The BBC LS3/5
The LS3/5 is perhaps the best-known of all the BBC's monitor designs. The BBC needed a small monitor that was suitable for critical assessment of programme quality in cramped OB vehicles and control rooms, and nothing suitable was available commercially. At the same time, a separate research project - an investigation into acoustic scaling of studios - had developed a miniature loudspeaker, and it was realised that it could be adapted for monitoring use. After much developement, the original LS3/5 was born.
Specifications
| System |
2 Way, sealed enclosure |
| Enclosure |
Thin wall construction, 9mm birch plywood, removable rear panel |
| Finish |
Real wood veneer |
| Dimensions (w/h/d) |
19cm by 30cm by 17cm |
| Weight |
5.3kg |
| Frequency response |
70Hz to 20kHz, ±3dB |
| Nominal impedance |
9Ω |
| Sensitivity |
83dB SPL (2.83V, 1m) |
| Maximum output |
95dB for a pair at 2m |
| Bass/midrange |
110mm Bextrene |
| Tweeter |
19mm Dome tweeter |
| Recommended amplifier power |
25 to 50 watts unclipped programme |
