K12.2 is the more accurate, deeper-bass choice. A reliable 12 inch PA speaker with excellent sound and flexible built in processing, a safe choice for most events. Its measured preference score, a predictor of how neutral it sounds, is 5.46 against 3.04 for the Coda Audio G512. Its bass reaches about 48Hz before falling 3dB, against 112Hz for the Coda Audio G512. It keeps a wired aux input, which the Coda Audio G512 lacks. The catch: The underlying Spinorama source is low quality, so its apparent measured lead deserves caution.
Why pick the Coda Audio G512: A light passive 12 inch PA speaker that is easy to drive, with a rotatable waveguide for horizontal or vertical placement. The tradeoff: Measured bass reaches only about 112Hz (-3dB), and listening-window narrow-band deviation is 0.531, so the tonal balance is thin and uneven compared with the leaders in this ranking.
Buy the QSC K12.2. It is rated higher for sound quality than the Coda Audio G512 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete PA & Live Sound rankings.
Measured Differences
- Bass depth: the QSC K12.2 reaches 48 Hz (3 dB down) against 112 Hz for the Coda Audio G512, about an octave deeper. Low bass that the other only hints at comes through with real weight.
- Tonal accuracy above the bass: with a subwoofer taking the low end, the QSC K12.2 scores 7.7 against 6.1 for the Coda Audio G512 on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
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Specifications Side By Side
| QSC K12.2 | Coda Audio G512 | |
|---|---|---|
| Price | $899.99 | $2,520 Passive |
| Ranked | #1 of 83 in 12-Inch PA Speakers | #39 of 83 in 12-Inch PA Speakers |
| Passive | No | Yes |
| Configuration | Active 2-way bass-reflex PA speaker | Passive 2-way bass-reflex PA speaker |
| Drivers | 12” woofer, 1.4” compression driver | 12” neodymium woofer, 1” compression driver on a rotatable elliptical waveguide |
| Frequency Response | 45Hz - 20kHz (-10dB, manufacturer specified) | 60Hz - 22kHz (-6dB, manufacturer specified) |
| Dimensions | 23.7”H x 14”W x 13.8”D (602 x 356 x 350 mm) | 24.8”H x 13.7”W x 12.6”D (630 x 348 x 320 mm) |
| Amplifier Power | 2025W peak (1800W LF + 225W HF) | Passive speaker; requires external amplification within the 600W handling rating |
| Cabinet Material | Impact-resistant ABS | - |
| Rigging | 2 x M10 inserts and pull-back point; 35mm pole mount | M6 and M8 threaded points for optional U-bracket |
| Bass Extension (-3dB) | 48Hz (measured, vendor Spinorama data) | 112Hz (measured, vendor Spinorama data) |
| Coverage | 75° conical | 90° x 60° (rotatable) |
| Maximum SPL | 132dB peak (manufacturer specified) | 132dB peak (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo, 3.5mm aux | - |
| DSP | Yes | No (passive) |
| Bluetooth | No | No |
| Weight | 39 lbs (17.7 kg) | 35.3 lbs (16.0 kg) |
| Spinorama Preference Score | 5.46 | 3.04 |
| Spinorama Preference Score with Perfect Sub | 7.73 | 6.11 |
| 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 |
| Power Handling | - | 600W (manufacturer specified) |
| Sensitivity | - | 98dB |
Where the Ratings Come From
- QSC K12.2: Spinorama.org measurements.
- Coda Audio G512: Spinorama.org measurements.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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