Hi Brian, Russ,

I'm using a Arduino (using the latest HiFiduino code) connected to my BII I2C connector and pushing the config to the BII ES9018 chip. Could you please tell me the default parameters that you set in your Eprom so that I can match them?

Filter selection : Sharp or Slow
IIR filter : PCM, 50KHz, 60KHz or 70 KHz
DPLL bandwidth : Best, Lowest, Low, Low-Medium, Medium, Medium-High, High or Highest
Quantizer bit-length : 6-bit True-Differential, 7-bit Pseudo-Differential, 7-bit True-Differential, 8-bit Pseudo-Differential, 8-bit True-Differential
NOTCH delay: No Notch, clock/4, clock/8, clock/16, clock/32 or clock/64

I have played with these settings but can seem to get it right... Right now the sound is too soft and lacking detail.

I would really appreciate your help on this.

Thanks
Do