Electronic module Tda7297 Amplifier Board Module Amplifier Board Dual Channel Noise-Free 12V Finished Product Amplifier Board FE-9720B

1. Volume: 53 X48x42mm (Length X Width X Height, Excluding Potentiometer Handle), Ultra-Small Size Suitable for Any Space.

Voltage: AC Or DC Current 9-15v, Recommend DC Voltage 12V, Current above 2A

Power: 15W +15W

Output Impedance: 4-8 Ohm

2. Advantages of This Board: No Current Impact Sound at Startup, High Fidelity and No Static Noise! Sound Quality. Good -- the Treble Is Delicate, Soft, Transparent, without Obvious Harsh Ears; the Bass Is Strong, Full, Powerful, and Freely Retractable .. Nearly a Small Number of Customers Reported That This Board Is a Little Noisy, most of Them Are Because the Power Supply Problem Has Not Been Solved. After Testing, There Is No Noise in Supplying Power with Batteries above 12v2a Or Transformers above 12v30w. If Switching Power Supply Or Other Variable Power Supply Is Used to Supply Power, Low Noise May Occur Due to Poor Linearity.