THE ORRONOCO AUDIO DIY

Lately I am using this tiny, non audiophile device as my primary source in car audio. As an excuse, my current car audio setup is not an audiophile either. It is just a Sony CDX-CA900 with the OEM speakers. I know no one loves Bluetooth in term of sound quality, but for friendly use and neat installation especially in car, this Bluetooth is a great solution.

Continuing from my post  here , this Sony HU CDX CA900 make me surprised how good is the sound quality compares to others favorite brand such as Pioneer. As usual, I always want to make a simple upgrade especially on the signal line capacitor. This parts will give more impact in upgrade sound quality. Now  is time to dismantle this head unit and no worries about this brand new head unit with the seal on it will be break by myself for this upgrade purpose.

Last week, as usual in my daily working days, I am stop by to my favorite audio parts store, just for looking around. There are lots capacitor lining up in the shelves and I just wondering that I has one more things to do in my CD Player here . So I bought some to upgrade my CD player.

Adcom GFA-555 II is one of good amplifier you can buy. Just like many others amplifier designed by Nelson Pass, this amp deliver high power output on class A and the sound is clean, natural, yet dynamic. This amp is built around 90's and you still can find them in mint condition. The services that you should do at the first place is only adjusting the bias. We want this amp running optimal while still maintaining the heat on proper level.

Continuing from the  part 1 , now this amplifier will be assembly with the boards and rewiring the power supply cables. Let's take a look on the progress.

My friend ask me to restore his Quad 405 amplifier and make some modification to improve the sound. This amplifier is the early generation Qad 405 built in 1976, I am not even born yet at that year. So let's begin this project.

Meridian is one of the best audio company and very famous in 90's. They build in the USA and for sure the voltage input required is 110 volt. Unfortunately in my country, which is provide the 220 volt for the mains is not suitable for this Meridian. Using an external step down transformer gives me  worries of miss-plugging the AC input. It even can degrading the sound quality by using low quality step-down transformer. So I will convert this Meridian to accept 220 volt instead. And of course with high quality transformer.

Last week I do review  here  this finest amplifier and when there is a chance for me to install in my car. I can't wait any longer to experience the sound quaity from this mighty amplifier.

From my previous  post  about digging out my storage room, I found an interesting piece of junk. This is an Alpine car power amplifier model 3501. As I remember, I get this amplifier from 1990 Toyota Crown OEM audio. It is a premium car and the audio system that they are using is Alpine double din head unit, which considerably rare. Then from the head unit connect to pair of Alpine 3501 external amplifier. This amplifier is already broken when I taken out from the car and I have planned to restore it long time ago.