Kenwood LS-350 (1970s)

Name: Kenwood LS-350
Brand: Kenwood

Documentation on the Kenwood LS-350 is thin. What the record shows: it was a 3-way, floor-standing, bass-reflex speaker from Kenwood's 1970s lineup, built around a substantial 30cm cone woofer, a small cone midrange, and a horn-loaded tweeter. It shipped with an integrated stand, and at 19kg it was as much furniture as transducer. The period press covered it, including a roundup of speaker systems in HiFI-Stereo (December 1970, p.132).

Two period sources agree on the basics: impedance is 6 ohms and the crossover points sit at 550Hz and 4.5kHz. Past that, the specs split depending on which database you check. Frequency response is given as either 40Hz - 22kHz or 38Hz - 35kHz, and maximum input as either 50W or 60W. The gap likely comes from a rated figure versus a maximum figure, but there is no manufacturer manual to settle it, so both ranges are best treated as approximate. Sensitivity is listed at 91dB/W·m, which is respectably efficient for the era.

The midrange driver is where the record gets murky. One source lists it as an 8cm cone, another as 6.5cm, within the same reference. Period Japanese catalogs are known for this kind of inconsistency, and without a service manual it's hard to say which is correct.

Beyond these basics, almost nothing is recorded - no original price, no market context, no collector lore. It appears to have been a middle-tier floorstander from Kenwood's early high-fidelity push, aimed at buyers who wanted full-range sound without stepping up to the company's more celebrated models.

Type: 3-way, floor-standing, bass-reflex
Woofer: 30cm cone
Midrange: 8cm or 6.5cm cone (sources conflict)
Tweeter: horn type
Crossover: 550Hz, 4.5kHz
Impedance: 6 ohms
Sensitivity: 91dB/W·m
Dimensions (with stand): 240 × 965 × 330mm (W×H×D)
Weight (with stand): 19.0kg