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Seller's Description

Audio Definition Duet Floorstanding Loudspeakers In these troubled times, would you prefer to buy Australian? Looking for great value? Then, you may wish to consider these:   Audio Definition Duet speakers I understand they have Seas 6" bass drivers x 2 and a Seas Neodinium Tweeter (bullet) horn loaded. Front-ported, bass reflex. Power handling: 150w RMS; sensitivity: 90dB; nominal impedance: 4 ohm: frequency response: 45-20000 (+-3dB/Hz) Dimensions: 1260 x 220 x 270 (hwd); weight: 25kg ea   Some additional information on the brand (including the Duets):    Condition: Very Good Payment Method:

Our Thoughts RADAR AI

Seas Definition Duet speakers, with their 2.5-way MTM design and Excel drivers, typically trade used in Australia for AUD $400-600 in good shape on sites like StereoNET, depending on finish and age—rarer now since discontinued around 2015. At AUD $325, this listing looks like a solid bargain if truly functional, undercutting fair market by 20-30%; lowballs have flooded the used scene lately, so snag it quick if it checks out.

Buyers, verify driver integrity first—Excel woofers can foam-surround degrade after 10+ years, causing distortion; test for tears or buzzing. Confirm original grilles, spikes, and manual are included, and ask for close-up photos of cabinets for veneer cracks or water damage. Power up with your amp to check impedance matching and bass response.

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

About Seas

SEAS (Scandinavian Electro Acoustic Systems) is a Norwegian manufacturer with deep roots in European audio engineering. Founded in 1950 as a spin-off from the radio manufacturers Radionette and Tandberg, the company emerged from Jan Wessel's vision to produce loudspeaker drivers for his own radio sets. Designer C.C. Nørgaard Madsen joined as co-founder, bringing expertise that would establish SEAS as a leader in driver innovation. The company's heritage traces back further to the late 1920s, when Norwegian engineers at the Institute of Technology designed the first Norwegian electrodynamic loudspeaker drivers—a lineage SEAS has maintained for over seven decades.

SEAS specializes exclusively in loudspeaker drivers and finished loudspeakers, positioning itself as a pure-play audio component manufacturer rather than a diversified electronics brand. The company produces high-fidelity drivers across multiple ranges, including their Prestige, Excel, and Exotic product lines. Known for tailoring solutions to specific customer demands, SEAS has evolved from supplying standard drivers for consumer radio and television sets to crafting sophisticated components for the contemporary hi-fi market. The company has also expanded into the AV segment since 2011, establishing itself as an independent supplier of quality loudspeakers.

SEAS occupies a respected position in the mid-to-high-end audio market, valued for its exceptional quality-to-price ratio and engineering excellence. Based south of Oslo, the company maintains manufacturing capabilities and rigorous testing facilities, including an anechoic chamber. Among discerning hi-fi enthusiasts and professional integrators, SEAS commands recognition as a serious European driver manufacturer—neither mass-market nor ultra-premium, but rather a specialist brand where engineering integrity and acoustic performance drive product development.

See all Seas listings on RADAR.

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