11

About the 11

The Coda Model 11 is a vintage solid-state stereo power amplifier using Coda's Precision Bias class-A/AB topology, often described as a "class-A" design because it maintains class-A operation over a substantial portion of its output range. It delivers around 100 watts per channel into 8 ohms, and can be bridged for mono operation to provide significantly higher power output (commonly cited at about 400 W into 8 ohms), making it suitable for demanding loudspeakers and larger rooms. The amplifier is known for its very heavy, overbuilt construction (around 80-85 lb), dual-mono architecture, and large toroidal transformers and capacitor banks, all aimed at high current delivery and stability into low-impedance or difficult speaker loads. Contemporary reviews and user reports consistently describe the Model 11 as offering neutral, dynamic, and controlled sound, with strong bass authority and clean, low-distortion performance, fitting Coda's broader design philosophy of wide-bandwidth circuitry, robust protection schemes, and long-term reliability. As an early-1990s design, the Model 11 is now considered a discontinued legacy model but remains sought after on the used market by enthusiasts who value its combination of build quality, reliability, and transparent sound.