ADC 303B (1972)
Not much is documented about the ADC 303B. Almost everything on record comes from one period review. High Fidelity (March 1972, p.44) presented the 303B as a modification of ADC's existing 303 system. It was a compact full-range speaker in a 21½ by 11¾ by 10 inch enclosure, priced at $80. In pulse tests at low and high frequencies, the reviewer found excellent transient response. The only blemish was a slight ringing at 3,000 Hz, which added a perceptible brightness. The manufacturer was Audio Dynamics Corporation of New Milford, Connecticut.
No further specifications, production years, or market context have turned up in the sources reviewed. The 303B appears to have been a modest, briefly documented update of the 303, and it remains one of ADC's more obscure loudspeaker entries.
Known specifications (from High Fidelity, March 1972):
- Type: compact full-range speaker system
- Dimensions: 21½ × 11¾ × 10 inches
- Original price: $80
- Manufacturer: Audio Dynamics Corporation, New Milford, Connecticut
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