Zesto Audio Bia 120 Power Amplifier

Auto Bias eliminates the need for manual adjustments or specialized tools to keep your tubes running optimally. It constantly monitors and adjusts the bias current for each tube, ensuring consistent performance and extending tube life without any maintenance on your part.

Yes. The Bia 120 is designed with dedicated 4, 8, and 16 Ohm output taps, allowing you to match the amplifier precisely to your speakers' impedance for the best possible power transfer and sound quality.

By removing negative feedback, the amplifier avoids the phase shifts and compression that can sometimes make music sound 'closed in' or artificial. This results in a more open, dynamic, and natural sound that feels closer to a live performance.

Absolutely. Because the left and right channels are essentially treated as two independent amplifiers within one chassis, it significantly reduces crosstalk. This separation improves stereo imaging, giving you a wider, more precise soundstage.

Yes, it supports both. The XLR inputs are transformer-balanced, which is particularly effective at rejecting noise and interference, making them the preferred choice if your preamp supports balanced outputs.

The unit measures 17 inches wide by 20 inches deep and 10 inches high. Because it weighs 66 pounds and uses vacuum tubes, ensure you place it on a sturdy, well-ventilated surface with plenty of clearance for heat dissipation.