Short answer: choose between the Yamaha DZR15 and LD Systems DDQ15 for the deployment, not from the automatic ranking alone. Their driver format, power requirements, coverage, bass reach, output capability, and control features determine which is the more practical PA for a particular room or system.
The case for the Yamaha DZR15. Medium-quality vendor data returns a 5.25 ideal-subwoofer preference score with 39Hz measured extension, deeper than the DZR12. The bi-amped 2-inch compression driver and sophisticated onboard DSP target serious main-speaker duty.
The case for the LD Systems DDQ15. Medium-quality vendor data returns a 5.79 ideal-subwoofer preference score, among the best in this ranking, with 42Hz measured extension. A Faital Pro woofer, BMS compression driver, birch-ply cabinet and biamped Hypex Class-D modules with a 24-bit Sharc DSP give it genuine touring-class engineering.
Important trade-offs. The bass-extension figure comes from truncated manufacturer data and should be read cautiously. LD Systems has a smaller professional-audio service network than JBL, Yamaha or RCF in North America, and the rotatable HF horn’s 80° x 50° pattern is on the narrower side for wide-audience main use.
Buy the Yamaha DZR15 when its stated format, coverage, and system features fit the job better.
Buy the LD Systems DDQ15 when its stated output, control, and deployment strengths better match the system.
Want more options? Browse the full PA & Live Sound rankings.
A powered 15 inch PA speaker with good sound, very deep bass and advanced onboard DSP for main speaker duty.
A touring grade powered 15 inch PA speaker with good sound, deep bass and premium drivers in a birch cabinet.
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Specifications Side By Side
| Yamaha DZR15 | LD Systems DDQ15 | |
|---|---|---|
| Price | $1,519.99 | $1,800 Discontinued |
| Ranked | #12 of 76 in 15-Inch PA Speakers | #16 of 76 in 15-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bi-amped bass-reflex PA speaker | Active 2-way bi-amped bass-reflex PA speaker |
| Drivers | 15” woofer, 2” compression driver | 15” Faital Pro neodymium woofer, BMS compression driver |
| Frequency Response | 34Hz - 20kHz (-10dB, manufacturer specified) | 38Hz - 20kHz (manufacturer specified) |
| Dimensions | 30”H x 17.7”W x 18.1”D (761 x 450 x 460 mm) | 30”H x 16.5”W x 19.2”D (763 x 420 x 488 mm) |
| Coverage | 90° x 50°, rotatable | 80° x 50°, rotatable |
| Maximum SPL | 139dB peak (manufacturer specified) | 136dB peak (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo; 2 x XLR output | XLR line input |
| Amplifier Power | 2000W dynamic / 1100W burst / 950W continuous | 1,400W RMS (2 x 700W Class D, manufacturer specified) |
| Crossover Frequency | 1700Hz (FIR-X) | 1.3kHz (manufacturer specified) |
| Cabinet Material | Plywood with polyurea coating | 15/18mm birch plywood with Polyurea finish |
| Rigging | 12 x M10 points; dual 35mm pole mounts | 13 M10 fly points; 36mm pole flange |
| Bass Extension (-3dB) | 46.2Hz (measured, vendor Spinorama data) | 47.5Hz (measured, vendor Spinorama data) |
| DSP | Yes, FIR-X tuning and Drive Motion Calibration | Yes, 24-bit/48kHz Sharc DSP with 1ms look-ahead limiter |
| Bluetooth | No | No |
| Weight | 55.6 lbs (25.2 kg) | 69.4 lbs (31.5 kg) |
| Spinorama Preference Score | 3.35 | 3.77 |
| Spinorama Preference Score with Perfect Sub | 5.25 | 5.79 |
| 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 |
| Subwoofer Output | - | Yes |
| Outputs | - | XLR link output, XLR sub output |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: Yamaha DZR15 (measured by the manufacturer) and LD Systems DDQ15 (measured by the manufacturer), via spinorama.org.
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