JBL C58 Delphi
The record on the JBL C58 Delphi is thin, even by the standards of this archive. No manufacturer documentation, no catalog listings and no historical context have turned up in the available research. What little exists comes from a single period review.
Audio (August 1964, p.82) described the C58 Delphi as a complete system consisting of a control center and separate enclosures, with the control center offering volume, balance, bass and treble controls (each with 15 dB of cut or boost), mono/stereo mode selection, and phono or auxiliary program source inputs. The same review gave dimensions: the control center measured 4"H x 18"W x 14"D, and the enclosures 8"H x 14"W x 8½"D, with a total shipping weight of 50 lbs. The finish was oiled walnut.
Beyond that listing, almost nothing is documented. The available material does not say whether the C58 Delphi was a standalone integrated system or part of a broader JBL home line in the mid-1960s. No driver complement, amplifier rating, impedance, frequency response or original price has turned up. If you own a C58 Delphi or have seen one in period advertising, the archive would welcome the details.
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