Spendor LS3/5 (1970s)
Here's the honest truth about the Spendor LS3/5: the name is genuinely confusing, because the LS3/5 was a BBC design, and the manufacturer most associated with building it in the 1970s was Rogers, not Spendor. Period trade listings from 1974 show the Rogers BBC LS3/5 Monitor advertised as a tiny sealed box measuring roughly 7½ × 6½ × 11 inches, with a claimed frequency response of 80–20,000 Hz (±3 dB) and each unit supplied with its own individual response curve graph. The same listings describe it as ideal for a small studio or mobile unit and call it the best small studio speaker they'd heard from such a small cabinet.
Where Spendor fits in is less clear from the surviving record. Spendor's own name appears alongside the BBC monitors in dealer listings of the era — one 1974 UK agent listed "ROGERS BBC LS3/6, BBC LS3/5" and "SPENDOR BCII/BCIII" as separate lines, which suggests Spendor was known for the BC series rather than the LS3/5 at that point. Later, Spendor did license and produce its own take on the LS3/5A lineage, and Audio (February 1985, p.82) noted in a comparison that the Spendor's bass lacked the impact to compete with the "bass hump" of the LS3/5A, though its midrange and treble stayed fast and clean. That review is about the broader LS3/5A family rather than a distinctly documented "Spendor LS3/5" model, so treat it as context rather than a spec sheet for this exact badge.
Beyond that, little is firmly documented about a Spendor-branded LS3/5 as a discrete product. What the record shows:
- BBC-licensed LS3/5 design, small sealed two-way monitor, 1970s.
- Cabinet roughly 7½ × 6½ × 11 in (per 1974 Rogers trade listings for the LS3/5).
- Claimed response 80–20,000 Hz ±3 dB; individual response curve supplied per unit.
- Positioned for small studios and mobile recording units.
- Spendor's documented 1970s output centers on the BCII/BCIII; the LS3/5 badge is most strongly tied to Rogers in period advertising.
If you're chasing a specific Spendor-labelled LS3/5, check the crossover and driver labels carefully — later LS3/5A variants are identified by crossover part numbers, and the badge alone won't tell you which version you have.
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