8403A Digital Amplifier Board with Potentiometer,2.5-5V Output 3W+3W Module 2pcs

Key Features

• [FEATURE] D class power amplifier board high 2.5 ~ 5 v, can be usb(laptop) power supply; Power efficiency for D class about 90% (for A or B class about 30%).
• [PARAMETER] IC Model 8403A; Limited operating voltage 5.5V; Maximum output power adjustable 3W + 3W (left and right channel); Overall Size30 x 34 x 14 mm / 1.18 x 1.34 x 0.55 inch (L*W*H).
• [FIT] For speaker's impedance 4 - 8 Ohm (refer to 4 Ohm); For speaker's power 2 - 8 W.
• [NOTE] Speakers should be loaded before power supplied.The "-" output end of left and right channel can not be connected together, or the IC will be burnt.
• [APPLICATION] widely used in diy project.

Product Description

Function:D class power amplifier board high 2.5-5V, can be usb(laptop) power supply.Application:widely used in diy project.Note:Speakers should be loaded before power supplied.The "-" output end of left and right channel can not be connected together, or the IC will be burnt.Specification:IC Model: 8403ARated working voltage: 2.5-5V, limited operating voltage 5.5VMaximum output power: adjustable 3W + 3W (left and right channel)For speaker's impedance: 4 - 8 Ohm (refer to 4 Ohm)For speaker's power: 2 - 8 WPower efficiency: for D class about 90% (for A or B class about 30%)Panel Size: 21.5 x 18 mm / 0.85 x 0.71 inch(L*W)Potentiometer Size: 30 x 12 x 12 mm / 1.18 x 0.47 x 0.47 inch (L*W*H)Overall Size:30 x 34 x 14 mm / 1.18 x 1.34 x 0.55 inch (L*W*H)Package Content:2 x Digital Amplifier Board