Realistic Optimus 400 (1985–1986)
A 3-way loudspeaker system from Radio Shack’s vintage Optimus lineup, noted for extended high-frequency response and ported cabinet design.
Overview
The Realistic Optimus 400 is a 3-way loudspeaker system produced by Radio Shack under its Realistic brand during 1985–1986. Marketed as part of the brand's "Classic Models," these floor-standing speakers were designed for high-fidelity audio reproduction. They feature a tuned-port cabinet and include a leaf super-tweeter said to extend response up to 40,000 Hz, a notable trait 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 configuration with a tuned-port cabinet and a leaf super-tweeter designed to reproduce frequencies up to 40,000 Hz, as highlighted in the 1986 Radio Shack catalog.
Market
Owners describe the Optimus 400 as a rare vintage audio find, often noting their sleek appearance and solid sound. Some units may require refoaming over time, and replacement parts like the ribbon super-tweeter (JVC HSW1101-01A) are occasionally sought by restorers.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.