Product Description for the RCF HDL 30-A
Active Two-Way Line Array Module
The
RCF HDL30-A is a compact bi-amped 2-way active touring system for medium to
large events, both indoors and outdoors. It features two 10-inch woofers and an
impressive 4-inch titanium compression driver. The time coherent waveguide is
the result of in-depth research and design. HDL 30-A is the first line array in
a composite cabinet with zero-degree phase and ultra-linear amplitude response.
The built-in 2200 watt class-D amplifier delivers excellent playback clarity
and up to 137 decibels SPL max. The RCF HDL30 -A features state of the art RCF
transducers with neodymium magnets. Considering its acoustical power, it has a
remarkably low weight for easy handling and flying.
HDL
30-A is an incredible achievement for RCF. An ultra compact and
lightweight system with a top of the class rigging and superior sound.
The
RCF HDL30-A features state of the art RCF transducers with neodymium magnets.
RCF’s experienced engineering teams have specially developed and matched each
component — starting from the power supply through the input board to the
amplifiers and transducers right up to the complete HDL-30A System. All the
parts are designed and produced by RCF.
4 Path Waveguide
The
custom 4 PATH designed waveguide allows a precise coverage of 100 x 15 degrees,
while also delivering an excellent, linear high-frequency response. The unique
shape of the four ducts forming the guide creates an ideal isophasic load
from 680 Hz to the highest audible frequencies.
RCF's
Class-D power amplifier technology packs huge performance operating with high
efficiency into a lightweight solution. HDL amplifiers deliver a ultra-fast attack,
realistic transient response, and impressive audio performance. The amplifier
features a solid machined aluminium structure
which not only stabilises the amplifier during
transportation but also helps the fan-less heat dissipation. All the HDL
amplifiers present SMPS power supply section to produce maximum output and
minimum weight.
A New Perspective On Linearity
RCF
speakers are designed by using FiRPHASE, a
proprietary and advanced FIR filtering technology, conceived for delivering
transparent sound, absolute clarity and perfect stereo images to the listener.
The FiRPHASE algorithm optimizes dynamics, amplitude and phase patterns,
ensuring at the same time minimum system latency.
High Frequencies
·
High-performance
RCF ND940
·
4.0-inch
diaphragm titanium compression driver
·
1.4-inch
exit throat
·
680
Hz Crossover Point
4 Path Waveguide
The
custom 4 PATH designed waveguide allows a precise coverage of 100 x 15 degrees,
while also delivering an excellent, linear high-frequency response. The unique
shape of the four ducts forming the guide creates an ideal isophasic load
from 680 Hz to the highes t audible frequencies.
Low Frequencies
·
2 X
2.5”voice coil neodymium 10” woofers
·
Low
frequencies handling down to 50 Hz
·
Water
resistant fibre doped cone
·
Polycotton
M-roll surround
·
Hypervented
magnetic structure
The
high strength enclosure in composite polypropylene has a revolutionary new
rigging concept inspired by its big brother: the RCF HDL-50A. Compared to its
acoustical power, it has a remarkably low weight for easy handling and flying.
The integrated mechanics are both fast and reconfigurable, allowing the system
engineer to create J-shaped and spiral arrays starting with 0.2° angles.
The
hardware is designed for an easy and fast setup. The angle can be adjusted
before to hang the system, on the ground, and slip automatically into the
correct position when pulling up the array. Up to 20 HDL 30 -A modules can be
fastened on a single flybar.
Firphase
RCF
speakers are designed by using FiRPHASE, a
proprietary and advanced FIR filtering technology, conceived for delivering
transparent sound, absolute clarity and perfect stereo images to the listener.
The FiRPHASE algorithm optimizes dynamics, amplitude and phase patterns,
ensuring at the same time minimum system latency.
Phase Matters
The
design of the FIR filter for this specific purpose should start from an
accurate measurement of the loudspeaker phase. The FiRPHASE algorithm uses this
measurement and adapts the loudspeaker’s phase without touching the amplitude
equalization. The heart of the advanced technique used by FiRPHASE is a
recursive method (Least Squared method) combined with a proprietary algorithm
that calculates the best FIR filter coefficients set in according to amplitude
and phase constraints. The algorithm corrects phase and amplitude (when necessary)
by taking into account the weak points of the transducers and the resonances or
cancellations due to the cabinet of the loudspeaker. Despite the design
perfection of our transducers and cabinets, we realize that the phase
corrections are the “missing point” for the perfection. This technique allows a
deep control of phase at mid-low frequencies with relatively small filters,
reaching a higher resolution than that one as theory suggests.
