Marantz LS-70V (circa 1988)
Little is documented about the Marantz LS-70V outside of its Japanese-market listing. The record shows a compact, 2-way, 3-speaker bass reflex system from around 1988, priced at ¥80,000 for a pair. Marantz called it a "free-field type" speaker system. The idea was that you could enjoy music regardless of your listening position, and place the speakers just about anywhere.
The driver lineup is unusual for a bookshelf-style speaker. One 20 cm cone woofer handles the low band, and two 7.7 cm cone tweeters cover the highs, crossing over at 2 kHz. The woofer has an oven-press cone and center cap for added strength, borrowed from professional-use units. It also gets a double magnet and a 6-layer voice coil for high input tolerance. The tweeters use a special press-manufacturing method with a lightweight voice coil bobbin to improve energy characteristics. Rated input is 120W with a 400W maximum, sensitivity is 89 dB/W/m, and impedance is 8Ω. Playback frequency range is listed as 40 Hz to 20,000 Hz.
The LS-70V has genuine anti-magnetic shielding, so it can sit next to a TV. The enclosure uses high-density pressboards chosen to withstand rough use. Free installation was possible with separately sold accessories: the LSS-10 tripod stand (¥20,000 each) or the LSW-10 ceiling hanging bracket (¥15,000 per pair). Dimensions are 497 mm wide, 272 mm high, and 231 mm deep. Each speaker weighs 8.0 kg.
No independent reviews, owner impressions, or current market pricing have surfaced in the research. The record is essentially a single Japanese database entry, so collector demand and real-world performance remain undocumented.
- Type: 2-way, 3-speaker, bass reflex, setting-free, anti-magnetic (EIAJ)
- Drivers: 20 cm cone woofer, 2 × 7.7 cm cone tweeters
- Impedance: 8 Ω
- Frequency range: 40 Hz – 20,000 Hz
- Rated input: 120W / Max input: 400W
- Sensitivity: 89 dB/W/m
- Crossover: 2,000 Hz
- Dimensions: 497 × 272 × 231 mm (W×H×D)
- Weight: 8.0 kg each
- Original price: ¥80,000 per pair (circa 1988)
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