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Thread Starter 

Hi everyone

I'm considering woo audio WA5.Without upgrading,it will cost me $3150,but the parts upgrade(not the tube upgrade)will cost another $1300,so could someone tell me is it important to upgrade?Are there some big difference between upgraded and ont upgraded?I don't have too much money,so I don't want to waste my money.Please show me your suggistions.Thank you very much!