BETA
RADAR is in beta — expect errors. Accuracy and coverage improvements are shipping daily.
LIVE
Waiting for new listings…
0 other audiophiles online

Our Thoughts RADAR AI

Compared with the usual coffee-and-cables budget buys, US$20 looks like a strong deal here: it sits below the 25th percentile of US$25 and well under the median US$30 for recent comparable listings. That puts it in bargain territory rather than merely “fair,” especially for a small accessory package where every usable original piece adds value.

What makes this worthwhile is simple: these kinds of factory accessories are often the difference between a complete, satisfying setup and a cobbled-together one. If the pieces are clean, intact, and actually the right match for the component, this is the sort of low-risk add-on that can save time and money versus piecing things together later.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Optimus

Optimus is best known as a RadioShack private-label audio brand rather than an independent hi-fi manufacturer. The name traces back to RadioShack’s in-house branding, with “Optimus” used on some products from the late 1960s and more broadly on audio gear in the 1980s and 1990s. It does not have a clearly identifiable standalone founder in the way a dedicated hi-fi brand would; its heritage is tied to the RadioShack retail chain in the United States.

The line covered a broad range of consumer electronics, including stereo receivers, amplifiers, speakers, cassette decks, turntables, and later some home-theater and portable audio products. Depending on the era, many Optimus components were sourced from overseas OEM manufacturers, especially in Asia, and sold through RadioShack’s stores as house-brand alternatives to mainstream consumer audio lines.

In the market, Optimus sits firmly in the mass-market and mid-fi category rather than the high-end segment. Today it is mostly remembered by vintage-audio collectors and RadioShack enthusiasts, with certain receivers and speakers drawing interest for their retro appeal and occasional value. It is not generally regarded as a boutique or audiophile-first brand, but some models remain noteworthy for solid build and nostalgic charm.

See all Optimus listings on RADAR.

More SA-155 listings