DIY kit uses TPA3122D2 Stereo Power Amp IC
Easy to assemble kit using through-hole components
Requires no heatsink when playing music
Small 2" x 3" footprint
Operates on 10-30 VDC
Volume control
RCA input jacks
Screw terminal power and speaker connections
Easy selection of stereo or bridged mono operation
30 watts bridged @ 24v with 8 ohm load

A great little digital audio amplifier, it's super efficient design draws only 30 ma @ 12 volts when idling. The TPA3122D2 ic comes from Texas Instruments and features automatic thermal and short circuit protection. It doesn't require a heatsink when playing music so it will not burn your fingers like analog amplifiers. I've hooked this amp up to 3-way floor speakers with a 10" woofer and was amazed at the volume level, sound quality and punch from one little ic, I know you won't be disappointed.

This new version (revision 2.20 released Oct. 17th 2014) contains on-board jumpers for easy stereo or bridged (mono) configuration.

• 1 - High quality PC Board
• 1 - TPA3122 Class-D Audio Power Amp IC
• 4 - 470ufd Electrolytic Capacitors
• 1 - 10ufd 35v Electrolytic Capacitor
• 2 - 10ufd 10v Ceramic Capacitors
• 2 - 1ufd 50v Ceramic Capacitors
• 2 - 0.68ufd 50v Ceramic Capacitors
• 2 - 0.22ufd 50v Ceramic Capacitors
• 3 - 0.1ufd 50v Ceramic Capacitors

• 3 - 4.7k ¼ Watt Resistors
• 2 - 47k ¼ Watt Resistors
• 1 - 10k Variable Resistor
• 2 - 22uh Inductors
• 1 - LED
• 1 - Spacer for LED
• 3 - 2 Position Terminal Blocks
• 2 - Phono Jacks
• 4 - PCB Standoffs

• Good quality soldering iron 25 – 40 watt
• Solder tip cleaning sponge

• Rosin core or no clean solder
• Diagonal wire cutter