RCF KX 45-A vs HK Audio LINEAR 7 115 FA

Short answer: the LINEAR 7 115 FA for most buyers, the KX 45-A only if you need RCF’s flagship output ceiling and RDNet control. These rank #3 and #4 out of 29 15-inch powered PA speakers, priced at $4620 and $1999.

The KX 45-A is RCF’s flagship 15-inch point source. A 3200W amplifier pairs with a 3-inch titanium-dome compression driver, RDNet remote control and a 137dB claimed peak, the highest maximum-output claim in this ranking, with rotatable 100° x 70° coverage suiting both main and monitor use. Its own cons note the local measurement is truncated and can’t produce a preference score, and at 28.4kg it’s one of the heaviest boxes here, with pricing and retail availability not yet fully established.

The LINEAR 7 115 FA is lighter and comes with a confirmed measured result. High-quality vendor data returns a 5.15 ideal-subwoofer preference score with 60Hz measured extension, and MILAN/AVB networking, a 10-band parametric EQ and a rotatable constant-directivity horn make it a systems-oriented choice for professional deployment. Its own cons note at 32kg it’s still a heavy 15-inch cabinet, and buyers who don’t need networked audio may find comparable performance in simpler mainstream models, while its 60° x 40° pattern is narrower than several rivals including the KX 45-A’s 100° x 70°.

Buy the LINEAR 7 115 FA for a confirmed measured preference score and MILAN networking at a lower price.

Buy the KX 45-A if you specifically need RCF’s higher output ceiling, RDNet control and wider rotatable coverage for main or monitor duty.

Specifications Side By Side

Related Speaker Comparisons

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

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

RCF KX 45-A: $4,620.00 B&H Photo Video Guitar Center eBay

Pros: RCF’s flagship 15-inch point source pairs a 3200W amplifier with a 3-inch titanium-dome compression driver, RDNet remote control and a 137dB claimed peak, the highest maximum-output claim in this ranking. Rotatable 100° x 70° coverage suits both main and monitor use.

Cons: The local measurement is truncated and cannot produce a preference score. At 28.4kg it is one of the heaviest boxes here, and pricing/retail availability are not yet established.

Full RCF KX 45-A review and specifications →

Amplifier Power	3200W peak (2000W LF + 1200W HF)
Bluetooth	No
Cabinet Material	Baltic birch plywood
Configuration	Active 2-way bass-reflex point-source PA speaker
Coverage	100° x 70°, rotatable
Crossover Frequency	750Hz
DSP	Yes, FiRPHASE, Bass Motion Control, presets and RDNet
Dimensions	27.8"H x 16.5"W x 16.9"D (705 x 419.6 x 430 mm)
Drivers	15" neodymium woofer, 1.4" exit/3" dome compression driver
Frequency Response	50Hz - 20kHz (manufacturer specified)
Inputs	XLR audio input/link and EtherCON RDNet
Maximum SPL	137dB peak (manufacturer specified)
Network Control	RDNet
Rigging	Quick-lock rigging; 6 x M10 inserts; 35mm pole mount
Weight	62.6 lbs / 28.4 kg

• Links
  • RCF KX 45-A Product Information
• Reviews, Comparisons and Sound Samples
  • Spinorama Measurements
• Head-to-Head Comparisons
  • RCF KX 45-A vs Vue Audiotechnik H-15
  • RCF KX 45-A vs RCF ART 945-A
  • RCF KX 45-A vs RCF NX 945-A
  • RCF KX 45-A vs KV2 Audio EX15

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 NX 945-A
  • HK Audio LINEAR 7 115 FA vs Vue Audiotechnik H-15
  • HK Audio LINEAR 7 115 FA vs Yamaha DZR15