HD 12-A MK4
ACTIVE TWO-WAY SPEAKER

RCF cares about your sound. The new D-Line MK4 speakers boosts the performance with a series of brand new transducers, improves the sound quality with the revolutionary FiRPHASE processing and renew the grille design to exalt the professional look. The vocals are natural, the sound is clear at long distances, the SPL power is stable at very high levels. The concept of the HD-Line derives from the touring industry, bringing in an elegant and compact cabinet all the experience of RCF professional sound with the maximum reliability and strength for the intensive use on the road. Connect your microphone, your device or your mixer to the speaker and turn up the volume: real plug&play. Perfect as a main front of house in small PA systems, high powered floor monitoring and unobtrusive fixed installation.

1400 watt 2-way peak power
130 dB max SPL
Digital bi-amplification, SMPS
DSP sound processing
90° x 60°, wide dispersion constant directivity horn
12" woofer, high power, 2.5" voice coil
1.0" HF driver, titanium dome, neodymium 1.5" voice coil

FiRPHASE processing

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.

PHASE MATTERS

The design of the FIR filter for this specific purpose starts from an accurate measurement of the loudspeaker phase.

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-squares 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 (if necessary) by taking into account the weak points of the transducers and the resonances or cancellations due to the cabinet of the loudspeaker. This technique allows a deep control of phase at the mid-low frequency with relatively small filters, reaching a higher resolution than that one as theory suggests.

SPECIFICATIONS
Acoustical specifications  

FREQUENCY RESPONSE: 45 Hz ÷ 20000 Hz
 
MAX SPL @ 1M: 130 dB
 
HORIZONTAL COVERAGE ANGLE: 90°
 
VERTICAL COVERAGE ANGLE: 60°
Transducers  
COMPRESSION DRIVER:
1.0'', 1.5'' v.c
 
WOOFER: 12'', 2.5'' v.c

Input/Output section  

INPUT SIGNAL: bal/unbal
 
INPUT CONNECTORS: XRL, Jack
 
OUTPUT CONNECTORS: XLR
 
INPUT SENSITIVITY: -2 dBu/+4 dBu
 
MIC. INPUT SENSITIVITY: -32 dBu

Processor section  
CROSSOVER FREQUENCIES: 1800 Hz
 
PROTECTIONS: Thermal, RMS
 
LIMITER: Soft Limiter
 
CONTROLS: Volume, Boost, Mic/Line

Power section  
TOTAL POWER: 1400 W Peak, 700 W RMS
 
HIGH FREQUENCIES: 400 W Peak, 200 W RMS
 
LOW FREQUENCIES: 1000 W Peak, 500 W RMS
 
COOLING:Convection
 
CONNECTIONS: VDE

Standard compliance  
CE MARKING: Yes

Physical specifications  
CABINET/CASE MATERIAL: PP Composite
 
HARDWARE: 1 x M10 top, 1 x M10 bottom, 3 x M6 bottom
 
HANDLES: 1 Top, 2 Side
 
POLE MOUNT/CAP: Yes
 
GRILL: Steel
 
COLOUR: Black

Size  
HEIGHT: 647 mm / 25.47 inches
 
WIDTH: 380 mm / 14.96 inches
 
DEPTH: 380 mm / 14.96 inches
 
WEIGHT: 18.3 kg / 40.34 lbs

Shipping informations  
PACKAGE HEIGHT: 760 mm / 29.92 inches
 
PACKAGE WIDTH: 500 mm / 19.69 inches
 
PACKAGE DEPTH: 500 mm / 19.69 inches
 
PACKAGE WEIGHT: 21.4 kg / 47.18 lbs

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