The FBT Mitus 115A is rated 3.7/5 for sound quality, #25 of 76 15-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
#25 FBT Mitus 115A: $1,790 Thomann $1,790 eBay
Same family: the FBT Mitus 152A (larger model, ranked lower, rated 2.9/5) and the FBT Mitus 215A (larger model, ranked lower, rated 2.7/5).
Pros: A premium powered 15 inch PA speaker with a neodymium woofer and rotatable horn for main speaker use. Medium-quality vendor data returns a 4.87 ideal-subwoofer preference score, continuing the FBT Mitus 112A’s B&C neodymium woofer and rotatable horn design in a 15-inch cabinet aimed at premium main-speaker use. Measured bass extension of 92.5Hz (-3dB).
Cons: The measured bass extension (roughly 92Hz) is shallower than most 15-inch rivals here, and at a roughly $1790 asking price it is one of the more expensive boxes in this ranking.
Is the FBT Mitus 115A right for you?
Skip it if
- you want neutral sound: its measured preference score is 4.9 even with a subwoofer.
- you will not add a subwoofer: bass rolls off below about 92 Hz.
- you want the best value: the higher-rated Yamaha DZR15 costs about $270 less.
| AES Input | No |
|---|---|
| Amplifier Power | 900W RMS (600W LF + 300W HF, manufacturer specified) |
| Aux Input | No |
| Bass Extension (-3dB) | 92.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | 15mm birch plywood |
| Coaxial Input | No |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 80° x 50° (rotatable horn) |
| Crossover Frequency | 1.5kHz (manufacturer specified) |
| DSP | Yes |
| Dimensions | 29.3”H x 16.7”W x 16.6”D (745 x 425 x 421 mm) |
| Drivers | 15” B&C neodymium woofer, compression driver |
| Frequency Response | 46Hz - 20kHz (-6dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | XLR input with link output |
| Maximum SPL | 133dB peak / 127dB continuous |
| Microphone Input | No |
| Optical Input | No |
| Passive | No |
| RCA Input | No |
| Rigging | Twelve M10 fly points; 35mm pole socket |
| Spinorama Preference Score | 1.62 |
| Spinorama Preference Score with Perfect Sub | 4.87 |
| TRS Input | No |
| USB Input | No |
| Weight | 63.9 lbs (29 kg) |
| XLR Input | Yes |
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Frequency Response
How the FBT Mitus 115A 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 Mitus 115A's own bass extension up to 16 kHz. Set a preamp of -1.7 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: 2.2, up from 1.6 (5.5 with an ideal subwoofer, up from 4.9). Calculated by Speaker Ranking from the spinorama measurements above.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 8,000 Hz | -0.6 dB | 0.70 |
| Peak | 3,341 Hz | +1.7 dB | 1.33 |
| Peak | 9,260 Hz | -2.6 dB | 1.94 |