Quote:
for android device , i like rock box . it rules but is complicated how good is viper4 .
Is your player an iDevice or a rooted android phone by any chance? You could get the UE600 and accudio for iDevices and have it simulate many many different earphones for you(ue500 unfortunately not included) Or you could get Viper4Android and ask me to make a ue600 to ue500 filter for you
for android device , i like rock box . it rules but is complicated how good is viper4 .