Akitika makes complete stereo preamp and power amp kits. The GT-102 Audio Power Amplifier kit delivers more than 50 Watts per channel and boasts an amazing 136 dB signal to noise ratio. The PR-101 Stereo Preamplifier is a preamplifier kit with a remote control that you can customize. Order the kits here, download the assembly manuals, and read about how easy it is to assemble and how well it performs