Zesto Audio Eros 300 mono's

Yeah man! We don’t beat around the bush. This is good! This is delicious! In need of an upgrade? Bring it on!

The Zesto Audio Eros 300 monoblocks are designed to provide a powerful and musical listening experience. With a push-pull and ultra-linear circuit design, they deliver 150 watts per channel in pure Class A. The amplifiers use six KT88 tubes and two 12AU7 tubes, contributing to their dynamic performance. The auto-bias function makes them easy to use, with no manual adjustments required. The Eros 300 offers both balanced XLR and single-ended inputs, making them flexible for use in various audio systems. With a frequency range of 20Hz to 50kHz and a total harmonic distortion of about 0.43% at 1 watt output into 8 Ohms, these amplifiers strive for clear and accurate sound reproduction. The negative feedback-free design contributes to a natural and open sound. Weighing 64 pounds each and measuring 17″ wide, 20″ deep and 10″ high, they are ruggedly built. The Eros 300 features both 4 and 8 Ohm output stages, ensuring efficient transfer of power to speakers. The combination of high-quality components and thoughtful design makes the Zesto Audio Eros 300 monoblocks an interesting option for tube amplifier enthusiasts.

Zesto Audio was founded in 2010 by George and Carolyn Counnas. The brand is based in Thousand Oaks, California, United States. George Counnas has a background in music, electronics and product development, having worked as a studio engineer and in audio equipment development, among other roles. Zesto Audio’s products are designed with vacuum tube technology and are handcrafted in the United States. Its first product, the Andros PS1 phono stage, was introduced in 2011. Since then, the company has expanded its range to include phono stages, preamplifiers and power amplifiers. Each product is individually tested and designed with attention to internal wiring and component selection. Carolyn Counnas is responsible for operations and logistics within the company.