Realistic Optimus 5B (1992–1994)
A 3-way passive loudspeaker system made in Japan for Radio Shack and sold under the Realistic brand in the early 1990s.
Overview
The Realistic Optimus 5B is a 3-way loudspeaker system made in Japan for Radio Shack/Tandy Corporation. It was sold under the Realistic brand. The enclosure is sealed (acoustic suspension), and the speaker is a standmount built for hi-fi use. Users noted that the design is close to the KLH-5. It was built from 1992 until 1994 and came in real walnut veneer or faux wood grain finishes. Official documentation is thin. Surviving units have been described as great sounding, and some owners regret selling theirs.
Specifications
| Product type | 3-Way Loudspeaker System |
| Product type | Passive loudspeaker |
| Enclosure type | Sealed |
| Enclosure type | Acoustic Suspension |
| Positioning | Standmount |
| Way system | 3 |
| Nominal Impedance | 8 Ohm |
| Frequency Response | 20 - 20000 Hz |
| Dimensions (W x H x D) | 35.5 x 63.5 x 29.2 cm |
| Cabinet material | Real Walnut Veneer |
Context
The Optimus 5B belonged to Realistic's Optimus line, which offered improved styling and performance over earlier models. It was made in Japan for RadioShack/Tandy and has been described as a direct copy of the KLH-5 speaker design. It isn't officially documented as part of a numbered series, but it shares naming with other models like the Optimus 5 and Optimus 7.
Market
The Optimus 5B turns up on eBay and Reverb, often listed as "VTG" or "estate fresh." Original price was approximately 300 DM in Germany. Owners comment on strong sound quality and lasting performance, and some say modern speakers have improved on these only marginally.
eBay Listings
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