Arena-Grade Dual 21" Bass with Networked Control — RCF SUB 9007-AS
The SUB 9007-AS is a high-power, active subwoofer built for modern touring and large-room installs. Two hyper-vented 21" neodymium woofers with 4.0" inside/outside voice coils pair with a 7200 W peak / 3600 W RMS amplifier to deliver authoritative low-frequency energy with headroom. A DSP-controlled input section and onboard RDNet provide preset selection, delay, polarity, EQ, and crossover management from the back panel or the network.
Engineered to stack cleanly with RCF D-Line arrays (HDL 50-A 4K, HDL 20-A, HDL 10-A), the cabinet's tour-grade birch build, powder-coated grille with foam backing, and eight aluminum side handles keep turnover fast and reliable for crews. With variable low-pass up to 400 Hz and selectable 25/35 Hz low-cuts, it integrates tightly into live music, club, and mobile DJ systems needing massive output with precise control.
Real-World Applications and Sound Roles
- Large-format DJ and dance systems demanding chest-hit impact with network monitoring.
- Live band PA where dual-21 punch and variable LPF lock to flown HDL arrays.
- Corporate and arena deployments needing repeatable presets and delay alignment.
- Cardioid sub arrays to keep stages and DJ booths clean of rear spill.
Where the RCF SUB 9007-AS Excels
- Extreme Output Headroom: Up to 141 dB SPL from dual hyper-vented 21" neodymium woofers for festival-scale coverage.
- Networked Precision: RDNet onboard for group control, monitoring, EQ, polarity, timing, and presets.
- Broad Crossover Flexibility: Variable low-pass from 50–400 Hz suits different tops and venue voicings.
- Clean LF Tuning: Selectable low-cuts at 25/35 Hz tighten infra while protecting excursion.
- Cardioid Capable: Dedicated presets streamline forward/rear-facing arrays to reduce onstage rumble.
- Tour-Grade Build: Baltic birch cab, powder-coated steel grille, foam backing, and 8 side handles survive daily transport.
- Power Infrastructure Ready: High-current amp with Powercon IN/OUT supports professional distro practices.
- HDL Ecosystem Fit: Integrated mechanics align with HDL 50-A 4K / 20-A / 10-A for fast stacked systems.
- Built for Chicago DJs: Speeds ballroom flips and club takeovers with presets and delay you can recall in seconds.
Control Modes for RCF SUB 9007-AS
- RDNet (Onboard): Network monitoring and full DSP control—EQ, polarity, amplitude, timing, presets, and RMS/clip behavior—from the RDNet software.
- Rear Panel Encoder & Display: Push to select function, rotate to set values for Gain, Delay, and Preset.
- Presets: Infra, Extended Low, Cardioid (front/rear roles), and Low-Pass Excluded modes for advanced routing up to 400 Hz.
- Filters: Low-cut choices at 25 Hz or 35 Hz; variable low-pass 50–400 Hz to match tops.
- Phase / Polarity: Phase switch for fast summation around crossover and cardioid alignment.
- Delay: Output delay adjustable in meter-based increments for acoustic time alignment.
- I/O & Sensitivity: Balanced XLR input/through, RDNet etherCON I/O, input sensitivity at +4 dBu, Powercon mains IN/OUT.
- Protections & Limiting: Thermal and RMS protections with fast limiter behavior for consistent shows.
Turnkey Power, Networked Control, Road Reliability
Dual 21" Engine with Serious Headroom
Two hyper-vented neodymium 21" woofers with 4.0" inside/outside coils deliver deep LF with low power compression. The DSP-driven 7200 W peak / 3600 W RMS module keeps transients intact while maintaining control at high output.
RDNet Workflow for Fast System Gains
Onboard RDNet centralizes preset recall, EQ, polarity, timing, and device health so engineers can shape low-end behavior across grouped subs and tops. It's a practical edge for rotating rooms, corporate timelines, and DJ changeovers.
Flexible Crossover Strategy
Selectable 25/35 Hz low-cuts protect excursion below the program's useful range. Variable 50–400 Hz low-pass lets you run traditional 80–100 Hz handoffs or push higher when integrating with compact tops or specialty arrays.
Cabinet & Mechanics That Move
Tour-grade birch, powder-coated grille with foam backing, and eight side handles support daily transport. Integrated mechanics align with HDL 50-A 4K / 20-A / 10-A for clean stacked rigs that look as pro as they sound.
How to Deploy RCF SUB 9007-AS in the Field
Place for coverage first, then use the onboard tools and RDNet to lock alignment and voicing.
- Stack with HDL Arrays: Build horizontal stacks under HDL 50-A 4K or vertical stacks for HDL 30-A/20-A; mirror presets across groups for consistent voicing.
- Duals & Quads: Center-cluster for uniform LF; split L/R to widen image for clubs and ballrooms; match timing to mains.
- Cardioid Arrays: Use the dedicated front / rear presets to deploy forward-facing units with a rear-facing unit for stage-side cleanup.
- Filter Strategy: Choose 25 Hz or 35 Hz low-cut based on program; set low-pass anywhere 50–400 Hz to suit the top boxes.
- Delay Alignment: Apply output delay (meters) until sub/top arrivals sum at crossover; confirm polarity for maximum coupling.
- Power & Network: Connect mains via Powercon IN/OUT; link RDNet etherCON to group devices and manage presets from FOH.
Lock the dancefloor with tight LF imaging—preset, delay, and polarity yield fast, repeatable results night after night.
Why Choose the RCF SUB 9007-AS from AVMaxx
Manufacturer-accurate guidance: We spec exactly what this sub delivers—dual 21" neodymium drivers, variable 50–400 Hz LPF, selectable 25/35 Hz low-cuts, RDNet control, cardioid presets, and Powercon IN/OUT—so your first deployment lands on target.
Chicago & DJ-centric builds: Our recommendations prioritize fast turnovers, predictable stacks with HDL arrays, and mixes that hit hard without mud across weddings, clubs, and corporate rooms.
Support that travels: From preset choices to delay values and grouping in RDNet, we help you translate spec into field-proof results.
AVMaxx is your partner for RCF solutions—field-aware recommendations, dependable support, and builds that help Chicago DJs and event pros perform with confidence.
Frequently Asked Questions — RCF SUB 9007-AS
How powerful is the SUB 9007-AS in real shows?
It couples two hyper-vented 21" neodymium woofers to a 7200 W peak / 3600 W RMS module and is rated up to 141 dB, providing arena-level headroom.
Can I control multiple subs from a laptop?
Yes. RDNet onboard allows grouping, monitoring, EQ, polarity, delay, and preset management for multiple devices from a centralized interface.
What crossover options does it offer?
Select low-cuts at 25 or 35 Hz and set the low-pass anywhere from 50 to 400 Hz to match tops and venue needs.
Does it support cardioid sub arrays?
Yes. Dedicated cardioid presets define forward and rear roles for quick deployment that reduces rear-spill on stage and at DJ booths.
Is it compatible with HDL line arrays?
Integrated mechanics and cabinet geometry align with HDL 50-A 4K, HDL 20-A, and HDL 10-A for clean stacked configurations.
Tell us your room, tops, and target crossover—we'll provide preset, delay, and cardioid guidance tailored to your Chicago shows.
