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.
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 |