The CD131 is a 1 inch (25.4mm) small format diaphragm compression driver. The 1 inch (25.4mm) exit is an industry standard. The CD-131 combines high BL and a very lightweight diaphragm assembly, producing high output that offers extended bandwidth and a well defined frequency response to 18 kHz. The driver has a rated low frequency response limit of 2 kHz and has a smooth response throughout its bandwidth. The CD131 features an industry standard bolt on mounting system that is ideally matched to commercially available bolt on horns.
| Electro Acoustic Specifications | |
|---|---|
| Nominal Chassis Diameter | |
| Impedance | 8 Ω | 
| Power Handling | 30 W (A.E.S.) | 
| Usable Frequency Range (-6dB) | 2 kHz - 18 kHz | 
| Sensitivity (1W - 1m) Wideband | 106 dB | 
| Flux Density | 1.25 Tesla | 
| Voice Coil Diameter | 1.375" / 34.4 mm | 
| Speaker Type | Compression Driver | 
| Sound Channel / Throat Size | 1" / 25.4 mm | 
| Rec. X-over Frequency (Filtered at 18dB/ Oct.) | above 2 kHz | 
| Effective Diaphragm Diameter | 1.33" / 34mm | 
| Voice Coil DC Resistance | 6.43 Ω | 
| Max Diaphragm Displacement | 0.011" / 0.3 mm | 
| Speaker Series | High Frequency Devices | 
| Materials of Construction | |
| Coil Former Material | Polyamide | 
| Voice Coil Material | Aluminium | 
| Magnet Material | Ferrite | 
| Surround / Edge Termination | Double Sinusoidal Roll Titanium | 
| Connectors | Push Button Spring Terminals | 
| Polarity | Positive voltage at red/ positive terminal causes positive pressure at throat exit | 
| Diaphragm Material | Titanium | 
| Mounting / Shipping Information | |
|---|---|
| Overall Diameter | 3.54" / 90 mm | 
| Depth | 1.73" / 44 mm | 
| Weight | 2 lb / 0.91 kg | 
| Shipping Weight | 2.16 lb / 0.98 kg | 
| Packing Carton Dimensions | (W) 95 (D) 95 (H) 71 mm | 
| Bolt Hole fixing Dimensions & Qty. | 4x M6 on 76.2 mm / 3" PCD |