What tubes does the Altec Lansing 1569A - Main use?

The Altec Lansing 1569A - Main uses 2× 12AX7 preamp tubes and 4× 6550 power tubes.

When was the Altec Lansing 1569A - Main produced?

The Altec Lansing 1569A - Main was produced 1958–1970.

Altec Lansing 1569A - Main preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Altec Lansing 1569A is a high-power professional tube amplifier delivering approximately 165 watts, intended for cinema, broadcast, and large-scale sound reinforcement applications. Using 6550 output tubes, it delivers clean, authoritative power with the pristine Altec signature sound. These amplifiers are highly regarded by audiophiles and collectors for their exceptional build quality and sonic performance.

Years produced: 1958–1970
Made in: USA
Wattage: 165W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 4× 6550

Tags: american, vintage.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

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