The RCF ART 745-A MK4 is rated 3.4/5 for sound quality, #44 of 76 15-Inch PA Speakers. See all PA & Live Sound rankings for every top pick.

RCF ART 745-A MK4 · Editor's rating 3.4/5, ranked #44 of 76 15-Inch PA Speakers

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Brand: RCF

#44 RCF ART 745-A MK4: $1,699.00 Discontinued Amazon $1,699.00 eBay

Newer model: the RCF ART 745-A MK5, ranked higher, rated 3.5/5, released Jan 2024. See every RCF ART 7 generation.

Pros: A discontinued 15 inch powered PA speaker with a large compression driver for strong vocal headroom in a fairly light cabinet. The largest ART7 compression driver, 133dB claimed peak and a light 18.8kg enclosure give this discontinued flagship useful vocal headroom for a 15-inch box. Measured bass extension of 65Hz (-3dB).

Cons: The low-quality vendor data is truncated and does not yield a preference score. It is discontinued and is eclipsed by the better-supported RCF ART 745-A MK5.

Released	Aug 2017 (9 years ago)
AES Input	No
Amplifier Power	1,400W peak / 700W RMS (1,000W LF + 400W HF peak, manufacturer specified)
Aux Input	No
Bass Extension (-3dB)	65Hz (measured, vendor Spinorama data)
Bluetooth	No
Cabinet Material	Polypropylene composite
Coaxial Input	No
Configuration	Active 2-way bass-reflex PA speaker
Coverage	100° x 60°
Crossover Frequency	650Hz (manufacturer specified)
DSP	Yes, FiRPHASE, EQ, limiting and protection
Dimensions	27.9”H x 17.4”W x 15.2”D (708 x 442 x 387 mm)
Drivers	15” woofer, 1.4” exit/3” diaphragm compression driver
Frequency Response	45Hz - 20kHz (manufacturer specified)
Guitar Input	No
HDMI Input	No
Inputs	XLR/jack combo input; XLR output
Maximum SPL	133dB peak (manufacturer specified)
Microphone Input	No
Optical Input	No
Passive	No
RCA Input	No
Rigging	M10 fly points; pole mount
TRS Input	Yes
USB Input	No
Weight	41.4 lbs (18.8 kg)
XLR Input	Yes

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Links
- RCF ART 745-A MK4 Product Information
Reviews, Comparisons and Sound Samples
- Spinorama Measurements

Frequency Response

How the RCF ART 745-A MK4 measures across the audible range. A flatter listening window (the sound arriving straight at you) is more neutral: peaks sound forward or harsh, dips sound recessed. The estimated in-room response adds what a typical room does, and there a gentle, even tilt down toward the treble is ideal. Both curves are shifted so their 300 Hz to 3 kHz average sits at 0 dB.

Listening windowEstimated in-room response

Measurement data: spinorama.org, measured by the manufacturer.

EQ for a Neutral Response

Flattens the measured listening window from the RCF ART 745-A MK4's own bass extension up to 16 kHz. Set a preamp of -1.5 dB, then add these filters to any parametric equalizer in the signal path: the speaker's app or DSP if it has parametric EQ, a miniDSP, Equalizer APO or Wavelet. Boosts are kept to 3 dB, and EQ cannot fix how evenly the speaker spreads sound off-axis, which is why some speakers gain more than others. Calculated by Speaker Ranking from the spinorama measurements above.

Filter	Frequency	Gain	Q
High shelf	8,000 Hz	-0.8 dB	0.70
Peak	11,081 Hz	-2.9 dB	1.94
Peak	15,899 Hz	+2.6 dB	4.00

More RCF speakers →

RCF ART 745-A MK4 Review: Rated 3.4/5

#44 RCF ART 745-A MK4: $1,699.00 Discontinued Amazon $1,699.00 eBay

Frequency Response

EQ for a Neutral Response

Head-to-Head Comparisons