Well done tuyen. I have tried this, but i keep away from electrolytic's if possible, as you know sometimes they must be used. I hope god does not strike me down saying this. I even have 2 electrolytic caps in each my 250 Globe and PX4 amplifiers. They add a special flavour i can not replace. 4 pole Jensons, but they must be connected correctly and that is not as easy as it seems.