Flyable, Focused Low End for HDL 6-A — RCF HDL 12-AS
The HDL 12-AS is a compact, active subwoofer purpose-built to extend HDL 6-A systems with fast, controlled bass. A 1 × 12" woofer (3.0" v.c.) driven by a 1400 W peak / 700 W RMS digital amplifier delivers up to 131 dB across a tight 40–120 Hz working range. The built-in digital stereo crossover (DSP) provides switchable 80/110 Hz low-pass points plus a 40 Hz high-pass for tops, with polarity reverse and selectable -2 dBu / +4 dBu input sensitivity to integrate cleanly with your mixer or processor.
Tour-ready details seal the deal: integrated array fittings for quick, repeatable fly setups with HDL 6-A, an M20 pole mount for satellite rigs, balanced/unbalanced XLR I/O for straightforward chaining, and Powercon IN/OUT with convection cooling. A Baltic birch plywood cabinet and steel grille with protective foam back the performance, while Thermal/RMS protections and a Soft Limiter keep shows consistent from soundcheck to encore.
Real-World Applications and Sound Roles
- Flown with HDL 6-A to add musical, directional low end to compact line-array clusters.
- Ground-stacked pairs for corporate ballrooms, weddings, and club takeovers.
- Pole-mounted mono sub with satellites for streamlined mobile DJ rigs.
- Mixed rigs where polarity reverse and switchable crossover points simplify alignment.
Where the RCF HDL 12-AS Excels
- Fly-First Design: Integrated array fittings pair directly with HDL 6-A for predictable flown clusters.
- Big SPL, Small Footprint: Up to 131 dB from a compact box—ideal when truck pack and trim height are tight.
- Focused Bass Band: 40–120 Hz keeps energy where kick and bass hit without masking vocal clarity.
- Switchable Crossovers: 80/110 Hz low-pass points and a 40 Hz high-pass produce clean transitions to tops.
- Quick Phase Tools: Polarity reverse mitigates cancellations in tricky rooms or mixed stacks.
- Roadworthy Build: Baltic birch cabinet, steel grille with foam backing, and 2 side handles.
- Professional I/O: Balanced/unbalanced XLR in/out with -2 dBu / +4 dBu sensitivity selection.
- Power Made Easy: Powercon IN/OUT and convection cooling for reliable shows.
- Chicago DJ Ready: 25 kg (55.12 lbs) and 379 × 470 × 508 mm for fast ballroom turnarounds.
- Protected Performance: Thermal/RMS safeguards with Soft Limiter consistency.
Control Modes for RCF HDL 12-AS
- Volume: Match sub output to flown or ground-stacked arrays.
- EQ: Onboard tonal shaping for room and program.
- Phase (Polarity Reverse): Flip polarity to restore LF summation when cancellations occur.
- Crossover: Built-in DSP stereo crossover with Low-Pass 80 Hz / 110 Hz and a 40 Hz High-Pass for tops/satellites.
- Input Sensitivity: Select -2 dBu or +4 dBu to optimize headroom from your mixer/processor.
- Signal Path: Balanced/unbalanced XLR inputs with XLR thru/outs for clean daisies.
HDL 12-AS Engineering Highlights for Touring & Install
Acoustical Performance
Bandwidth & Level: 40–120 Hz operating range and up to 131 dB max SPL deliver tight, musical low-end beneath HDL 6-A arrays.
Transducer + Amplifier
Driver & Power: 1 × 12" woofer (3.0" v.c.) energized by a 1400 W peak / 700 W RMS digital amplifier platform for reliable headroom.
Signal Management
DSP & Control: Built-in stereo crossover (80/110 Hz low-pass, 40 Hz high-pass), Volume, EQ, and polarity reverse for fast system tuning.
Connectivity
I/O & Sensitivity: Balanced/unbalanced XLR in/out with selectable -2 dBu / +4 dBu input sensitivity to match sources.
Rigging & Mechanics
Deployment: Companion fly hardware for HDL 6-A, 1 × M20 pole mount, and integrated fittings for repeatable setups.
Power & Protection
Mains: Powercon IN/OUT with convection cooling; Thermal and RMS protections plus a Soft Limiter.
Build & Finish
Enclosure: Baltic birch plywood with steel grille and protective foam; 2 side handles; finishes in Black or White.
Dimensions & Shipping
Cabinet: 379 × 470 × 508 mm (14.92 × 18.5 × 20 in), 25 kg (55.12 lbs). Carton: 435 × 560 × 520 mm, 28 kg (61.73 lbs).
How to Deploy RCF HDL 12-AS in the Field
Choose placement that supports coverage and stage cleanliness, then use the onboard tools to lock integration with your tops.
- Flown with HDL 6-A: Use the integrated array fittings and approved hardware under qualified rigger supervision for compact line-array clusters.
- Ground-Stacked Pairs: Center-cluster for uniform LF or split L/R to widen the image in clubs and ballrooms.
- Pole-Mount with Satellites: Use the M20 socket for streamlined mobile rigs; set the sub’s Xover and apply the tops’ high-pass for a clean handoff.
- Set Crossovers: Select 80 Hz or 110 Hz low-pass on the sub; engage the built-in 40 Hz high-pass to the tops/satellites when required.
- Polarity & Summation: Use the polarity reverse control to counter cancellations and maximize LF coupling at the crossover region.
- Power & Daisy-Chain: Feed mains via Powercon IN/OUT; respect practical limits of up to 6 units @ 230 V or 3 units @ 115 V on a single chain and balance loads on three-phase systems.
- Signal & Gain Staging: Run balanced XLR, choose -2 dBu / +4 dBu sensitivity to match your source, then trim Volume and EQ for program and room.
Fast turnarounds, clean handoffs, predictable results—built for Chicago DJs, clubs, and mobile crews.
Why Choose the RCF HDL 12-AS from AVMaxx
Purpose-matched guidance: We position HDL 12-AS as the designated LF partner to HDL 6-A—flyable, compact, and voiced for the sub band with onboard DSP crossover, polarity, and pro I/O.
Spec-accurate recommendations: Our setup notes track the hardware—80/110 Hz low-pass, 40 Hz high-pass to tops, -2 dBu / +4 dBu sensitivity, Powercon IN/OUT—so your first show feels dialed.
Chicago & DJ focus: We optimize for quick load-ins, clean daisy-chains, and mixes that hit without mud across ballrooms, lounges, and clubs.
AVMaxx is your partner for RCF systems—field-aware builds, straight answers, and support that keeps your events moving.
Frequently Asked Questions — RCF HDL 12-AS
Can HDL 12-AS fly directly with HDL 6-A?
Yes. It is the designated companion subwoofer for HDL 6-A and includes integrated mechanics and array fittings for flown clusters.
What crossover options are onboard?
Switchable low-pass at 80 Hz or 110 Hz plus a 40 Hz high-pass for tops/satellites, all via the built-in DSP stereo crossover.
Is it suitable for mobile DJs and Chicago venues?
Yes. The compact 379 × 470 × 508 mm form factor, 25 kg weight, 131 dB headroom, and M20 pole mount suit fast ballroom and club changeovers.
Which connections and controls does it provide?
Balanced/unbalanced XLR in/out, selectable -2 dBu / +4 dBu input sensitivity, Volume, EQ, Phase (polarity reverse), and Xover.
What’s included in the box?
The provided data confirms dimensions, weight, and shipping details; specific box contents were not listed here. Refer to the product’s official contents when available.
Share your tops, room size, and power plan—AVMaxx will recommend crossover points and deployment that deliver clean, confident low-end for your next event.
