RCF NX 985-A Three-Way Active Powered Speaker for Live Sound

RCF NX 985-A Three-Way Powerhouse for Bands, DJs, and Clubs

The RCF NX 985-A is a large-format, three-way active speaker built to cover big rooms with authority. A 15" high power woofer, dedicated 8" neodymium midrange, and a 1.75" neodymium compression driver with PEEK diaphragm work together to deliver up to 138 dB SPL across a wide 40 Hz – 20000 Hz frequency range. The constant directivity system provides coherent 100° x 60° coverage, so vocals, instruments, and DJ playback reach the back of the room without losing clarity.

Driving the NX 985-A is a 2100 W Class-D amplifier from the NX 9 platform, rated 50% more powerful than previous generations and designed around convection cooling with a solid aluminum heat exchanger. The amplifier section uses a low-distortion input stage, advanced safety limiter, and high-efficiency Switch Mode Power Supply, all developed to maintain the character of the input signal while handling extreme sound pressure levels.

DSP is handled by RCF’s proprietary Bass Motion Control and FiRPHASE processing. BMC maps the woofer’s excursion and limits only over-excursions instead of relying on a simple high-pass filter, helping NX 985-A reproduce the lowest audible frequencies with extended linearity and better sound integrity. FiRPHASE filters are tuned for each model to support transparent sound, phase coherence, and consistent imaging for listeners across the coverage area.

Physically, NX 985-A uses a rugged all-plywood cabinet with ergonomic side handles, M10 rigging points, and a 35 mm pole insert for stand or sub mounting. PowerCON TRUE1 TOP IN/OUT connectors with True Outdoor Protection provide IP-rated, UV-resistant power connections for heavy-duty applications. Whether it is deployed as a stand-alone main, paired with another NX 985-A, or combined with the RCF SUB 8008-AS, this cabinet is designed to deliver high performance and reliability for bands, DJs, clubs, and rental companies.

Real-World Applications and Sound Roles

• Primary mains for big rooms: Cover demanding clubs, gyms, and live stages where a single three-way top per side needs to throw cleanly and loudly.
• Four-way systems with subs: Pair NX 985-A with SUB 8008-AS to create a high-power system with extended low end and detailed mid-high coverage.
• Club and theater installs: Use the M10 hardware to fly NX 985-A in clusters for permanent installations that need both output and intelligibility.
• Rental and production inventories: Deploy as a versatile workhorse that can handle live bands one night and a high-energy DJ event the next.
• Chicago DJ and event rigs: Build large-format pole-mounted or flown systems that keep dance floors energized while maintaining vocal clarity for announcements.

Where the RCF NX 985-A Excels in Demanding PA Systems

• High-Impact Three-Way Design: Dedicated 15" woofer, 8" mid, and 1.75" compression driver share the workload, improving clarity and headroom compared to typical two-way boxes.
• Serious Output for Big Rooms: Up to 138 dB SPL lets NX 985-A handle full bands, powerful DJs, and club-level playback without feeling strained.
• Wide, Controlled Coverage: A 100° x 60° pattern focuses energy on the audience area, simplifying placement in wide stages, ballrooms, and club floors.
• Extended Low-Frequency Reach: Linear 40 Hz – 20000 Hz response, enhanced by Bass Motion Control, supports full-range performance as a stand-alone main.
• Refined Mid and High Detail: The 1.75" neodymium driver with PEEK dome and 8" midrange on a waveguide are designed for extended clarity and vocal presence.
• NX 9 Amplifier Platform: 2100 W Class-D amplification, thermal and RMS protections, and convection cooling deliver consistent performance across long shows.
• Road-Ready Construction: All-plywood cabinet, steel grille, and ergonomic side handles are built for intensive touring and rental use.
• Rigging and Coupling Options: M10 rigging points and pole mount allow single-box, coupled, or flown configurations tailored to each venue.
• Outdoor-Ready Power: PowerCON TRUE1 TOP IN/OUT connectors provide IP-rated, UV-resistant power connections for harsh or outdoor environments.
• Flexible for Chicago DJs and rentals: One cabinet can serve as a festival main, club top, or large-event DJ speaker, simplifying inventories and truck space.

Control Modes for the RCF NX 985-A

NX 985-A offers a focused set of rear-panel controls so you can adapt the cabinet quickly to different system roles while the internal DSP manages crossover, phase, and protection.

• Linear: Neutral response for front-of-house, theater, and situations where tonal shaping comes primarily from the console or system processor.
• 2 Speakers: Optimized voicing when two NX 985-A cabinets are used together, helping maintain balance and clarity when coupling multiple boxes.
• High Pass: Engages a high-pass filter for operation with subwoofers such as SUB 8008-AS, offloading deep bass from the top cabinet and increasing overall system headroom.
• Volume: Main level control for matching NX 985-A to upstream equipment while Soft Limiter, thermal, excursion, and RMS protections guard the system at high drive levels.

These presets sit on top of Bass Motion Control and FiRPHASE processing, so the speaker maintains consistent voicing and imaging as you move between roles from stand-alone main to part of a larger, multi-cabinet rig.

Three-Way Architecture for Clarity, Punch, and Headroom

NX 985-A is built around a true three-way layout. A 15" high power woofer with 3.0" voice coil handles low frequencies, an 8" neodymium midrange with 2.5" voice coil covers the critical vocal band, and a 1.75" neodymium compression driver manages the top end. Crossover frequencies at 320 Hz between bass and mid, and 1200 Hz between mid and high, keep each transducer operating in its most efficient range.

By assigning lows, mids, and highs to dedicated drivers, the NX 985-A can deliver strong low-frequency impact while preserving intelligible vocals and detailed high frequencies, even at high output levels. This is especially useful in club and live environments where complex mixes and high SPL are the norm.

Advanced Transducers with Neodymium Motors and PEEK Diaphragm

All of the NX 985-A transducers are designed by RCF engineers for maximum reliability and performance. The compression driver uses a neodymium magnet for reduced weight and improved current handling, combined with a PEEK dome and Polyamide/Kapton voice coil engineered to tolerate extreme power levels while keeping distortion low.

The midrange section employs a high-power 8" cone on a constant directivity waveguide, adding detail and vocal clarity across the coverage area. The 15" woofer uses an advanced transducer design for stability at high currents, reduced distortion, fast transient response, and improved heat management, supporting the cabinet’s ability to reach 138 dB SPL cleanly.

Bass Motion Control and FiRPHASE for Extended, Accurate Response

Instead of relying solely on a traditional high-pass filter to protect the woofer, NX 985-A incorporates Bass Motion Control. BMC maps the dynamic behavior of the woofer and generates a custom algorithm that limits only over-excursions, allowing the speaker to reproduce very low frequencies while maintaining stability and linearity.

FiRPHASE processing is used to manage phase and timing, helping the system deliver transparent sound and precise imaging. Together, these technologies give NX 985-A extended bass, controlled motion, and coherent response across its 40 Hz – 20000 Hz operating range, making it easier to achieve consistent results across different rooms and setups.

NX 9 Amplifier Platform, Rigging Options, and Outdoor-Ready Power

The NX 9 amplifier platform provides 2100 W peak of Class-D power split across low, mid, and high sections: 1400 W for lows, 500 W for mids, and 200 W for highs. Convection cooling via a rear aluminum heat exchanger removes the need for a fan, while built-in protections (thermal, excursion, RMS, and Soft Limiter) help safeguard both transducers and electronics.

The cabinet is constructed from plywood with a steel grille, and supports multiple rigging configurations through M10 hardware on the top, sides, bottom, and rear. Ergonomic side handles simplify lifting and positioning, and a 35 mm pole insert supports stand or sub mounting. PowerCON TRUE1 TOP IN/OUT connectors with True Outdoor Protection bring IP-rated, UV-resistant power connectivity suitable for heavy-duty and harsh environment applications in modern entertainment setups.

How to Deploy the RCF NX 985-A in the Field

As a main system, place one NX 985-A per side on sturdy stands or on subwoofer poles using the 35 mm insert. Aim the 100° horizontal coverage so it spans the audience width, and tilt the cabinets to keep the 60° vertical pattern focused on listeners instead of reflective ceilings. For very wide rooms, consider coupling two NX 985-A cabinets per side and using the 2 Speakers preset to help maintain consistent response.

For systems with subwoofers such as SUB 8008-AS, engage the High Pass mode on the tops to offload deep bass and increase headroom. Use the balanced combo XLR/jack inputs and XLR outputs to route signal through the chain, keeping cable runs tight and organized. In club or theater installs, apply the integrated M10 rigging points with appropriate hardware to fly NX 985-A safely from truss or structural mounting points.

When used for DJ or band events, start with the Linear setting when system EQ is handled at the console, or experiment with the 2 Speakers setting in coupled arrangements to refine tonal balance. Keep the Volume control set so the amplifier’s limiter only activates on peaks, letting Bass Motion Control and FiRPHASE handle driver protection and phase alignment behind the scenes.

Deployed on poles, in coupled stacks, or flown over subs, the RCF NX 985-A is built to move serious air while keeping vocals and instruments intelligible for demanding Chicago shows.

Why Choose the RCF NX 985-A from AVMaxx

AVMaxx works directly with RCF NX 9 Series systems in real venues, so recommendations for the NX 985-A come from field use with bands, DJs, clubs, and rental inventories. We understand where a three-way cabinet like this fits versus smaller NX tops and how to pair it with subs, processing, and rigging to match the size of your rooms.

When you source NX 985-A through AVMaxx, you get more than a spec sheet. You get help choosing between single-box, coupled, or flown deployments, guidance on when to engage High Pass or 2 Speakers modes, and practical advice on combining NX 985-A with subwoofers for festival stages, big ballrooms, and high-output club rigs.

Whether you are building a Chicago mobile rig, upgrading a permanent club installation, or expanding a rental inventory, AVMaxx focuses on system-level results so your NX 985-A investment translates into consistent shows and strong ROI.

AVMaxx is your partner for RCF NX systems—real-world tuning advice, responsive support, and builds that keep Chicago DJs and live crews sounding clean, powerful, and confident.