Realistic Optimus 400 (1985–1986)
A 3-way loudspeaker system from Radio Shack's vintage Optimus lineup, noted for extended high-frequency response and a ported cabinet.
Overview
The Realistic Optimus 400 is a 3-way loudspeaker system made by Radio Shack under its Realistic brand during 1985-1986. It was sold as part of the brand's "Classic Models." These are floor-standing speakers built for high-fidelity listening. The cabinet is tuned-port, and there is a leaf super-tweeter said to extend response up to 40,000 Hz, which was a notable figure for consumer speakers of the era.
Specifications
| Type | 3-way loudspeaker system |
| Frequency Response | 40Hz to 40kHz |
| Power Handling | 100W |
| Dimensions (W x H x D) | 362 x 679 x 292 mm (source: radiomuseum.org); 365 x 680 x 292 mm (source: hifi-guide.com) |
Design
The Optimus 400 uses a 3-driver layout with a tuned-port cabinet and a leaf super-tweeter meant to reproduce frequencies up to 40,000 Hz. The 1986 Radio Shack catalog highlights both.
Market
Owners call the Optimus 400 a rare vintage find and often mention the sleek looks and solid sound. Some units may need refoaming over time. Restorers occasionally hunt for replacement parts like the ribbon super-tweeter (JVC HSW1101-01A).
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