The FBT ProMaxX 112A is rated 4.5/5 for sound quality, #4 of 83 12-Inch PA Speakers. See all PA & Live Sound rankings for every top pick.
Prices on this page were last checked October 24, 2026 at 4:42 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Brand: FBT
#4 FBT ProMaxX 112A: $722 Thomann $722 eBay
Same family: the FBT ProMaxX 110A (smaller model, rated 4.1/5) and the FBT Promaxx 114A (larger model, rated 3.9/5).
Pros: An excellent sounding 12 inch powered PA speaker, with smooth, accurate tone and high output at a great price. Medium-quality vendor data yields a strong 7.21 ideal-subwoofer preference score, second only to the QSC among the scored mainstream models here. Its smooth tonal result and high-output PA format make it a compelling value when it is available locally. Measured bass extension of 68Hz (-3dB).
Cons: Measured bass extension is only 68Hz, so it needs a subwoofer sooner than most 12-inch competitors. Distribution and service availability are less universal than QSC, JBL, Yamaha or RCF.
| Released | 2016 (10 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 900W RMS (700W LF + 200W HF); 1,800W peak (1,400W LF + 400W HF) |
| Aux Input | No |
| Bass Extension (-3dB) | 68Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Polypropylene |
| Coaxial Input | No |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 90° x 60° |
| DSP | Yes |
| Dimensions | 25.4”H x 15.8”W x 13.6”D (644 x 402 x 345 mm) |
| Drivers | 12” woofer, compression driver |
| Frequency Response | 48Hz - 20kHz (-6dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | XLR combo input, XLR male output, RCA stereo input |
| Maximum SPL | 133dB peak / 126dB continuous |
| Microphone Input | No |
| Optical Input | No |
| Passive | No |
| RCA Input | Yes |
| Rigging | 2x M10 suspension points, 35mm pole-mount socket, wall-bracket flange plate |
| Spinorama Preference Score | 4.30 |
| Spinorama Preference Score with Perfect Sub | 7.21 |
| TRS Input | No |
| USB Input | No |
| Weight | 39.9 lbs (18.1 kg) |
| XLR Input | Yes |
Price history
$722 is 26 percent above its typical $575 over the last three months, and it has been as low as $575 (Sep 2026). It may be worth waiting for a sale.
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Frequency Response
How the FBT ProMaxX 112A measures across the audible range. A flatter listening window (the sound arriving straight at you) is more neutral: peaks sound forward or harsh, dips sound recessed. The estimated in-room response adds what a typical room does, and there a gentle, even tilt down toward the treble is ideal. Both curves are shifted so their 300 Hz to 3 kHz average sits at 0 dB.
Measurement data: spinorama.org, measured by the manufacturer.
EQ for a Neutral Response
Flattens the measured listening window from the FBT ProMaxX 112A's own bass extension up to 16 kHz. Set a preamp of -1.9 dB, then add these filters to any parametric equalizer in the signal path: the speaker's app or DSP if it has parametric EQ, a miniDSP, Equalizer APO or Wavelet. Boosts are kept to 3 dB, and EQ cannot fix how evenly the speaker spreads sound off-axis, which is why some speakers gain more than others. Predicted preference score with this EQ: 4.7, up from 4.3 (7.7 with an ideal subwoofer, up from 7.2). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 8,000 Hz | +0.4 dB | 0.70 |
| Peak | 301 Hz | -1.1 dB | 1.56 |
| Peak | 1,096 Hz | -1.1 dB | 3.62 |
| Peak | 2,413 Hz | +1.1 dB | 4.00 |
| Peak | 4,009 Hz | +1.5 dB | 0.96 |
| Peak | 14,237 Hz | -2.3 dB | 3.19 |