*Price is for the pair*
We owned a pair of these excellent power amplifiers and coundn't have been happier. They played in our main rig for a number of years. We highly recommend them! If you want a great story on these amplifiers, call and ask Todd to tell you how we ended up with them in our demo system!
The EAR 509 is a monophonic tube power amplifier designed by Tim de Paravicini, which has been in continuous production for over 30 years13. This iconic 100-watt amplifier was originally created for professional studios but has found popularity in high-end home audio systems due to its exceptional sound quality.
Key features of the EAR 509 include:
A compact, elegant design with a polished chrome finish
Automatic bias system for easy tube replacement and maintenance
Custom-designed transformers for optimal performance
Industrial-grade components for reliability
Option for balanced inputs (XLR) in addition to unbalanced (RCA)
The amplifier uses a unique "balanced bridge mode" output transformer/tube interface circuit and operates without overall feedback. It is known for its clear, transparent sound with firm bass, effortless treble, and high level of detail. The EAR 509 is particularly well-suited for driving electrostatic speakers due to its no-feedback design.
The EAR 509 is a high-performance monoblock amplifier designed for professional use, delivering 100 watts per channel into 4, 8, or 16 ohms. With a transformer secondary that uses no feedback, these amplifiers are stable under any load. Available with either RCA or balanced XLR inputs, the EAR 509 is crafted to studio-grade standards, making it a versatile choice for audiophiles and professionals alike. Its self-biasing technology ensures ease of use, allowing for simple valve replacements when needed. Built to last, the EAR 509 provides powerful, accurate sound reproduction.
100W per channel into 4, 8, or 16 ohms
Available with RCA or true balanced XLR inputs
No feedback on the transformer secondary for stable output
Self-biasing for easy valve replacement
Industrial-grade, high-capacity valves
Proven in studio applications
The EAR 509 amplifiers are built for those who demand nothing less than professional-quality sound. Whether you're an audiophile or a professional sound engineer, these amplifiers offer the power and precision needed for immersive audio experiences. With their robust build and superior stability, you can confidently drive any speakers, delivering rich, clear sound without compromise. Self-biasing technology ensures that you spend more time enjoying your music and less time on maintenance. With the EAR 509, your audio system will reach new heights of performance.
