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Original 1978 Pioneer 4-page foldout print advertisement featuring the legendary HPM Series loudspeakers, including the HPM-100, HPM-150, HPM-60, and HPM-40. This impressive foldout explains Pioneer High Polymer Molecular (HPM) speaker technology with detailed illustrations and product photography. The two center pages remain uncut, making this an attractive and harder-to-find vintage audio advertising piece.Item DetailsYear: 1978
Brand: Pioneer
Models Featured: HPM-100, HPM-150, HPM-60, HPM-40
Type: Original 4-page foldout magazine advertisement
Center two pages are uncut
Outer two pages are cut
Approximate page size: 8 x 11 inches each
Overall Condition: Good to Better vintage conditionThis listing is for the original vintage advertisement only, not the stereo equipment shown.Ships securely in a protective sleeve with backing boards inside a sturdy flat mailer.Condition: Pre-OwnedCenter two pages are uncut Outer two pages are cut Approximate page size: 8 x 11 inches each Overall Condition: Good to Better vintage condition
