Sound Problems in Handsfree!!

[Abilashan Mwg]

Sounds really work good in Speakers but if i plug my handsfree, it doesnt work, sounds are really horrible, it isnt the problem in handsfree, i have tried many handsfrees but the sound is still the same. dont know whether the problem is in the rOm, DSP Manager also gives some problems.

Im using a froyobread rom.

Can any1 help me with it????????