Harman/kardon Citation X-I

Overview

The Harman Kardon Citation X-I is a substantial stereo power amplifier introduced in the early 1980s, when the Citation name still represented the company’s most ambitious separate components. Rated at 150 watts per channel into 8 ohms, it was built for serious two-channel systems rather than as a companion piece for a mass-market receiver.

Its published specifications are striking even decades later: frequency response extending from 0.1 Hz to 180 kHz, total harmonic distortion of 0.01%, a damping factor of 130, and a 118 dB signal-to-noise ratio. Those figures reflect Harman Kardon’s long-running emphasis on wide-bandwidth amplifier design and clean transient response.

Why This Model Matters

The X-I arrived in 1983 as part of a later generation of Citation electronics. It does not have the tube-era mythology of the earliest Citation models, but it remains one of the more unusual and imposing Harman Kardon power amplifiers of its period. At roughly 25 kilograms, it has the physical scale expected of a genuinely high-current design.

For enthusiasts, its appeal lies in the combination of restrained black styling, generous power, and engineering that prioritizes bandwidth and low noise rather than decorative features. It is also far less commonly encountered than many Japanese power amplifiers from the same era.

Highlights

• 150 watts per channel into 8 ohms
• Wide 0.1 Hz–180 kHz frequency response
• 0.01% rated total harmonic distortion
• High 118 dB signal-to-noise ratio
• Heavy-duty construction weighing approximately 25 kg
• Part of Harman Kardon’s respected Citation series

Who It’s For

The Citation X-I suits listeners building a powerful vintage separates system and collectors interested in the less familiar chapters of Harman Kardon’s high-end history. Its combination of rarity, power, and unusually wide-bandwidth design makes it more than just another black-box amplifier from the 1980s.