EPI E-70
Little is documented about the EPI E-70. The Archive has found no review, service sheet, or technical specification that uses the exact "E-70" designation. What survives from the period is advertising for the naming family it belongs to, and even there the E-70 itself doesn't appear by name.
In 1978, EPI ran an ad for the LS-70 car speaker, comparing it with the EPI 70 home speaker. HI-Fi-Stereo-Buyers (September 1978, p.27) carried the comparison. The home EPI 70 used a 6-inch woofer and a 1-inch air-spring tweeter. Frequency response was rated at 60-20,000 Hz, crossover at 1800 Hz, and dispersion was described as nearly hemispherical through the musical range. The ad's pitch was that the LS-70 car version performed like that home speaker while handling over 60 watts per channel, where most competing car speakers failed at far lower power. Eight years later, EPI's advertising in Audio (January 1986, p.46) was promoting the T/E 70 and T/E 100 as the next step for the line. It claimed the new Time/Energy driver technology had raised the speakers to a new level of performance and that the EPI 100 had been the comparison standard for over a decade.
Where the E-70 fits against those models is not known. It could be a variant designation, an earlier or later version of the EPI 70, or a distinct model.
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No exact EPI E-70 listings are live right now — these searches show current EPI and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
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