Luxman 25C43 (1968)
The Luxman 25C43 is a bookshelf-type, 3-way bass reflex speaker system released in August 1968 at ¥23,000 per unit. It's compact but substantial: 425 mm wide, 600 mm tall, 260 mm deep, and 14 kg. It's built around a 25 cm cone woofer in what Luxman described as a "special bass reflex" enclosure.
Documentation on the 25C43 is thin. The Japanese sources that record it, audio-database.com and audio-heritage.jp, give full specs for the low end but list the midrange and high-frequency drivers as simply "unknown." There are no reliable details on the midrange driver or tweeter. What is recorded: the system covers 35 Hz to 18 kHz, handles up to 20W maximum input, presents an 8 Ω load, and delivers a high 98 dB output sound pressure level. The crossover points are set at 1.5 kHz and 5 kHz.
That 98 dB sensitivity figure is unusually high for a speaker of this era and size. It would have made the 25C43 an easy load for the modest amplifier outputs common in late-1960s Japanese systems. Beyond its listing in period equipment directories, almost nothing else is recorded about this model. No owner reviews, no service literature and no lineup context have surfaced in the archive's research.
- Type: 3-way, 3-speaker, bass reflex, bookshelf
- Woofer: 25 cm cone type
- Frequency response: 35 Hz – 18 kHz
- Maximum input: 20W
- Impedance: 8 Ω
- Output sound pressure level: 98 dB
- Crossover frequencies: 1.5 kHz, 5 kHz
- Dimensions: 425 × 600 × 260 mm (W×H×D)
- Weight: 14 kg
- Price at release (August 1968): ¥23,000 each
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