Last week, I just bought the better quality of the capacitor to modiy my Sonic Gear A6. I bought Nippon Chemi-con KMH 400V 390uF, Nichicon Gold Tune 71V 10,000uF, SONY 71V 10,000uF, Rubycon USG 450V 330uF.
I just swap the 35V 4700uF cap to Nichicon Gold Tune, but you might wonder how to fit in...I connected with the copper wire and solder at PCB. I know it may degrade the quality if connected in this way, but it is no choice, the capacitor is too big.
After changing the Nichicon, then I made change the capacitor which near to the vacuum tube. Actually I wanted to change the Nippon Chemi-con since I get it early than Rubycon. But, I just worry it will explode if I replace with lower voltage compare with original rating. Then I just buy another Rubycon USG 450V 330uF, which is same voltage rating but higher capacity.
When I de-soldered the original capacitor, I notice that only one side is fit when I insert the Rubycon capacitor, the another one need solder with copper wire. I guess if you replace with same capacitor value, it should be fine to replace it. No need connect extra copper wire. The dimesion of the hole is the same.
After some how, I tried to open the speaker box. This time I manage to open it. First, you have to remove the net...then you will see there are some screws there. After removed the screw, you can take out the plastic. But be careful because the plastic migth crack easily.
Once the plastic is removed, you can see the speaker already. There is one crossover inside the speaker box. It is for filter the audio signal to high frequency and low frequency. You can see there are some component such as coil, capacitor and resistor.
Next upgrade is to change the crossover's capacitor. Anyone can share with me what type of capacitor to replace it?
You may see how inside it look like at my previous blog, pls click the link below.
~Nippon Chemi-con KMH 400V 390uF~
~SONY 71V 10,000uF~
~ Nichicon Gold Tune 71V 12,000uF~
~Rubycon USG 450V 330uF~
~Done~ 
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