Lowell R-Series Ceiling Speaker Specifications
| PERFORMANCE |
|
| Power Handling |
· 12 watts RMS (nominal) measured per EIA Standard RS-426A |
| Sensitivity |
· 98dB SPL (peak), 93dB SPL (avg) measured 1Watt/1 Meter |
| Impedance |
· 8 ohms (nominal), 8.6 ohms @235Hz (minimum) |
| Freq. Response |
· 55Hz-12.5kHz (+6dB) |
| Dispersion Angle |
· 120° @ 2000Hz octave (-6dB) |
| PHYSICAL – WOOFER |
|
| Magnet Weight |
· 5oz. (134g) |
| Magnet Material |
· Strontium ferrite ceramic |
| Voice Coil Diameter |
· 1 inch (26mm) |
| Voice Coil Material |
· Copper wire |
| Cone Material |
· Dual cone paper with self edge surround |
| Terminals |
· Quick disconnect type – spade lugs |
| MECHANICAL |
|
| Grille / Baffle |
· 22 gauge perforated steel |
| Outside Diameter |
· WB-8 (Round): 12.875” Diameter
· SG-8 (Square): 11.428” x 11.428” |
| Transformer |
· 25v, 70v, or 25v/70v Combo |
| Transformer Taps |
· .25, .5, 1, 2, 4 Watts or .5, 1, 2, 4 Watts
(Model Dependent) |
| Finish |
· White Powdercoat |
Description
Lowell R-Series Ceiling Speakers
Lowell’s R Series 12W speaker assemblies are an excellent choice for quality general purpose paging and distributed music applications.
The R Series 12W assemblies are comprised of a factory assembled 8″ dual cone driver (Model 805) with a wired 25V, 70V, or dual voltage transformer, four choices of mounted grille, and optional volume control feature with knob style or screwdriver adjustment in the center of the grille. Speaker / transformer assemblies are manufactured to assure consistent performance with clear intelligibility and wide dispersion.
The dual cone Model 805 driver has a power rating of 12 watts RMS and employs a 5 oz. ceramic magnet. The cone is molded of a high fibre content material to provide a smooth, extended frequency response and a clean, natural sound.
To facilitate a variety of distributed applications each assembly includes a wired 25V or 70V transformer with .25, .5, 1, 2, and 4 watt taps; or a dual voltage 25/70V transformer with .5, 1, 2, and 4 watt taps.
