LS5/8 是 BBC 的旗艦設計，其開發是因為與老化的 LS5/5 相比，需要更高的聲壓級以及更高的透明度和一致性。這是第一款使用聚丙烯振膜的 BBC 揚聲器，比 Bextrene 更輕，效率更高，音染更低。經過仔細研究的錐體輪廓使裝置能夠成功地工作到中音範圍。
經過數月的密集開發，Graham Audio LS5/8 進一步完善了這個概念。它與 Derek Hughes 和 Volt Loudspeakers 共同設計，並在英國獲得許可製造，具有獨特的 12 英寸低音/中音單元，與 LS5/9 中使用的相同 34 毫米 Audax 高音單元相結合。
與所有 Graham Audio BBC 監聽音箱一樣，箱體採用精心調校的結構，採用高品質樺木膠合板和硬木指揮棒。 12 毫米麵板採用質量負載，可將共振移離中頻區域，並優先使用岩棉而不是廉價泡棉來進行空氣阻尼。
該設計保留了與 LS5/9 相同的中音清晰度和平衡性，但在較大的房間中提供了擴展的低音響應和更高的高音量權威。兩種設計之間音質的連續性意味著工程師可以在錄音和母帶處理過程中充滿信心地在兩個不同的揚聲器之間切換。
LS5/8 最初被設想為主動設計，但 Derek Hughes 設計了被動分頻器，大大提高了原始設計的分辨率和成像，同時仍然符合嚴格的 BBC 規範。
Additional information
| Brand |
Graham Audio |
| Colour |
Cherry, Ebony, Oak, Rosewood, Walnut |
| Operating Principle |
2 way, Bass reflex |
| Speaker Drivers |
1 x 300mm Diaphnatone polypropylene bass / midrange driver, 1 x Son Audax HD13D34H tweeter |
| Impedance |
8 Ω |
| Sensitivity |
89 dB |
| Frequency Response |
40 Hz – 16 kHz ±3 dB |
| Recommended Amplifier Power |
50 W – 250 W |
| Construction |
Birch plywood, Thin wall damped construction |
| Dimensions (WxDxH) |
460 x 400 x 760 mm |
| Weight |
34 kg |
| Warranty |
5 years |
Brand
GRAHAM AUDIO - UK
Graham Audio is a British family-owned company headquartered in Newton Abbot, a small market town in Devon, southwest England. We are passionate about high-quality audio and believe that classic BBC loudspeaker design offers a neutrality, transparency, and authenticity that is hard to find elsewhere today. Using modern components and production techniques, we are able to maximize performance while maintaining the original design.
All loudspeakers are hand-assembled on-site. One person oversees every step of the production process, including testing and auditioning. A second person carefully inspects the finished product, repeating the tests as a matter of course and saving the results for future reference. As part of the testing procedure, all completed loudspeakers are compared to our master reference samples to ensure complete consistency.
Graham Audio is proud to work with some of the best minds in the industry, including Derek Hughes and Volt Loudspeakers. Our loudspeaker systems are available from carefully selected dealers worldwide, who have full demonstration facilities and will support you through the selection and setup process.
