Feature●The PSVANE EL34-AT provides powerful performance for both audio and guitar amplifiers. Its advanced ceramics base and anode coating enhance conductivity and power output, ensuring it can replace standard 6CA7 tubes easily. Enjoy a robust sound with a longer lifespan, suitable for high-powered amplification needs.●The EL34-AT features the Horizon series exclusive HPT-X coating and a base made of a new material.●Under precise voltage and temperature control, each PSVANE vacuum tube must undergo at least 24 hours of burn-in test before leaving the factory, to ensure that every product delivered to you is stable and reliable.●The EL34-AT is known for its powerful output and exceptional low-frequency performance, offering a rich and deep sound quality. It presents a warm and full audio experience, showcasing profound musical expressiveness.●12 months warrantyDescription