This part is a kind of semiconductor called MISTRAL2500.

Function of this product has Stereo Power Amplifier.

Manufacturers : ALTO

Image and pinout :

Some of the text within the PDF file :

w w MISTRAL2500 a D . w S a t e e h U 4 t m o .c User's Manual STEREO POWER AMPLIFIER w w w t a .D 4000 S a e h U 4 t e .c m o LTO www.altoproaudio.com Version 1.0 DEC 2003 English w w w .D a S a t e e h U 4 t m o .c R SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. Operating Conditions This apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on this apparatus. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water. Install in accordance with the manufacturer's instructi [ ... ]

MISTRAL2500 PDF Datasheet Download