RCF NX 915-A vs RCF ART 745-A MK5

Short answer: the RCF ART 745-A MK5 for most buyers, the NX 915-A if you specifically need its plywood build and rigging. These rank #17 and #18 out of 29 15-inch powered PA speakers, separated by a $242 price gap.

Neither has a confirmed preference score. The NX 915-A’s truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. The ART 745-A MK5’s low-quality vendor measurement is also truncated and cannot generate a preference score, so both boxes’ tonal position relies on published engineering rather than confirmed results.

Build and rigging are the real differentiators. The NX 915-A uses a polyurea-coated plywood enclosure with FiRPHASE/Bass Motion Control processing and flexible rigging, positioned as a sturdier systems alternative to the ART line, with a wide 100 degree x 60 degree pattern and 131dB claimed peak. Its own review notes it is notably heavier than the ART-series alternatives at 24.1kg. The ART 745-A MK5 uses a polypropylene composite cabinet at a much lighter 18.8kg, with a 90 degree x 60 degree pattern and a slightly higher 133dB claimed peak, carrying the same FiRPHASE processing down from the top of the ART7 range.

Price favors the ART. At $1299 the ART 745-A MK5 undercuts the NX 915-A’s $1541, while sharing the same RCF electronics heritage.

Buy the RCF ART 745-A MK5 for a lighter cabinet, higher claimed peak, and lower price with the same FiRPHASE processing.

Buy the RCF NX 915-A if you need its sturdier plywood construction and flexible rigging for a fixed or touring system.

Specifications Side By Side

Related Speaker Comparisons

More useful head-to-heads from the same speaker class:

• Vue Audiotechnik A-15 vs LD Systems Stinger 15-A-G3
• Electro-Voice MFX-15MC vs RCF ART 715-A MK5
• Vue Audiotechnik A-15 vs RCF ART 745-A MK4
• RCF ART 715-A MK5 vs RCF NX 915-A
• RCF ART 745-A MK5 vs Vue Audiotechnik A-15

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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

RCF NX 915-A: $1,541.00 Amazon B&H Photo Video Guitar Center eBay

Pros: The plywood enclosure, FiRPHASE/Bass Motion Control processing and flexible rigging make it a sturdier systems alternative to the ART 715-A MK5, with a wide 100° x 60° pattern and 131dB claimed peak.

Cons: The truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. At 24.1kg it is notably heavier than the ART-series alternatives.

Full RCF NX 915-A review and specifications →

Amplifier Power	2100W peak (1400W LF + 700W HF)
Bass Extension (-3dB)	53Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	Polyurea-coated plywood
Configuration	Active 2-way bass-reflex PA speaker
Coverage	100° x 60°
Crossover Frequency	1600Hz
DSP	Yes, FiRPHASE and Bass Motion Control
Dimensions	27.8"H x 16.5"W x 17.7"D (705 x 419.6 x 450.4 mm)
Drivers	15" woofer, compression driver
Frequency Response	45Hz - 20kHz (manufacturer specified)
Inputs	XLR/TRS combo input and XLR output
Maximum SPL	131dB peak (manufacturer specified)
Rigging	6 x M10 inserts
Weight	53.1 lbs / 24.1 kg

• Links
  • RCF NX 915-A Product Information
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • RCF NX 915-A vs RCF ART 715-A MK5
  • RCF NX 915-A vs Electro-Voice MFX-15MC
  • RCF NX 915-A vs Vue Audiotechnik A-15

RCF ART 745-A MK5: $1,299.00 Amazon B&H Photo Video Guitar Center eBay

Pros: The top of the ART7 range pairs 133dB claimed peak output with a light 18.8kg enclosure, RCF’s largest ART7-tier compression driver and FiRPHASE processing carried over from the smaller 712/732-A MK5 models.

Cons: The low-quality vendor measurement is truncated and cannot generate a preference score, so its tonal position relies on published engineering rather than a confirmed result.

Full RCF ART 745-A MK5 review and specifications →

Amplifier Power	1400W peak (1000W LF + 400W HF)
Bass Extension (-3dB)	65Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	PP composite
Configuration	Active 2-way bass-reflex PA speaker
Coverage	90° x 60°
Crossover Frequency	650Hz
DSP	Yes, FiRPHASE, EQ, limiting and protection
Dimensions	27.9"H x 17.2"W x 15.3"D (708 x 437 x 389 mm)
Drivers	15" woofer, 1.4" exit/3" diaphragm compression driver
Frequency Response	45Hz - 20kHz (manufacturer specified)
Inputs	XLR and 1/4-inch jack input; XLR output
Maximum SPL	133dB peak (manufacturer specified)
Rigging	2 x M10 inserts; 35mm pole mount
Weight	41.4 lbs / 18.8 kg

• Links
  • RCF ART 745-A MK5 Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • RCF ART 745-A MK5 vs Vue Audiotechnik A-15
  • RCF ART 745-A MK5 vs LD Systems Stinger 15-A-G3
  • RCF ART 745-A MK5 vs RCF ART 715-A MK5