Graham · Speakers · Bookshelf Speakers
Chartwell LS3/5A
The Chartwell LS3/5A is Derek Hughes' recreation of the best-known BBC monitor, which evolved from the LS3/5.
fig. 01 · speakers
Chartwell LS3/5A
From Graham
The LS3/5A is the best-known of the BBC monitor designs, redrawn when parts for the original LS3/5 ran out. Derek Hughes rebuilt it with bespoke Volt and Seas drivers and a crossover derived from the BBC's Kingswood Warren research. Velcro holds the grille the way the original did.
Specifications
| System | 2 Way, sealed enclosure |
|---|---|
| Enclosure | Thin wall construction, 12mm birch plywood |
| Finish | Real wood veneer |
| Dimensions (w/h/d) | 19cm by 30.5cm by 16.5cm |
| Weight | 5.3kg |
| Frequency response | 70Hz to 20kHz, ±3dB |
| Nominal impedance | 11Ω |
| Sensitivity | 83dB SPL (2.83V, 1m) |
| Maximum output | 95dB for a pair at 2m |
| Bass/midrange | 110mm |
| Tweeter | 19mm dome tweeter |
| Recommended amplifier power | 25 to 50 watts unclipped programme |