A bookshelf speaker system from Sony with a 20 cm woofer and a 2.5 cm dome tweeter in a bass reflex design.
Overview
The Sony SS-7050 is a 2-way, 2-speaker bass reflex system built for bookshelf use. It has a 20 cm cone woofer and a 2.5 cm dome tweeter. A continuously variable tweeter level control lets you adjust the tone.
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. The cone paper is new, 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. A notch in the center pole, with thick copper plating or a copper cap, reduces nonlinear distortion. The woofer has 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. The lead wire is high-purity imported copper foil with special resin, which prevents disconnection. The crossover uses a large air-core coil with low DC resistance. Enclosure resonance is minimized through material selection, thickness, and reinforcement design.
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