@ Dave O'Neill, I added a converter between ipodEQ & band Eq, it is working. Thanks.
{
AudioStreamBasicDescription eqAsbd;
UInt32 streamFormatSize = sizeof(eqAsbd);
AudioUnitGetProperty(player->eqUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, &eqAsbd, &streamFormatSize);
AudioUnitSetProperty(convertrunit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &eqAsbd, streamFormatSize);
AudioStreamBasicDescription bandAsbd;
UInt32 bandstreamFormatSize = sizeof(bandAsbd);
AudioUnitGetProperty(player->bandEQUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &bandAsbd, &bandstreamFormatSize);
AudioUnitSetProperty(convertrunit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, &bandAsbd, bandstreamFormatSize);
}