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This is a strong deal at USD 155. It sits below the USD 140 25th-percentile benchmark only by a small margin? Actually, it is slightly above that threshold, but remains well below the USD 290 median and far below the USD 595 75th percentile—an attractive ask for a working example.
The CTs 600 is a capable two-channel installation amplifier, offering roughly 300 watts per channel with balanced inputs, flexible low-impedance and constant-voltage operation, and robust protection circuitry. Crown’s cooling and overload safeguards make it a sensible workhorse for distributed audio, studio utility duty, or a demanding passive system. At this price, verify that both channels operate quietly, the fan is healthy, and the connectors and output mode switches are intact; if so, this looks like a worthwhile buy rather than merely a cheap one.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Crown Audio traces its origins to 1947 in Elkhart, Indiana, where minister and radio enthusiast Clarence C. Moore, alongside his wife Ruby, founded the International Radio and Electronics Corporation (IREC) in a converted chicken coop. Initially focused on rugged open-reel tape recorders for missionaries in remote regions, the company pioneered innovations like the world's first tape recorder with a built-in power amplifier in 1949. Ruby's suggestion in the 1960s led to the adoption of the Crown name, inspired by the crown emblems on their 'Royal' and 'Imperial' models, with the corporation officially renaming to Crown International, Inc. in 1975.
The brand shifted from tape recorders and compact loudspeakers in the 1950s to standalone tube power amplifiers by 1959, cementing its expertise in professional amplification. Crown became renowned for groundbreaking products like the DC300 in 1968—the first high-power solid-state amplifier—and the M600/M2000 in 1972, featuring patented technologies such as the ground-bridge circuit. Today, under Harman International since its 2000 acquisition, Crown specializes in high-output amplifiers for touring rigs, cinema venues, installed systems, portable PA, and commercial audio, prioritizing reliability and innovation over consumer categories like speakers, turntables, DACs, headphones, or cables.
Crown holds a commanding position as a pro-audio powerhouse, trusted by industry leaders for its durable, high-performance amplifiers that define live sound and installation standards. Far from high-end audiophile or vintage collector fare, it dominates the professional market with over 75 years of technical milestones, though recent production shifts to Mexico reflect ongoing evolution. For the discerning hi-fi buyer eyeing pro-grade power, Crown delivers uncompromised authority.
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