Beskrivning
Key Features
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DOUBLE ROLL SURROUND & DRIVER TECHNOLOGY
SIGMA 8 uses the latest in Wharfedale Pro driver technology: For the LF drivers, engineers have incorporated a curvilinear, double-roll surround for smooth mid-high transitions and stability for low through to mid range frequencies. With improved thermal dissipation, users can expect consistent delivery at the highest of volumes throughout a performance. The 1 inch polymer diaphragm HF driver is equally robust in design – using a solid aluminum rear plate, the HF driver is strengthened for durability and heat is dissipated efficiently for demanding environments. Wharfedale Pro engineers have selected a 90° x 60° elipitical waveguide optimised for wide coverage for fixed installation purposes.
ACOUSTICALLY MATCHED CABINET
Wharfedale Pro engineers have matched the acoustic properties of the cabinet to the proprietary driver technology within, while taking physical aspects into consideration to ensure optimal positioning and size for installation. By using a newly-developed angled-corner port system, cabinet height and overall size has been reduced – ideal for unobtrusive mounting within your venue. Additionally the angle-corner port system is fine-tuned acoustically to ensure low- end punch – just as you would expect with a larger PA speaker. The cabinet of the SIGMA 8 loudspeaker also features a pole mount socket ensuring the long-throw HF driver projects the sound directly to your audience. There are also 5 x M8 rigging points for safe and secure flying where needed. SIGMA 8 is also coated in the latest generation chip-resistant, Rhino Rock paint.
FINE-TUNED CROSSOVER
The crossovers ensure perfect integration between the drive units and acoustic properties of the cabinet. Electronic components are carefully selected, while over-complex networks have been avoided to maintain a pure and strong audio signal. Engineers have fine-tuned the crossover points for vocal intelligibility and tuned the high frequencies for long-throw to ensure clear coverage right to the back of your venue.
SPECIFICATIONS
| Model Name | SIGMA-12 |
| System Type | Passive |
| Configuration | Two-way |
| Frequency Response (+/-3dB) | 55Hz-18kHz |
| Frequency Range (-10 dB) | 60Hz-20kHz |
| Sensitivity (2.83v/1m) | 98dB |
| Calculated Maximum SPL @1m | 129dB |
| System Rated Impedance | 8Ω |
| Low Frequency Transducer | |
| Size | 305mm / 12” |
| Voice-Coil Size | 64mm / 2.5” |
| Rated Impedance | 8Ω |
| LF Power (re:AES2-2012) | 300W |
| High Frequency Transducer | |
| HF Driver Type | Compression Driver |
| Voice-Coil Size | 44mm / 1.75” |
| Exit Size | 1″ |
| Diaphragm Material | Titanium |
| Rated Impedance | 8Ω |
| HF Power (re:AES2-2012) | 40W |
| Nominal Coverage (H x V) | 90° x 60° |
| Power | |
| System Continuous Power | 300W |
| System Programme Power | 600W |
| System Peak Power | 1200W |
| Crossover frequency | 2.2kHz |
| Input Connector | 2 x NL4 (speakON compatible) |
| Hardware | Dual-angle (0° or 10°) 35mm pole socket M8 x 5 2 handles on sides |
| Enclosure | |
| Enclosure Material | 15mm MDF |
| Finish | Black or white |
| Grille Material & Finish | 1.2mm steel, painted |
| Dimensions – Unpacked | |
| Height | 537mm / 21″ |
| Width Front | 354mm / 14″ |
| Width Rear | 218mm / 8″ |
| Depth | 359mm / 14″ |
| Dimensions – Packed | |
| Height | 625mm / 24.6″ |
| Width Front | 468mm / 18.4″ |
| Width Rear | 260mm / 10.2″ |
| Depth | 404mm / 15.9″ |
| Weight | |
| Net Weight | 18.2kg / 40lbs |
| Gross Weight | 20.9kg / 45lbs |
