MHZS CD33F ---Very Bad Sound

Hello guys, I recently bought MHZS CD33F from Ebay and I am very much dissapointed by the sound. It is very bad and dull ... Can you guys help me in modifying this CDP ??? I need your help I want the sound to be like Marantz  

Music111,

The version we have in the past is CD33 only. I don't know what is the difference between ours and your CD33F.

Frankly, when I first receive the CD33, sound is not good at all. Then follow Viewers and many others' opinions, I heavily modified the CD33.

Just before it gone dead, I can say it is much better than many CD players that worths more than HK$ 5K


CAT