The build quality and component quality of the amplifier are satisfactory, with fast delivery received within a week. The product features excellent circuit design, and the transformer used is powerful and heavy-duty. We would like to express our gratitude to customer service representative Ms. Merry for her support. We recommend purchasing this amplifier as it offers great value for money. However, we noticed that the amplifier’s PCB support spacers are made of PVC material; we suggest using brass instead, as it would facilitate repairs if needed. Overall, everything else is perfect. 

Excellent build quality, crisp sound. Especially we appreciate customer service. very prompt service, and professional communications.