HK Audio LINEAR 7 115 FA vs RCF NX 945-A

Short answer: the LINEAR 7 115 FA for confirmed measured performance, the NX 945-A for raw claimed output. These rank #4 and #5 of 29 15-inch powered PA speakers, priced $300 apart.

The LINEAR 7 115 FA has an actual, high-quality measured result. Its vendor data returns a 5.15 ideal-subwoofer preference score with 60Hz measured extension, backed by MILAN/AVB networking, a 10-band parametric EQ and a rotatable constant-directivity horn for professional deployment. The NX 945-A’s measurement is truncated and does not produce a preference score, so its tonal position relies on published engineering rather than a confirmed result, even though it claims the higher 135dB peak, the top of RCF’s NX range, from a wider 100° x 70° pattern against the LINEAR 7’s narrower 60° x 40°.

Weight favors the RCF slightly: 27.3kg against the LINEAR 7’s 32kg, and the LINEAR 7’s own cons note it is a heavy cabinet for a 15-inch box whose networking is only worth the premium if you actually use it. Both use FIR-style processing, the LINEAR 7 through DSP CONTROL software and the NX 945-A through RCF’s FiRPHASE and Bass Motion Control, and neither has Bluetooth.

Buy the LINEAR 7 115 FA if you want a confirmed preference score and are building a networked system.

Buy the NX 945-A if you want the wider coverage pattern and the higher claimed SPL and are comfortable buying without a computed preference score.

Specifications Side By Side

Related Speaker Comparisons

A few more comparisons worth a look in the same class:

• RCF ART 945-A vs RCF KX 45-A
• KV2 Audio EX15 vs JBL PRX915
• KV2 Audio EX15 vs Yamaha DZR15
• HK Audio LINEAR 7 115 FA vs Yamaha DZR15
• RCF KX 45-A vs HK Audio LINEAR 7 115 FA

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

HK Audio LINEAR 7 115 FA: $1,999.00 Amazon B&H Photo Video eBay

Pros: High-quality vendor data returns a 5.15 ideal-subwoofer preference score with 60Hz measured extension. MILAN/AVB networking, a 10-band parametric EQ and a rotatable constant-directivity horn make it a systems-oriented choice for professional deployment.

Cons: At 32kg this is a heavy 15-inch cabinet, and buyers who do not need networked audio may find comparable performance in simpler mainstream models. The 60° x 40° pattern is narrower than several rivals.

Full HK Audio LINEAR 7 115 FA review and specifications →

Amplifier Power	2,000W peak (Class D bi-amped, manufacturer specified)
Bass Extension (-3dB)	60Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	Hybrid birch multiplex/MDF
Configuration	Active 2-way bass-reflex PA speaker
Coverage	60° x 40°, rotatable
Crossover Frequency	1.5kHz FIR (manufacturer specified)
DSP	Yes, networked 10-band PEQ, filters, delay and limiter
Dimensions	28"H x 17.7"W x 17.7"D (710 x 450 x 450 mm)
Drivers	15" woofer, 1" compression driver
Frequency Response	57Hz - 19kHz (±3dB, manufacturer specified); 54Hz - 20kHz (-10dB)
Inputs	XLR/jack combo input, XLR thru and XLR DSP output
Maximum SPL	134dB peak (manufacturer specified)
Network Control	EtherCON input/thru; DSP CONTROL software
Rigging	Four M8 points; DuoTilt 3°/7° pole mount
Weight	70.5 lbs / 32 kg

• Links
  • HK Audio LINEAR 7 115 FA Product Page
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • HK Audio LINEAR 7 115 FA vs RCF KX 45-A
  • HK Audio LINEAR 7 115 FA vs Vue Audiotechnik H-15
  • HK Audio LINEAR 7 115 FA vs Yamaha DZR15

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 KV2 Audio EX15
  • RCF NX 945-A vs RCF KX 45-A
  • RCF NX 945-A vs Vue Audiotechnik H-15