Altec 1569A (c. 1957–58)
Not much is documented about the Altec 1569A. Most of what survives is period advertising, not reviews or manuals. Altec's own ads presented the 1568A and 1569A together as new power amplifiers. The pair appears in Audio (December 1957, p.73) and again in Audio (June 1958, p.49), so the 1569A was on sale by late 1957.
Within that line, the 1569A was the bigger amplifier. Retrospective coverage of the 1568/1569/1570 family describes the 1568A as the low-power version - 40 watts at $195 - which puts the 1569A a step above it. A 2002 classified listing describes the 1569A as a 60-watt monoblock with four EL34 output tubes, offered at $400 for a pair. Past that, the record is thin. No original specification sheet, manual, or period bench test of the 1569A has surfaced in this archive's research, so frequency response, input sensitivity, and dimensions remain undocumented.
Known facts:
- Vacuum-tube mono power amplifier
- Nominal output around 60 W, per a 2002 classified listing
- Four EL34 output tubes
- Sibling of the 40 W Altec 1568A; part of the 1568/1569/1570 amplifier family
- Advertised as new in Audio in December 1957 and June 1958
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