Here the schematic diagram of 6-10W stereo power audio amplifier:

Component list:

R1, R9 ________ 1K ohm
R2 ____________ 120K ohm
R3, R4 ________ 1K2 ohm
R5, R6 ________ 33 ohm
R7, R8 ________ 1 ohm

IC ____________ TDA2005
Pot ___________ 10K ohm stereo

C1 C2 __________ 2u2/50V
C3 _____________ 10uF/25V
C5, C6, C8 _____ 100uF/25V
C7, C9 _________ 220uF/25V
C12, C13 _______ 2200uF/16V
C4 _____________ 100nF
C10, C11 _______ 100nF

This is a class AB stereo audio power amplifier designed for quality hi-fi applications using a power IC  TDA2005. It is easy to construct and has a minimum of external components. The module has output current protection and thermal protection. This is the data book circuit which produces an excellent sound. The supply voltage required for this kit is 8 – 18V DC at 1 to 2 Amps.

Maximum output power will only be obtained with a power supply of at least 2A at 15V DC, and using 2 ohm speakers (or 2 by 4 ohm speakers in parallel). However approximately 4W per channel can be obtained with only a 15V DC, 1A supply into 4 ohm loads.

The power supply should be well filtered to reduce mains hum, the on board capacitors alone are not adequate for this purpose but are necessary to ensure stability. Extra filtering is unnecessary if operating from a battery.

Download the manual of this stereo amplifier circuit include the schematic diagram, components list and circuit operation HERE

source: kitrus.com