Sansui SP-95 (c. 1973)

The Sansui SP-95 is a sealed, two-way bookshelf speaker system from the early 1970s. It's a compact design with some careful engineering in the drivers. It was priced at ¥34,800 per unit around 1973.

The low end is handled by a 25.5 cm (~10") cone woofer built around what Sansui called a two-layer DL cone, with a special coating applied to reduce distortion. The roll edge is damped on both sides, and the voice coil uses a four-layer series winding. The tweeter is a 3.5 cm soft dome made from vegetable fiber. A flexible damping agent and layered glass wool brake it to control diaphragm deformation. Its voice coil uses lightweight copper-coated aluminum wire (C.C.A.W.) in a magnetic circuit rated at 11,000 gauss. Crossover is at 1500 Hz, with an 18 dB/octave low-cut and a gentler 6 dB/octave high-cut. A front control varies the high-frequency level continuously.

The enclosure got the same attention. The baffle and back plate are high-density plywood, and the rest is multi-layer particle board, with reinforcing materials to suppress unwanted resonance. Rated sensitivity is 90 dB/W/m (New JIS), impedance 8 ohms, and allowable input 45W. Frequency response is specified at 40 Hz to 20,000 Hz. Each speaker measures 330 × 521 × 305 mm and weighs 13.1 kg.

The record beyond the spec sheet is thin. No period reviews, production years beyond the circa-1973 price reference, or market history have surfaced. A single current eBay listing for a pair described them as "parts only," and a Craigslist ad for one unit noted it "sounds good" with some cosmetic wear. That is the extent of the documented owner experience. It appears to have been a modest, well-built offering rather than a flagship, but without catalog positioning data, that's inference, not fact.

Known specifications:

- **Type:** 2-way, 2-speaker, sealed (airtight) bookshelf system

- **Woofer:** 25.5 cm cone

- **Tweeter:** 3.5 cm soft dome (vegetable fiber)

- **Frequency response:** 40 Hz - 20,000 Hz

- **Allowable input:** 45W

- **Impedance:** 8 Ω

- **Sensitivity:** 90 dB/W/m (New JIS)

- **Crossover:** 1500 Hz (high cut 6 dB/oct., low cut 18 dB/oct.)

- **Dimensions:** 330 × 521 × 305 mm

- **Weight:** 13.1 kg

- **Price (1973):** ¥34,800 per unit