Sony SS-555 (c. 1979)
Overview
The Sony SS-555 is a passive standmount loudspeaker made around 1979. It is a compact bookshelf design with a 2-way, 2-speaker layout and a bass reflex enclosure. Sony sold it as a pair, as part of its high-fidelity line in the late 1970s. The driver materials are unusual, and the SS-555 is rare today, which has drawn the attention of vintage audio enthusiasts.
Specifications
| Model Rating Method | 2-Way, 2-Speaker, Bass Reflex System, Bookshelf Type |
| Unit For low band | 16 cm cone type |
| Unit For High Frequency | 3 cm Balance Drive Type |
| Playback frequency band | 65 Hz to 20 kHz |
| Output sound pressure level | 91dB/W/m |
| Max Input | 40W |
| External dimensions | Width 220x Height 380x Depth 210 mm |
| Weight | 4.5kg |
| Type | Passive |
| Positioning | Standmount |
| Enclosure | Bass Reflex |
Design
The SS-555 uses a bass reflex enclosure. The woofer has a CARBOCON cone. The high-frequency driver uses Sony's original titanium diaphragm in a balance drive configuration. A continuously variable level control adjusts the high-frequency output.
Market
The SS-555 originally sold for ¥27,000 per pair around 1979. It is now considered a rare vintage speaker. A used pair in good condition was listed for $150, and an original service manual has appeared on eBay, which points to some collector interest.
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