Short answer: the Yamaha DZR315. It ranks #21 of 76 15-inch pa speakers by sound quality, rated 3.8/5, at $1,884.99. The FBT Mitus 115A ranks #25, rated 3.7/5, at $1,790, $94.99 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Yamaha DZR315 is the deeper-bass pick. A powered three way 15 inch PA speaker with very high output and full DSP with a screen, able to cover a large room alone. Its bass reaches about 82.5Hz before falling 3dB, against 92.5Hz for the FBT Mitus 115A. Watch for: A 4.4dB reference band and a 7.19 directivity-index deviation mean tonal balance and off-axis consistency are uneven, and the standalone preference score is only 1.93.
The case for the FBT Mitus 115A: A premium powered 15 inch PA speaker with a neodymium woofer and rotatable horn for main speaker use. Watch for: 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.
Buy the Yamaha DZR315. It is rated higher for sound quality, and saving $94.99 with the FBT Mitus 115A does not make up for the sound-quality gap.
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Specifications Side By Side
| Yamaha DZR315 | FBT Mitus 115A | |
|---|---|---|
| Price | $1,884.99 | $1,790 |
| Ranked | #21 of 76 in 15-Inch PA Speakers | #25 of 76 in 15-Inch PA Speakers |
| Weight | 91.7 lbs (41.6 kg) | 63.9 lbs (29 kg) |
| Rigging | 16 x M10 rigging points | Twelve M10 fly points; 35mm pole socket |
| Passive | No | No |
| Configuration | Active 3-way PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15” woofer, 8” midrange, 2” compression driver | 15” B&C neodymium woofer, compression driver |
| Frequency Response | 31Hz - 20kHz (-10dB, manufacturer specified) | 46Hz - 20kHz (-6dB, manufacturer specified) |
| Amplifier Power | 2,000W Class-D bi-amplified | 900W RMS (600W LF + 300W HF, manufacturer specified) |
| Maximum SPL | 143dB (manufacturer specified) | 133dB peak / 127dB continuous |
| Coverage | 75° x 50° | 80° x 50° (rotatable horn) |
| DSP | Yes, 96kHz FIR DSP with LCD, presets, PEQ, delay | Yes |
| Bluetooth | No | No |
| XLR Input | Yes | Yes |
| 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 | No | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Bass Extension (-3dB) | 82.5Hz (measured, vendor Spinorama data) | 92.5Hz (measured, vendor Spinorama data) |
| Bass Extension (-10dB) | about 64.6Hz (measured, vendor Spinorama data) | - |
| Spinorama Preference Score | 1.93 | 1.62 |
| Spinorama Preference Score with Perfect Sub | 5.06 | 4.87 |
| Dimensions | - | 29.3”H x 16.7”W x 16.6”D (745 x 425 x 421 mm) |
| Inputs | - | XLR input with link output |
| Crossover Frequency | - | 1.5kHz (manufacturer specified) |
| Cabinet Material | - | 15mm birch plywood |
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