Infinity Servo-Statik 1

It was one of the earliest products of Infinity Systems, the California company co-founded by Arnie Nudell in 1968. The Servo-Statik line debuted in the late 1960s and established the reputation that carried Infinity through the 1970s.

A sensor on the midbass driver monitors its cone motion and feeds that signal back to the amplifier so the driver is constantly corrected, tightening the low-end response. This closed-loop design was unusual for its era and is what gives the speaker its controlled bass rather than a loose, boomy sound.

Yes — the Servo-Statik concept is a direct ancestor of the later Infinity Reference Standard (IRS) systems of the early 1980s, which used similar servo-controlled woofers paired with electrostatic panels. The same designer lineage, centered on Arnie Nudell, runs through both.

It is possible but challenging, since original driver parts have been out of production for decades and surviving units usually need surround, capacitor, or panel work. Vintage-audio specialists who rebuild Infinity and electrostatic speakers of this generation do exist, so sourcing a working pair is realistic with patience and budget.