THE ORRONOCO AUDIO DIY

This car amplifier project is using the old car power amplifier I had. I removed all the amplifier components and leave the power supply section with several components such as input connector and potentiometer in place. I am using this power supply board for my testing purpose. Especially when the new idea comes on myself and it is related to the car audio system. Just like this one, I will build a class D car amplifier based on TPA3118 from Texas Instrument.

It is been a long time since I bought this Vifa TC9-FD18-08  here , it is a 8 ohm driver with almost similar specification as the Vifa TG9 except TG9 is 4 ohm. Theoretically, the higher impedance will make the distortion lower and I wish I could hear cleaner sound with this 8 ohm speakers. So here there are, a pair of TC9 speaker driver ready to replace my current Vifa TG9.

I remember when I was receive my first portable cassette player, it is a bulky player, need four AA batteries to operate and a wired earphones. I was 9 years old at that time and the sound quality is not good but I was very happy at that time. Time goes by, today technology are advance now. All gadget are become wireless. The iPhone 7 is the starter for removing the traditional wired earphone jack. It is likely become a new standard that everyone should have their own Bluetooth earphone. On my hands, I bring the most famous brands for the stylish audiophile on the market. It is the Bang & Olufsen H5 Bluetooth earphone to be review.

My parent love to sing. I remembered about 3 years ago they asked me to accompany them to pick the best home karaoke system. I picked the system just like what karaoke commercial did. They sound great and my parent was happy at that time. Until about a month ago, they asked me again to make some improvement on their home karaoke system. They wish to get more power and dynamic to play music even louder.

Lately, I am really enjoying my home audio system. I almost have no time to think about upgrading them. For sure, it is not the best, but I am enjoying listen music through this system very much. On the other hand, I am also quite busy with my work. So many things to do in this early 2017. Across my mind, I want to replace my old watch here  with something more luxury. I look no others than this Orient Mako XL. I could say this watch is like love at the first sight:)

One thing for sure about the superior of using passive preamp is neutrality of the sound itself. The signal are pure and doesn't pass to others components such as capacitor and transistor which can give color to the sound. I will recommend this passive preamp for every audio system then judge how good is the sound.

The only reason why I am building this DAC is because it is simple without additional op-amp required for the output.  I should admit at the first time, I not sure the sound quality of this TDA1543. I am afraid the sound are far from my expectation. But my thought is changed after I read the review from the 47 labs 4515 DAC online. They using the similar IC and the review is very promising.