SUB 9000

A New Definition of Bass

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Simplified Tuning. Unrivaled Depth.

High Power
Precision Transducers
Up to 8000 Watts
Power Amplifier
RDNet 
Networked Control
RDTap 
Contactless Configuration
Advanced Crossover Engine
Factory-Tuned Presets
Weather Resistant
Raincover included

Professional Configuration, Simplified

RCF has created a groundbreaking solution for offline/unpowered device configuration. With RDTap, users can inspect and configure devices without needing to power  the device. Sound engineers can design a system within the RDTap App on the move and configure each subwoofer by tapping the RDTap logo, with RCF [patent-pending] contactless technology. As an alternative, RDNet management software enables comprehensive real-time control and monitoring of compatible, network-connected devices.
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SOUND SYSTEM MANAGEMENT AND CONTROL SOFTWARE

RDNet is the RCF management software suite for Sound System Engineers. A robust management network for RCF devices, a line-array design tool, a monitoring platform, and a complete audio analyzer in one package. 
RDNet provides intuitive management of every connected device/object on the network. Network users can control all DSP settings inside any compatible device, including advanced subwoofer configurations, from a single object to groups of objects.
RDNet users can edit and create recallable presets for RCF devices.
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The RDTap app offers contactless communication with the subwoofer. Users can access pre-loaded presets to quickly configure RCF systems or optimize compatible speakers, subwoofers, and line arrays.
 
RDTap enables contactless communication, offering setup management and parameter updates, even when the unit is unpowered. By tapping the RDTap logo at the back panel with a smartphone running RDTap, the app transfers to the unit every aspect of the defined setup, including preset configurations, equalization, mid-low compensation for line arrays, and precise delay and time alignment settings. Or read the status of the speaker.
This is especially convenient when upgrading your subwoofers and giving your old main system a new life, with the assistance of presets, EQs, delays, and management via RDNet.
Unlike other control technologies that operate over long distances, this solution focuses on near-field interactions, where security, precision, and unpowered operations before rigging are key. Data transmission occurs at close range, ensuring that changes are applied only when intended, without interference from further distances or external devices. This makes it a highly efficient and user-friendly way to manage the subwoofer’s settings and performance before setup takes place.
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ADVANCED CROSSOVER ENGINE

FACTORY-TUNED PRESETS FOR PERFECT SUB-TOP PAIRING
Pair your full-range speaker with RCF ACE-enabled SUBs and unlock your system's true potential.
RCF’s proprietary Advanced Crossover Engine (ACE) is engineered to precisely match the time delay and align the phase on a broader range than the usual crossover frequency range between RCF subwoofers and FiRPHASE-enabled full-range speakers. 
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Drive the Rhythm of the Beat

With up to 8000 Watts of power, our Class-D amplifier can manage extreme sound pressure levels with an ultra-fast attack, realistic transient response, and very low thermal loss. 

The stereo input circuit features a low distortion design with an advanced safety limiter, maintaining the true character of the input signal at all levels. RCF amplifiers are designed according to EN62368-1 for maximum safety and present a Switch-Mode Power Supply section that combines high efficiency with minimum weight.
INPUT - FEMALE XLR INPUTS (BALANCED)
The system is equipped with female XLR connectors for balanced audio signals. These inputs are designed to accept professional-grade audio sources, ensuring full compatibility with standard audio equipment.
LINK OUT - MALE XLR SIGNAL OUTPUT
The male XLR output connector provides a loop-through feature, enabling daisy-chaining of additional speakers. The connector is wired in parallel with the input and can also be used to send the audio signal to supplementary devices like other powered speakers or amplifiers.
XOVER OUT - MALE XLR SIGNAL OUTPUT
This balanced male XLR output is specifically engineered to feed RCF satellite speakers. Its configuration can be customized by loading a preset via the RDTap app, ensuring seamless integration between the subwoofer and satellite speakers.
LEVEL SELECTOR
The seven-position level selector provides attenuation from 0 dB (no reduction) to –12 dB in 2 dB increments. This precise adjustment helps optimize system performance by preventing clipping or distortion from overly strong input signals, thereby ensuring seamless integration with other audio components.
SETUP SELECTOR
The setup selector is a four-position rotary switch that governs the operating configuration of the subwoofer. The available settings are:
1 – Low-Pass Filter at 60 Hz
2 – Low-Pass Filter at 80 Hz
RDNET – RDNet-based configuration
RDTAP – App-Based Configuration
SERVICE: USB-C PORT
A dedicated USB-C port is provided for service access. The recommended method for updating the internal firmware is via RDNet.
SUB MUTE BUTTON
When the SUB MUTE button is pressed, the subwoofer enters a muted state. In this mode, the button illuminates red to clearly indicate that the subwoofer is muted. Simultaneously, the DELAY, PHASE, and CARDIOID LEDs on the RDTAP panel also light up red, offering additional visual confirmation—even from a distance.
DATA IN – DATA LINK: RDNET INPUT/OUTPUT SECTION
The RDNet In/Out section is equipped with etherCON connectors for seamless integration within an RDNet network. This connectivity enables comprehensive system control and monitoring via RDNet software, allowing for precise adjustments and real-time feedback in advanced audio management.
FUNCTION AND STATUS INDICATION LED
  • SIGNAL LED
  • CONFIG LED
  • DELAY LED
  • POLARITY LED
  • CARDIOID LED
RDTAP AREA
The RDTAP Area is a specialized feature on the subwoofer panel that facilitates streamlined configuration transfer even when the subwoofer is unpowered. By placing a smartphone running the RDTap app near this designated area, users can wirelessly transmit a pre-designed system configuration directly to the subwoofer or receive the current configuration to the app.

Advanced Precision Transducers

SUB 9000 Series subwoofers incorporate the latest transducer technology from our labs. Employing lightweight aluminum core coils, high-damping cellulose cone material, composite spiders and a 4-layer inside-outside voice coil, the ultra-long excursion moving mass gains high power with fast acceleration. Despite their small and lightweight footprints, SUB 9000 Series subwoofers produce powerful yet articulate bass, remaining true to even the most subtle low-frequency variations.

High-Class Neodymium

Neodymium, a rare-earth material, enhances efficiency, power handling, and weight reduction. Using a 20% stronger magnetic field than typical neodymium grades, this new design enables precise control and higher force.
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Tour Grade Solution

Designed for rigorous touring, SUB 9000 Series subwoofers feature tour-ready, weatherproof plywood construction with a durable polyurea finish. The included magnetic rain cover protects the connection panel from rain and dust, while rugged powerCON TRUE1 TOP AC connectors ensure reliable power delivery in any environmental condition. Subs are stackable and lightweight, have ergonomic handles with rubber grips, and are designed for easy set-up and tear-down. M20 pole mounts on the top and side of the cabinet offer flexible top speaker placement. Connections for a detachable front cart are included, enabling easy transport on wheels (cart sold separately).
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Bass Motion Control

Um eine erweiterte Basswiedergabe und mehr Leistung zu erzielen, ersetzte unser Entwicklerteam den Standard-Hochpassfilter durch eine zukunftsweisende Technologie. Wir stellen vor: BMC (Bass Motion Control), unser innovatives Feature zur Steuerung der Tieftöner-Auslenkung. Die Box mit BMC verarbeitet selbst die tiefsten hörbaren Frequenzen, ohne Kompromisse bei der Stabilität der Tieftöner einzugehen – für einen linearen, erweiterten Bassbereich und einen ausgewogenen Sound.

BMC ist ein Algorithmus, der das dynamische Verhalten des Tieftöners umfassend analysiert und auf Basis dieser spezifischen Daten ausschließlich übermäßige Auslenkungen einschränkt. Dies ermöglicht vollständige Freiheit bei der Signalwiedergabe durch den Schallwandler. Herkömmliche Hochpassfilter sollen Schäden am Tieftöner verhindern, beeinflussen jedoch gleichzeitig auch das Phasenverhalten. Dank des neuen BMC Algorithmus ist dieses Problem nun Geschichte.
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