Zesto Audio - Bia 200 Select Class A Stereo Power Amp

Zesto Audio Bia 200 Select - The Absolute Magic of Class A Tubes

If you are seeking the ultimate holographic soundstage, boundless realism, and the incomparable warmth that only flagship tubes can provide, the Zesto Audio Bia 200 Select is the end of your journey.

This striking stereo power amplifier is not just a sonic masterpiece but also an industrial design jewel (featuring Zesto's signature curvaceous styling) that captivates the eye.At its core beats a pure Class A

circuit, ready to deliver a staggering—for a tube amplifier—100 Watts per channel. The word "Select" in its name conceals its greatest advantage: It features an innovative 3-position switch (with an advanced

Auto-Bias system) that allows you to choose between KT88, KT120, or KT150 output tubes. With a simple click, you can tailor the sonic signature of your system, effectively offering three different amplifiers in

one chassis!

All this is achieved with Zero Negative Feedback, ensuring that the music flows effortlessly, with lightning-fast dynamics and perfectly natural tonal colors. With its Dual Mono power supply design, the Bia 200 Select

offers surgical channel separation and a vast, three-dimensional soundstage.

Key Features:

• ✔️ Pure Class A: 100 Watts of boundless, warm tube power that easily controls most High-End loudspeakers.

• ✔️ Tube Select Switch: Tailor your sound by easily selecting your preferred tube type (KT88, KT120, KT150) with the safety of full Auto-Bias.

• ✔️ Zero Negative Feedback: A feedback-free design for stunning musicality and a lifelike stereo image.

• ✔️ Dual Mono Power Supply: Independent power supplies for the left and right channels, offering incomparable dynamic range and silence.

⚙️ Technical Specifications:

• Amplifier Type: Tube Stereo Power Amplifier, Pure Class A (Push-Pull).

• Power Output: 100 Watts per channel.

• Output Tubes: 4x KT150 (Factory matched). Supports KT88 and KT120 via the selector switch.

• Input/Driver Tubes: 4x ECC82 (12AU7).

• Bias Setting: Fully Automatic (Auto-Bias) – No multimeter adjustments required.

• Circuit Design: Zero Negative Feedback.

• Output Connections: Independent speaker taps for 4, 8, and 16 Ohms.

• Inputs: 1x pair Balanced (XLR), 1x pair Single-Ended (RCA).

• Origin: 100% Handbuilt in the USA.