DYNACORD´s COBRA-PWH is a Planar Waveguide Basshorn, equipped with the high-power Electro-Voice EVX 180B 18" transducer.
Frequency response is 30Hz - 150Hz (- 10dB), so the crossover frequency to Mid-Hi cabinets, e.g. DYNACORD´s COBRA-4-TOP, COBRA-4-Far or COBRATOP can be chosen strictly application-oriented between 80Hz and 130Hz. The cabinet is equipped with an electronic circuit called VOICE COIL TRACKING PROTECTION. This circuit senses the terminal voltage of the transducer and simulates the thermal behaviour of the woofer´s voice coil. In case of potential thermal overload the power applied to the speaker 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 temperature has reached a safe value.
The COBRA-PWH cabinet is made of 18mm birch plywood. All corner joints and braces are grooved and glued. The cabinet´s surface is coated with an extremely durable Polyurethane which exceeds the quality of a standard lacquer finish by an order of magnitude. A powder coated steel grille and a lockable cover protects the COBRA-PWH against damage during transport and bad environmental conditions.
Cabinet Subwoofer
Configuration Planar waveguide bass horn
Nominal impedance 8 Ohms
Rated power RMS 600 W
Program power 1200 W
SPL 2,83V / 1 m 1 W / 8 Ohm 101 dB
Max. SPL 1m (calculated) 132 dB
Frequency response ( -10dB ) 30 Hz - 150 Hz
measured with DSP 244 preset COB4TOPFAR200203
Active crossover frequency 124 Hz
Voice coil tracking protection Yes
Components EVX 180 B
Order No. 349 397
Connector wiring SUB (4-pole 1+/1-) ( 8-pole 1+/1-)
Connector model Speakon 2x NL4 MPR 2x NL8 MPR
Dimensions (WxHxD) mm 605 x 910 x 823
Shipping weight 76,2 kg
Net weight 72,0 kg
Enclosure material Birch plywood 18mm
Finish Black polyurethane
Grille Powder coated steel
Handles 6
Webbing strap point 4
Front cover 1
Castors 4