DYNACORD´s COBRA-4-FAR is an active 3-Way cabinet for use as a farfield cabinet in compact line arrays and other demanding applications, where wide horizontal coverage, extremely low distortion and a low sensitivity against acoustic feedback are mandatory.
Depending on the application, the COBRA-4-FAR cabinet can be used up to 80m throw distance. For the high frequencies of the COBRA-4-FAR, three Electro- Voice DH2T titanium diaphragm drivers are connected to a low-resonance waveguide that creates a coherent isophasic wavefront with a precisely defined vertical dispersion angle of 5° at 10kHz. Stacking of COBRA-4-FAR cabinets automatically increases the height of the isophasic wavefront due to the mechanical design of the low-resonance waveguide. The mid-range of the COBRA-4-FAR uses selected DYNACORD C8 cone transducers in a line array configuration. The C8 transducers show significantly lower distortion than typical horn/compression driver combinations.
Therefore an extremely natural sound quality over large distances can be achieved. The DYNACORD COBRA-4-FAR uses a vented direct-radiator design equipped with an Electro-Voice EVX155 for the low frequencies. The cabinet is equipped with an electronic circuit called VOICE COIL TRACKING PROTECTION. This circuit senses the terminal voltage of the transducers and simulates the thermal behaviour of the transducer voice coils. In case of potential thermal overload the power applied to the speakers is reduced to a safe level. Power amps up to 1200W/8Ohms can be used in order to have maximum dynamic range without the danger of thermal overload in non-controlled situations. The VOICE COIL TRACKING PROTECTION exhibits “soft” switching characteristics, so no annoying clicks or pops are audible. The circuitry automatically resets after the voice coil temperatures have reached a safe value.
Cabinet MID - HIGH Cabinet
Configuration Compact line array / active 3-way
Nominal impedance: LOW - MID - HIGH 8 Ohms - 8 Ohms - 8 Ohms
Rated power RMS: LOW - MID - HIGH 400 W - 200 W - 200 W
Program power: LOW - MID - HIGH 800 W - 400 W - 400 W
SPL 2,83 V / 1m 1 W / 8 Ohm 100 dB
Max. SPL 1m (calculated) 131 dB
Frequency response ( -10dB ) 90Hz - 17kHz
measured with DSP 244 preset COB4TOPFAR200203
Coverage angle 1 kHz (-6dB) H 120° x V 30°
Coverage angle 10kHz (-6dB) H 90° x V 5°
Active crossover frequency 124Hz - 700Hz - 4kHz
Voice coil tracking protection LOW - MID - HIGH
Components HIGH DH 2T Line array
Order No. 3x 355 391
Components MID C8 Line array
Order No. 4x 361 376
Components LOW EVX155
Order No. 359 561
Connector wiring HIGH 8-pole 4+/4-
Connector wiring MID 8-pole 3+/3-
Connector wiring LOW 8-pole 2+/2-
Connector model Speakon 2x NL8 MPR
Dimensions (WxHxD) mm 600 x 495 x 717
Shipping weight 67 kg
Net weight 63.5 kg
Enclosure material Birch plywood 18mm
Finish Black polyurethane
Grille Powder coated steel
Handles 2
Ancra Tracks 4
Webbing strap point 2
Front cover 1
Castors 4