Used RCF HDL 50-A / RCF HDL 50-A 4K
Used RCF HDL 50-A and HDL 50-A 4K are active three-way line array modules built for large-scale touring and events, indoors and outdoors, delivering up to 4400W or 8000W of power alongside 32-bit DSP processing and RDNet remote monitoring. Both second-hand variants suit professional large-event applications where high SPL and lightweight handling matter. Scroll down to browse current used listings available now.
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RCF HDL 50-A / RCF HDL 50-A 4K specifications
| Brand | RCF |
| Segment | Audio |
About the RCF HDL 50-A / RCF HDL 50-A 4K
The RCF HDL 50-A is an active three-way line array module rated at 4400W with a maximum SPL of 140 dB. It houses eight high-power neodymium transducers, including two 12-inch woofers, four symmetrical 6.5-inch midranges and two 2-inch drivers, powered by a 2200W RMS digital amplifier. Its lightweight plywood and polypropylene enclosure simplifies handling and flying. The HDL 50-A 4K raises output to 8000W via four onboard Class-D amplifier channels, achieves 143 dB max SPL, and features two 12-inch neodymium woofers plus two 3-inch titanium dome compression drivers. Both variants include 48 kHz, 32-bit DSP processing and RDNet networked management for large indoor and outdoor events.
RCF HDL 50-A / RCF HDL 50-A 4K — buyer FAQs
What is the RCF HDL 50-A and how does it differ from the HDL 50-A 4K?
The RCF HDL 50-A is an active three-way line array module rated at 4400W with a maximum SPL of 140 dB, housing two 12-inch woofers, four symmetrical 6.5-inch midranges and two 2-inch drivers driven by a 2200W RMS digital amplifier. The HDL 50-A 4K raises total power to 8000W via four onboard Class-D amplifier channels and reaches 143 dB max SPL, with two 12-inch neodymium woofers and two 3-inch titanium dome compression drivers.
What events and venues is the HDL 50-A suited to?
Both the HDL 50-A and HDL 50-A 4K are designed for large-scale events indoors and outdoors, making them appropriate for touring productions and large-format professional musical applications where high sound pressure levels and lightweight rigging are priorities. The enclosure combines plywood and polypropylene to keep weight low for easy handling and flying.
What DSP and networking features are built into these line array modules?
Both variants include 48 kHz, 32-bit DSP processing and RDNet networked management and monitoring on board. RDNet allows remote control and monitoring of the system, which is useful for large-scale deployments where multiple modules are flown together across a line array configuration.
Who makes the RCF HDL 50-A and where does it fit in the RCF range?
RCF is an Italian audio manufacturer founded in 1949 in Reggio Emilia, designing its own transducers and loudspeaker systems for live sound, touring and installed applications across more than a hundred countries. The HDL 50-A sits in RCF's active line array range aimed at large events, and the HDL 53-AS subwoofer is the stated flyable bass complement intended to pair with the HDL 50-A array system.
What should I check when buying a used RCF HDL 50-A or HDL 50-A 4K?
Confirm whether the unit is the standard HDL 50-A (4400W, 140 dB) or the HDL 50-A 4K (8000W, 143 dB), as the two have different amplifier configurations and driver complements. Check the condition of the neodymium transducers, enclosure and rigging hardware, since these are flying systems. Used listings on this page include condition details and most have a Make an Offer option. Every listing carries a 21-day warranty covering major functional faults; full details are in the buying guide at 10kused.com/used-av-equipment-guide/.
