Athearn HO scale Southern Pacific MT-4 steam locomotive

I looks good out of the box, but I found the little star decals on the axels already peeling off. the sound I have adjusted and adjusted it is weak. I just got my new bli mikado and it puts the sound to shame on the athearn.

LOOKS GOOD,SPEED CONTROL GOOD IN DCC,HOWEVER SOUND VOLUME IS WEAK EVEN WITH ALL CV VOLUMES SET AT MAX.