LD Systems DDQ15 Review: Rated 3.9/5

The LD Systems DDQ15 is rated 3.9/5 for sound quality, #16 of 76 15-Inch PA Speakers. See all PA & Live Sound rankings for every top pick.

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Brand: LD Systems

#16 LD Systems DDQ15: $1,800 Discontinued eBay

Same family: the LD Systems DDQ12 (smaller model, rated 3.8/5).

Pros: A touring grade powered 15 inch PA speaker with good sound, deep bass and premium drivers in a birch cabinet. 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. Measured bass extension of 47.5Hz (-3dB).

Cons: 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. Discontinued.

Released	2014 (12 years ago)
AES Input	No
Amplifier Power	1,400W RMS (2 x 700W Class D, manufacturer specified)
Aux Input	No
Bass Extension (-3dB)	47.5Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	15/18mm birch plywood with Polyurea finish
Coaxial Input	No
Configuration	Active 2-way bi-amped bass-reflex PA speaker
Coverage	80° x 50°, rotatable
Crossover Frequency	1.3kHz (manufacturer specified)
DSP	Yes, 24-bit/48kHz Sharc DSP with 1ms look-ahead limiter
Dimensions	30”H x 16.5”W x 19.2”D (763 x 420 x 488 mm)
Drivers	15” Faital Pro neodymium woofer, BMS compression driver
Frequency Response	38Hz - 20kHz (manufacturer specified)
Guitar Input	No
HDMI Input	No
Inputs	XLR line input
Maximum SPL	136dB peak (manufacturer specified)
Microphone Input	No
Optical Input	No
Outputs	XLR link output, XLR sub output
Passive	No
RCA Input	No
Rigging	13 M10 fly points; 36mm pole flange
Spinorama Preference Score	3.77
Spinorama Preference Score with Perfect Sub	5.79
Subwoofer Output	Yes
TRS Input	No
USB Input	No
Weight	69.4 lbs (31.5 kg)
XLR Input	Yes

• Links
  • LD Systems DDQ 15 Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements

Frequency Response

How the LD Systems DDQ15 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.

Listening windowEstimated in-room response

Measurement data: spinorama.org, measured by the manufacturer.

EQ for a Neutral Response

Head-to-Head Comparisons

4 comparisons

• LD Systems DDQ15 vs JBL PRX915
• LD Systems DDQ15 vs RCF ART 935-A
• LD Systems DDQ15 vs Axiom ED150A
• LD Systems DDQ15 vs Yamaha DZR15

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