Description
The LS5/8 is the BBC's flagship design, and was developed because of the need for higher sound pressure levels and greater transparency and consistency than the ageing LS5/5 offered. This was the first BBC loudspeaker to use a polypropylene diaphragm which, being lighter than Bextrene, offered greater efficiency and lower colouration. A carefully researched cone profile enables the unit to work successfully well into the midrange.
After many months of intensive development, the Graham Audio LS5/8 refines the concept further. Designed in conjunction with Derek Hughes and Volt Loudspeakers and manufactured under license in the UK, it features a unique 12 inch bass/mid unit that is married to the same 34mm Audax tweeter that is used in the LS5/9.
Specifications
| System | 2 Way, reflex loading |
| Enclosure | Thin wall construction, birch plywood |
| Finish | Real wood veneer |
| Dimensions | 76cm by 46cm by 40cm |
| Weight | 34kg |
| Frequency response | 40Hz to 16kHz, ±3dB |
| Nominal impedance | 8Ω |
| Sensitivity | 89dB SPL (2.83V, 1m) |
| Maximum output | Over 110dB for a pair at 2m |
| Bass/midrange | 300mm Diaphnatone polypropylene |
| Tweeter | Son Audax HD13D34H |
| Recommended amplifier power | 50 to 250 watts unclipped programme |
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