RCF Live Sound HDM 45-A Active 2200W 2-Way 15″ Powered Speaker with 4″ HF

RCF Live Sound HDM 45-A Active 2200W 2-Way 15″ Powered Speaker with 4″ HF

The HDM 45-A speaker boosts the performance with a top-quality two channel amplifier, RDNet networked management, RCF precision transducers, the FiRPHASE processing, and a rugged cabinet. While being one of the most powerful speakers in composite material in its category, it delivers clear, detailed and smooth sound from low to very high levels, with low distortion and fast transient response. The HDM concept is inspired by the touring industry, packing in an elegant and lightweight cabinet the maximum reliability and strength for intensive use on the road. Perfect as a main front of house speaker in PA systems, high-powered floor monitor, or unobtrusive infill system when combined with the RCF HDL System speakers.

RCF RDNet

Networked control and much more

RDNet is a robust management network and control platform for small, medium and large arena-sized sound systems, as well as complex and extended installations. Based on a proprietary network protocol, RDNet provides intuitive control and monitoring of every connected device/object in the RCF audio system. Each device has DSP to address specific presets or modifications of parameters to single or groups of objects. A network user can change level, delay, EQ (linear phase FiR as well) and other settings, including advanced subwoofer configurations. RDNet is not only designed for loudspeakers-you can control parameters and routing of multiple RCF devices, such as digital matrixes or amplifiers.

Legendary Transducers

Superior Compression Drivers

The ND940 Compression Driver in pure Titanium with a 4 inches voice coil allows a crossover point at only 650 Hz. This allows a better impulse response, fast decay and superior efficiency. Lightweight and powerful, RCF neodymium drivers are a reference in performance and reliability.

Direct Drive Technology

The voice coil features a high-temperature kapton former. The assembly process takes advantage of the RCF proprietary Direct Drive technology. The diaphragm’s suspension has been designed following extensive studies aimed at minimizing distortion and extending low frequency range.

Potent Woofer

The low-frequency transducer is a high-power 15” neodymium woofer with a 3.5” voice coil, delivering a punchy bass. Reproduction of the mid-bass frequencies is accurate, transparent and free from distortion.

The Transducers Innovators

RCF boasts over 75 years of experience in designing and manufacturing transducers, with a particular focus on moving coil loudspeakers. Our transducers are engineered to optimize the balance between power delivery and sound purity, achieving minimal distortion and the capacity to endure high power levels for extended periods.

Heritage

RCF’s legacy includes pioneering advanced transducer technologies and the application of high-tech materials such as Neodymium, Carbon Fibre, Titanium, Kevlar, Modified Polyether Ether Ketone (PKX), Kapton, and Mylar hybrids.

Endurance

Our models are subjected to a rigorous evaluation process, featuring a 200-hour continuous signal test designed to challenge the transducers’ limits. This demanding stress test ensures that only transducers meeting our stringent standards for durability and performance are selected.

Vanguard

RCF is at the forefront of technological advancements, continually striving for the optimal listening experience. Our design methodology integrates rigorous measurement tests with critical listening sessions, underscoring our commitment to precision tailored for the human ear.

High-Grade Materials

The inclusion of a high-damping cellulose cone, double polycotton-polyurethane spiders for outstanding stability and control over the moving mass, and a substantial heavy-gauge treated triple cloth surround, contribute to the moving mass’s exceptional strength and excursion control. Additionally, a water-repellent treatment ensures suitability across various environments.

Advanced Compression Drivers

Kapton®, extensively used in space and for temperature-resistant insulation, is chosen for its ability to retain a unique combination of mechanical properties under the most extreme conditions of heat and vibration.

Titanium, recognized for its high resistance to corrosion, fatigue and temperature, with high tensile strength-to-density ratio and crack resistance merges durability with superior frequency response.

PKX (Modified Polyether Ether Ketone) is a rigid, yet lightweight material enhanced with reinforcing ribs for slim dome designs, offering greater precision and reliability than other polymeric materials.

High Power Magnet Designs

Magnet geometry and configuration are optimized for maximum flux density, incorporating thermal management to ensure reliability. Techniques such as computer-aided magnet optimization and FEM analysis refine magnet weight, flux density, and field saturation, significantly reducing driver weight and harmonic distortion.

The T-pole design minimizes flux modulation in the magnetic assembly during typical voice coil movements within the gap. We developed specially designed rings in copper for compression drivers and aluminum for cone transducers. Pressed onto the pole piece, the ring modifies and reduces the magnetic circuit and voice coil inductance, enabling a controlled extension of the acoustic frequency response.

High-Class Neodymium

Neodymium, a rare earth material, enhances efficiency, power handling, and weight reduction. With a 20% stronger magnetic field than typical neodymium grades, our design enable precise control and higher force.

Ferrite Ceramics

Our engineering team has introduced a new ferrite magnet that delivers higher flux in a lightweight design, setting a new standard for ferrite products by minimizing weight without compromising performance.

Dual Forced Hyperventing System

Our cooling designs combine various components to create an ideal ventilation system. The RCF engineering team emphasizes finned cooling channels and optimizes the surface area of the front magnetic plate for efficient heat dissipation. The double silicone sealed spider design functions as an air pump, expelling hot air and drawing in fresh air with each movement of the cone assembly.

Diaphragm Assembly

The diaphragm and suspension are precision-crafted significantly reducing distortion by eliminating resonance points and aiding in suspension breakup mode control. RCF has mastered an oxygen-free process for molding titanium ultrathin films into high-quality, precisely shaped diaphragms. Our current Polyimide-Kapton dome with new bonding technology and reinforced ribs, is ten times more durable than previous models.

Direct Drive Voice Coil

This setup ensures optimal energy transfer between the voice coil and the dome assembly, resulting in a smoother, extended frequency response beyond 10 kHz, reducing break-up modes, and lowering distortion. This assembly delivers not only high power handling but also excellent mechanical and thermal properties, making RCF compression drivers robust and reliable.

Phase Plugs

Through extensive computer-assisted mathematical modeling and testing, we’ve developed phase plug geometries that ensure balanced acoustic performance by controlling and lowering air distortion and maximizing output. This allows for a lower compression ratio, generating substantially lower distortion artifacts. The result is high output with smooth acoustic frequency response and low harmonic distortion artifacts.

Extreme Power Handling

Significant investment in material science, design topology research, and power testing enables us to produce products with unmatched structural integrity, optimal thermal properties, and superior power handling capabilities. Our engineers have developed composite polyimide and fiberglass former materials that withstand peak temperatures above 380°C, far exceeding the thermal demands of contemporary professional audio systems.

Inside/Outside Voice Coils

RCF’s unique voice coil design offers several advantages: the dissipation surface is doubled; the adhesion area to the former is doubled; and during thermal expansion, the former is squeezed between inside and outside layers, offering the best mechanical resistance.

Powerful Class D Amplifiers

Constant linearity from very low-level signals to the maximum amplifier output. A 32-bit floating-point DSP with 48 kHz processing takes care of:

• 2-way crossover and transducer alignment
• 8 programmable equalizations
• Programmable output time delay
• Input Sensitivity reduction
• Soft limiter for very high signal inputs
• RMS monitoring and transducer protection
• Input noise reduction

A specially developed algorithm takes care of the frequency dependent soft limiter offering to the listener the same linearity of the system, from very low-level signals to the maximum amplifier output.

Rental Proof

D LINE cabinets are molded with a special polypropylene composite material designed to dampen vibrations even at maximum volume settings. From molding to the final texture, D-LINE offers maximum reliability and strength for intensive use on the road. The advanced vented architecture offer high efficiency and low distortion. The speaker is equipped with a top handle and two side handles with rubber handgrips for greater portability.

High Demand Applications

The multi-purpose cabinet shape will allow every D-LINE model to be used in the standard configuration as well as in stage monitor mode. Two M10 and three M6 threaded inserts available for optional mounting hardware. This makes the speakers perfect for use in mounted or flown situations. When used on top of a SUB Series the HD speaker becomes an incredibly powerful PA system.

New Perspective on Linearity

RCF speakers are designed using a proprietary and advanced digital FiR technology, conceived to deliver transparent sound, absolute clarity, and perfect imaging to the listener.

The special FiRPHASE filters allow for coherent distribution of sound for all listeners without phase distortions, ensuring minimum latencies in the system.

Features

• 133 dB Max SPL
• 2200 Watts two-way power
• Innovative DSP Processing with FiRPHASE
• 650 Hz crossover point for perfect vocal reproduction
• 15″ Neodimium Woofer, 3.5″ v.c.
• 1.4″ throat Titanium Compression Driver, 4.0″ v.c. Neodymium
• 90°x60°, wide dispersion constant directivity horn
• RDNet compatible
• Silent Fanless Class-D Amplifier
• Ultra-Light weight

Brand	RCF
Condition	New

Acoustical Specifications:

• Frequency Response: 45 Hz / 20000 Hz
• Max SPL @ 1m: 133 dB
• Horizontal coverage angle: 90°
• Vertical coverage angle: 60°

Transducers:

• Compression Driver: 1.4'' neo, 4.0'' v.c
• Woofer: 15'' neo, 3.5'' v.c

Input/Output Section:

• Input signal: bal/unbal
• Input connectors: XLR, RDNet Ethercon
• Output connectors: XLR, RDNet Ethercon
• Input sensitivity: -2 dBu/+4 dBu
• Mic. Input Sensitivity: -32 dBu

Processor Section:

• Crossover Frequencies: 650 Hz
• Protections: Thermal, HF
• Limiter: Fast Limiter
• Controls: proces., 8 sel. presets
• RDNet: Yes

Power Section:

• Total Power: 2200 W Peak, 1100 W RMS
• High frequencies: 600 W Peak, 300 W RMS
• Low frequencies: 1600 W Peak, 800 W RMS
• Cooling: Convection
• Connections: Powercon IN/OUT

Standard Compliance:

• Safety agency: CE compliant
• EN54-16 certified: Yes

Physical Specifications:

• Hardware: 1 x M10 top, 1 x M10 bottom, 2 x M10 side
• Handles: 1 Top, 2 Side
• Pole mount/Cap: Yes
• Color: Black

Size:

• Height: 714 mm / 28.11 inches
• Width: 442 mm / 17.4 inches
• Depth: 397 mm / 15.63 inches
• Weight: 22 kg / 48.5 lbs