Description: It adopts the special preamplifier chip TA7668(used) for magnetic head, which is dedicated for magnetic head amplification of old tape drive deck, with JRC2150BBE audio processing chip, which effectively enhances high and low sounds and improves audio clarity. The power supply has a rectifier circuit, which can be AC input or DC input. Working Voltage: AC 8V-16V or DC 12V-22V Board Size: 75x50x23mm (L x W x H) Material: PCandMetal Color as shown Notice: Do not use switching power supply for power supply, it may cause interference. Package Contents: 1pcs x TA7668 Preamplifier Board 2pcs x Wires Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store