A Simple DIY Amplifier Project For Cheap

The story of this amplifier built is came 2 month ago when my friend asked me if I could build small amplifier that sound good enough to drive his 2 way bookshelf speakers.

He just moved to the new house and the living room design is now more minimalist. Previously those bookshelf speakers are connected to the home audio receiver, so he can watching TV, playing games, and listen to the music with the same setups.

In the new house, that home receiver cannot fit to the new cabinet. He replaced it with only using a Yamaha sound bar. It is sound good for movies and playing games, but not for music. That is why, he contacting me to build a small affordable good sounding amplifier that can fit inside his new cabinet so He can still using the bookshelf speaker just to listen to the music only.

Since this build is simple, I think this is a good share for everyone who want to build an amplifier.

Direct Drive DSD Files Without Any DAC

It is quite some time that one forum on the internet was shocked with someone amplify a raw DSD digital signal without any DAC, and it works!

This issue also takes my curiosity and I want to try how could this possibly done.

I am searching more information and this is quite makes sense since the DSD file is basically a pulse density modulation and it is looks like an analog signal show on the oscilloscope. This is called data stream that very fast data generate and creating just like the analog signal.

It is completely different with common pulse code modulation or PCM in most music files, which they are basically codes that need to translate first before convert to the analog by using a DAC.

So in this post, I will try by myself this digital DSD files amplify directly to analog.