SB Live Value (CT-4670) : one channel crushed

hi there...

there was a litle electronic short-circuit in my radio connected to
sb live, and front-left channel has been crushed. voice is playing but
if there is any high level sound then this channel is cracking. all
other channels are ok. it looks like a simple problem. any one knows
which part should i check to repair this problem? i can use soldering
iron and i can replace most of parts, except emu10k1 and this small
SMD chips ;-) any suggestions for me?

psychik