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508/2B
8" COAXIAL CEILING LOUDSPEAKER
Radian’s 508/2B is quite simply the best 8” ceiling loudspeaker in the world. It is an 8” coaxial loudspeaker with an 8” LF cone section and a 1” exit HF compression driver. Unlike inferior 8” ceiling speaker designs that use dome tweeters as HF devices, Radian uses a true 1” exit compression that provides clean, clear articulation and intelligibility for ceiling installations up to 22 feet in height. Available with optional passive network as Radian model 508/2BC.
Ă‚Â Product Sheet EASE File
Specification
| FREQUENCY RESPONSE | 50 Hz - 20 kHz |
| POWER HANDLING | 250 watts AES, 500 watts program |
| SENSITIVITY | 95 dB |
| RECOMMENDED CROSSOVER | 1800 Hz |
| IMPEDANCE | 8 ohms |
| MAX SPL | |
| 70V TRANSFORMER, 30 W | |
| 100V TRANSFORMER, 30W | |
| LF DRIVER | |
| HF DRIVER | |
| DISPERSION EXIT | |
| D.C. RESISTANCE | |
| VOICE COIL DIAMETER | LF 2 |
| RECOMMENDED ECLOSURE | |
| DIAPHRAGM MATERIAL | 0.002 |
| DIAPHRAGM SUSPENSION | |
| MAGNET | |
| WOOFER CONE MATERIAL | Reinforced Paper |
| VOICE COIL MATERIAL | |
| BASKET MATERIAL | Stamped Steel |
| OVERALL DIAMETER | 8.25 |
| POLARITY | |
| MOUNTING BOLT CIRCLE | 7.75 |
| CUT-OUT DIAMETER | 7.125 |
| OVERALL DEPTH | 5.0 |
| NORMINAL DISPERSION | 90° Conical |
| DIMENSIONS (HWD) | |
| ENCLOSURE CONSTRUCTION | |
| FLUX DENSITY | |
| INPUT CONNECTORS | |
| MOUNTING | |
| FLY POINTS | |
| STANDARD FINISH | |
| QTS | 0,3961 |
| QMS | 4,97 |
| QES | 0,4304 |
| VAS | 0.8 (23.5 liters) |
| FS (Hz) | 73 |
| XMAX (IN) | 0,03 |
| RE (V) | 6,3 |
| SD (IN²) | 34,13 |
| Product Callout Bullets | True 1 |
| THROAT DIAMETER | |
| NET WEIGHT | |
| SHIPPING WEIGHT |