Focusrite ISA 115 (dates unknown)
Little is documented about the Focusrite ISA 115. The clearest trace in the period record is a classified ad in Sound-on-Sound UK (January 1996, p.192) offering an ISA115 for £1,900. That's a used-market price, which suggests a professional-grade unit, though the listing gives no specifications.
Earlier Focusrite material is suggestive but can't be tied to this model. Focusrite advertising in Mix-Magazine (August 1987, p.23) carried endorsements from Kevin Mills of Larrabee Sound and Robert A. Tis of Electric Lady Studios. They vouched for the gear's quiet, transparent character and musicality. A Mix-Magazine equipment directory (October 1987, p.261) lists Focusrite U.S. Ltd. in Wheaton, Illinois. It gives these figures - 50-ohm input impedance, recessed front-panel gain control from -70 dB to +14 dB, separate power supply, short-circuit-proof outputs, priced at $820. No model name is attached to those numbers, and there is no evidence they describe the 115.
Beyond that one 1996 sighting, the record is silent. No production dates, full specifications or design details for the ISA 115 have surfaced. Whether it relates to the similarly named ISA 115-H is also undetermined.
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