The FBT J12A is rated 3.7/5 for sound quality, #37 of 83 12-Inch PA Speakers. See all PA & Live Sound rankings for every top pick.
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Brand: FBT
#37 FBT J12A: $450 Discontinued eBay
Pros: A light, affordable 12 inch powered PA speaker with a simple mixer and monitor angle for small bands and rehearsal spaces. A light, affordable cabinet with medium-quality vendor Spinorama coverage and 54Hz measured bass extension. Its simple mixer and monitor angle suit small bands, speech systems and rehearsal spaces that value portability. Measured bass extension of 54Hz (-3dB).
Cons: The 5.20 ideal-subwoofer preference score and uneven supplied response keep it below the more refined choices. Output, processing and cabinet construction are oriented toward value rather than demanding touring use. Discontinued.
| Released | 2013 (13 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 450W RMS (350W LF + 100W HF, manufacturer specified) |
| Aux Input | No |
| Bass Extension (-3dB) | 54Hz (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 | 26.1”H x 16.1”W x 15.2”D (663 x 410 x 387 mm) |
| Drivers | 12” woofer, compression driver |
| Frequency Response | 50Hz - 20kHz (-6dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | XLR/jack input with link output |
| Maximum SPL | 127dB peak / 123dB continuous |
| Microphone Input | No |
| Optical Input | No |
| Passive | No |
| RCA Input | No |
| Rigging | 35mm internal pole mount, 2x M10 anchoring points |
| Spinorama Preference Score | 2.72 |
| Spinorama Preference Score with Perfect Sub | 5.20 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 32.8 lbs (14.9 kg) |
| XLR Input | Yes |
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Frequency Response
How the FBT J12A 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 J12A's own bass extension up to 16 kHz. Set a preamp of -2.5 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: 3.0, up from 2.7 (5.5 with an ideal subwoofer, up from 5.2). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Peak | 76 Hz | -5.2 dB | 2.00 |
| Peak | 352 Hz | -2.0 dB | 1.83 |
| Peak | 1,023 Hz | -1.3 dB | 4.00 |
| Peak | 1,356 Hz | +1.5 dB | 4.00 |
| Peak | 2,575 Hz | +2.4 dB | 3.49 |
| Peak | 10,914 Hz | -2.3 dB | 4.00 |
| Peak | 13,825 Hz | +2.1 dB | 4.00 |
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