• Please pay attention before buying!!Nice sound but LOWER POWER.We received feedback from many buyers, reflecting that Reisong A10 Amp have not enough power. Please confirm that your speaker is a bookshelf speakers with a sensitivity 89db or more. We don't think Reisong A10 work well with a floorstanding Speaker or the low sensitivity speakers.
• Point to Point hand welding, preferred audiophiles, output transformer switch to the 76x40 higher end output transformer.
• If there is no sound from the machine after waiting for a few minutes, Please make sure the power is connected properly. And try pressing the Black Circle Button on the back of the machine (for switching between AUX and CD modes)
• Tube EL34 x 2,6N2J x 2,5Z4PJ x 1
• Reisong A10 Amp come with tubes protective cover and a circuit diagram.