Short answer: the Stinger 15-A-G3 for measured bass reach and current availability, the ART 745-A MK4 only if you find one at a discount. These rank #20 and #21 of 29 15-inch powered PA speakers, priced $913 apart.
The Stinger measures deeper than any RCF-priced alternative in this tier. Its vendor data shows a 3.58 ideal-subwoofer preference score with 39Hz measured extension, the deepest bass reach of any RCF-priced alternative at this price point, in an affordable 15-inch active box. Its cons acknowledge the preference score itself is modest and its 90° x 50° horn is narrower than several higher-scoring competitors, and at 26.8kg it is one of the heavier budget-tier boxes here.
The ART 745-A MK4 is a discontinued flagship with real vocal headroom. It carries the largest ART7 compression driver, a 3-inch diaphragm, with a 133dB claimed peak in a light 18.8kg enclosure, wider coverage at 100° x 60°, and RCF’s FiRPHASE, EQ, limiting and protection built in. But its own cons state plainly that it is discontinued and eclipsed by the better-supported ART 745-A MK5, and its low-quality vendor data is truncated and does not yield a preference score.
Buy the Stinger 15-A-G3 if you want a currently sold, deep-measuring 15-inch box at an accessible price.
Buy the ART 745-A MK4 only if you can find remaining stock at a discount and want its larger compression driver and lighter cabinet, knowing it has been superseded.
Specifications Side By Side
| LD Systems Stinger 15-A-G3 | RCF ART 745-A MK4 | |
|---|---|---|
| Price | $786.00 | $1,699.00 |
| Ranked | #20 of 29 in 15-Inch Two-Way Powered PA Speakers | #21 of 29 in 15-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15" woofer, 1" compression driver | 15" woofer, 1.4" exit/3" diaphragm compression driver |
| Frequency Response | 50Hz - 20kHz (manufacturer specified) | 45Hz - 20kHz (manufacturer specified) |
| Dimensions | 29"H x 18.9"W x 17.9"D (737 x 480 x 455 mm) | 27.9"H x 17.4"W x 15.2"D (708 x 442 x 387 mm) |
| Inputs | 2 x XLR/TRS line/mic inputs; XLR mono mix output | XLR/jack combo input; XLR output |
| Amplifier Power | 1000W peak / 500W RMS | 1,400W peak / 700W RMS (1,000W LF + 400W HF peak, manufacturer specified) |
| Cabinet Material | 15mm plywood with polyurea coating | Polypropylene composite |
| Rigging | M10 suspension points; 36mm Dual-Tilt pole mount | M10 fly points; pole mount |
| Coverage | 90° x 50° | 100° x 60° |
| Maximum SPL | 133dB peak (manufacturer specified) | 133dB peak (manufacturer specified) |
| Bass Extension (-3dB) | 41.2Hz (measured, vendor Spinorama data) | 65Hz (measured, vendor Spinorama data) |
| DSP | Yes | Yes, FiRPHASE, EQ, limiting and protection |
| Bluetooth | No | No |
| Weight | 59.1 lbs / 26.8 kg | 41.4 lbs / 18.8 kg |
| Crossover Frequency | - | 650Hz (manufacturer specified) |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- FBT J15A vs Martin Audio XP15
- FBT J15A vs RCF ART 735-A MK4
- RCF ART 745-A MK5 vs Vue Audiotechnik A-15
- RCF ART 745-A MK4 vs FBT J15A
- RCF ART 745-A MK5 vs LD Systems Stinger 15-A-G3
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
LD Systems Stinger 15-A-G3: $786.00 Amazon B&H Photo Video eBay
Pros: Medium-quality vendor data shows a 3.58 ideal-subwoofer preference score with 39Hz measured extension, the deepest bass reach of any RCF-priced alternative in this tier, at an affordable price for a 15-inch active box.
Cons: The measured preference score is modest, and its 90° x 50° horn is narrower than several higher-scoring competitors. At 26.8kg it is one of the heavier budget-tier boxes here.
Full LD Systems Stinger 15-A-G3 review and specifications →
| Amplifier Power | 1000W peak / 500W RMS |
|---|---|
| Bass Extension (-3dB) | 41.2Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | 15mm plywood with polyurea coating |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 90° x 50° |
| DSP | Yes |
| Dimensions | 29"H x 18.9"W x 17.9"D (737 x 480 x 455 mm) |
| Drivers | 15" woofer, 1" compression driver |
| Frequency Response | 50Hz - 20kHz (manufacturer specified) |
| Inputs | 2 x XLR/TRS line/mic inputs; XLR mono mix output |
| Maximum SPL | 133dB peak (manufacturer specified) |
| Rigging | M10 suspension points; 36mm Dual-Tilt pole mount |
| Weight | 59.1 lbs / 26.8 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
RCF ART 745-A MK4: $1,699.00 Amazon B&H Photo Video Guitar Center eBay
Pros: 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.
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 ART 745-A MK5.
Full RCF ART 745-A MK4 review and specifications →
| Amplifier Power | 1,400W peak / 700W RMS (1,000W LF + 400W HF peak, manufacturer specified) |
|---|---|
| Bass Extension (-3dB) | 65Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Polypropylene composite |
| 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) |
| Inputs | XLR/jack combo input; XLR output |
| Maximum SPL | 133dB peak (manufacturer specified) |
| Rigging | M10 fly points; pole mount |
| Weight | 41.4 lbs / 18.8 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons