RCF NX 945-A vs JBL PRX915

Short answer: choose between the RCF NX 945-A and JBL PRX915 for the requirements of the venue and system, not from rank alone. In this size class, coverage, bass extension, output capability, DSP, cabinet construction, and service support often decide the better fit.

Why choose the RCF NX 945-A. The top NX-series 15-inch box pairs a plywood cabinet with a 135dB claimed peak, the highest in the NX range, and a wide 100° x 70° pattern. RCF’s FiRPHASE and Bass Motion Control processing carry over from the smaller NX models.

Why choose the JBL PRX915. 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.

What to weigh before buying. The measurement is truncated and does not produce a preference score, so its tonal position relies on published engineering rather than a confirmed result. At 27.3kg it is heavier than the ART 945-A alternative. 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.

Buy the RCF NX 945-A when its stated coverage, output, processing, and deployment format best match the job.

Buy the JBL PRX915 when its stated strengths are the better match for the room and the rest of the PA.

Specifications Side By Side

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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

RCF NX 945-A: $2,299.00 Amazon B&H Photo Video Guitar Center eBay

Pros: The top NX-series 15-inch box pairs a plywood cabinet with a 135dB claimed peak, the highest in the NX range, and a wide 100° x 70° pattern. RCF’s FiRPHASE and Bass Motion Control processing carry over from the smaller NX models.

Cons: The measurement is truncated and does not produce a preference score, so its tonal position relies on published engineering rather than a confirmed result. At 27.3kg it is heavier than the ART 945-A alternative.

Full RCF NX 945-A review and specifications →

Amplifier Power	2100W peak (1400W LF + 700W HF)
Bass Extension (-3dB)	65Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	Plywood
Configuration	Active 2-way bass-reflex PA speaker
Coverage	100° x 70°
Crossover Frequency	650Hz
DSP	Yes, FiRPHASE and Bass Motion Control
Dimensions	27.8"H x 16.5"W x 17.8"D (705 x 420 x 451 mm)
Drivers	15" woofer, compression driver
Frequency Response	45Hz - 20kHz (manufacturer specified)
Inputs	XLR/TRS combo input and XLR output
Maximum SPL	135dB peak (manufacturer specified)
Rigging	M10 and quick-lock rigging; 35mm pole mount
Weight	60.2 lbs / 27.3 kg

• Links
  • RCF NX 945-A Product Information
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • RCF NX 945-A vs HK Audio LINEAR 7 115 FA
  • RCF NX 945-A vs KV2 Audio EX15
  • RCF NX 945-A vs RCF KX 45-A
  • RCF NX 945-A vs Yamaha DZR15
  • RCF NX 945-A vs Vue Audiotechnik H-15
  • RCF NX 945-A vs RCF ART 945-A
  • RCF NX 945-A vs RCF ART 935-A
  • RCF NX 945-A vs Yamaha DXR15mkIII
  • See all 19 comparisons

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 LD Systems DDQ15
  • JBL PRX915 vs KV2 Audio EX15
  • JBL PRX915 vs RCF ART 935-A
  • JBL PRX915 vs Yamaha DXR15mkIII
  • JBL PRX915 vs RCF KX 45-A
  • JBL PRX915 vs Yamaha DXR15mkII
  • JBL PRX915 vs RCF ART 945-A
  • See all 19 comparisons