Kora CSA 2120 Class A Stereo Amplifier

The Kora CSA 2120 is a high-performance stereo amplifier designed for pure Class A operation. Combining Kora’s exclusive SquareTube® technology with a robust, highly filtered linear power supply, it delivers musicality, precision, and effortless control across all frequencies. With smart ON/OFF and adaptive current management, the CSA 2120 ensures peak performance while minimizing unnecessary consumption. Crafted in Toulouse, France, its elegant mineral grey chassis embodies both power and refinement.

Key Features

• Pure Class A Stereo Power – 2 x 120 W / 8 Ω for powerful, distortion-free performance.
• SquareTube® Technology – Ensures natural dynamics, precision, and musical detail.
• Massive Filtering – 560,000 µF for superior stability and headroom.
• Smart ON/OFF Management – Automatically powers on with signal detection, off when idle.
• Adaptive Current Control – Switches between high and low current depending on loudspeaker demand.
• Premium Build Quality – Aluminium and steel construction with mineral grey finish.

Square Tube Technology

The CSA2120 is built around Kora’s proprietary Square Tube Technology, a hybrid circuit that blends tube harmonic finesse with the speed and stability of solid-state power. In this larger chassis, the design delivers commanding headroom and dynamic range, while retaining the fluid, lifelike presentation that makes music feel immediate and human. It is an amplifier made to fill serious systems with presence and emotion. Learn more about Square Tube Technology.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications