A bookshelf speaker system from Sony using a 20 cm woofer and 2.5 cm dome tweeter with bass reflex design.
Overview
The Sony SS-7050 is a 2-way, 2-speaker bass reflex system designed for bookshelf use. The speaker features a 20 cm cone woofer and a 2.5 cm dome tweeter, with a continuously variable tweeter level control for tonal adjustment.
Specifications
| Frequency characteristic | 45 Hz to 25 kHz |
| Output sound pressure level (new JIS) | 87dB/W/m |
| Impedance | 6 Ω |
| Maximum allowable input | 50W (Weighted pink noise) |
| Crossover frequency | 3.5kHz |
| External dimensions | Width 325 x Height 549 x Depth 272 mm |
| Weight | 13kg |
| Woofer | 20 cm cone type |
| Tweeter | 2.5 cm dome type |
| Tweeter level control | Continuously variable type |
| Enclosure material | 20 mm thick hard particleboards |
| Grill | Sa RUNNET uses a Beat Orange colored urethane grill net |
Design
The SS-7050 uses a low-distortion magnetic circuit and newly developed cone paper made from Scandinavian pulp with Sony's proprietary papermaking technology to increase rigidity and piston motion range. A dust-proof cap with high sound insulation suppresses abnormal noise radiation, and a notch in the center pole with thick copper plating or copper cap reduces nonlinear distortion. The woofer uses a metal bobbin to handle high input, and the edge is treated with thin special rubber cloth to eliminate a dip near 400 Hz. The diaphragm adhesive is a special rigid resin, and the lead wire uses high-purity imported copper foil with special resin to prevent disconnection. The crossover uses a large air-core coil with low DC resistance, and enclosure resonance is minimized through material selection, thickness, and reinforcement design.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Sony ps-5550 (1978-1980)
- Sony ps-lx5r (1983-1985)
- Sony ss-7220a (1970s)
- Sony ss-97 (Late 1970s (approximately 1977-1979))
- Sony ss-999 (Late 1970s (approximately 1977-1979))
- Sony st-j88 (1986-1988)
- Kenwood kl-888s (Late 1970s (approximately 1978-1980))
- Sansui sax-200 (Late 1970s)
- Sansui sax-600 (Late 1970s)
- Sansui sr-222 (1973-1975)