JBL PRX915 vs LD Systems DDQ15

Short answer: the DDQ15 on measured performance, the PRX915 if brand service network matters more. These rank #8 and #9 of 29 15-inch powered PA speakers, priced $701 apart.

The DDQ15 measures well ahead. Its vendor data returns a 4.98 ideal-subwoofer preference score, among the best in this size class, with 42Hz measured extension, from a Faital Pro woofer, BMS compression driver and biamped Hypex Class-D modules running a 24-bit Sharc DSP, genuine touring-class engineering. The PRX915’s own high-quality data shows a 4.02 preference score with a shallower 51Hz extension, and its cons note it specifically trails the smaller PRX912 on measured preference.

The PRX915 has the wider support network and app control. It carries a 12-band parametric EQ with dbx DriveRack feedback suppression and Bluetooth control through JBL’s Pro Connect app, backed by JBL’s extensive service network. The DDQ15’s own cons acknowledge LD Systems has a smaller professional-audio service network than JBL, Yamaha or RCF in North America, and its rotatable HF horn’s 80° x 50° pattern is on the narrower side for wide-audience main use against the PRX915’s 90° x 50°.

Weight is close: the PRX915 at 24.1kg against the DDQ15’s birch-ply cabinet, and the DDQ15 claims a higher 136dB peak versus the PRX915’s 133dB.

Buy the DDQ15 if measured bass extension and preference score matter most and you can source parts and service outside the major brands.

Buy the PRX915 if you want app control, Bluetooth, and JBL’s broader dealer and service network.

Specifications Side By Side

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• RCF ART 935-A vs Yamaha DXR15mkIII
• HK Audio LINEAR 7 115 FA vs Yamaha DZR15
• RCF ART 935-A vs Axiom ED150A
• Yamaha DZR15 vs LD Systems DDQ15
• JBL PRX915 vs RCF ART 935-A

Prices on this page were last checked September 7, 2026 at 7:47 AM 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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The Two Speakers In Full

JBL PRX915: $1,099.00 Amazon B&H Photo Video Guitar Center eBay

Pros: High-quality vendor data shows a 4.02 ideal-subwoofer preference score with 51Hz measured extension, backed by JBL’s extensive service network and 12-band parametric EQ with dbx DriveRack feedback suppression carried over from the PRX912.

Cons: Its measured preference trails the 12-inch PRX912, and at 24.1kg it is meaningfully heavier to carry to a gig than the smaller model.

Full JBL PRX915 review and specifications →

Amplifier Power	2000W peak / 1000W RMS
Bass Extension (-3dB)	58Hz (measured, vendor Spinorama data)
Bluetooth	Yes, control via JBL Pro Connect app
Cabinet Material	Polypropylene/talc composite
Configuration	Active 2-way bass-reflex PA speaker
Coverage	90° x 50°
Crossover Frequency	1920Hz
DSP	Yes, 12-band parametric EQ and dbx DriveRack
Dimensions	28.2"H x 18.3"W x 15.1"D (717 x 465 x 383 mm)
Drivers	15" woofer, 1.5" compression driver
Frequency Response	48Hz - 19kHz (-10dB, manufacturer specified)
Inputs	2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputs
Maximum SPL	133dB peak (manufacturer specified)
Rigging	6 x M10 suspension points; dual 36mm pole sockets
Weight	53.1 lbs / 24.1 kg

• Links
  • JBL PRX915 Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • JBL PRX915 vs Yamaha DZR15
  • JBL PRX915 vs KV2 Audio EX15
  • JBL PRX915 vs RCF ART 935-A

LD Systems DDQ15: $1,800.00 eBay

Pros: Medium-quality vendor data returns a 4.98 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.

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.

Full LD Systems DDQ15 review and specifications →

Amplifier Power	1,400W RMS (2 x 700W Class D, manufacturer specified)
Bass Extension (-3dB)	47.5Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	15/18mm birch plywood with Polyurea finish
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)
Inputs	XLR line input, XLR link output and XLR sub output
Maximum SPL	136dB peak (manufacturer specified)
Rigging	13 M10 fly points; 36mm pole flange

• Links
  • LD Systems DDQ 15 Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • LD Systems DDQ15 vs RCF ART 935-A
  • LD Systems DDQ15 vs Yamaha DZR15
  • LD Systems DDQ15 vs Axiom ED150A