UREI 565T
Little is documented about the UREI 565T. The most concrete record found so far is a single period directory listing: Modern Recording (August 1985, p.46) described the 565T as the "Little Piper" filter set, priced at $1,196, shown under a JBL Inc. header beside UREI's 539 room-equalization filter set and 537 third-octave graphic EQ.
That same listing supplies the essential specs:
- Two continuously variable end filters, covering 20 Hz – 20 kHz
- Two continuously variable notch filters, covering 20 Hz – 20 kHz
Beyond that, the record is silent — no production years, no manual, no user reports have surfaced. The "Little Piper" appears in a professional recording-equipment directory and then vanishes from the paper trail. It was evidently a studio filter set in UREI's line, but the documentation essentially ends there.
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